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Vad har 18-19 åringar för attityder mot Functional Food? : - En kvalitativ studieSidibé, Myriam, Ahmed Ismail, Muna January 2009 (has links)
Problem: What attitudes do young adults have towards Functional food? Is there any relation between these attitudes and young adults behaviour towards Functional Food? Purpose: The purpose of our thesis is to understand young adults attitudes towards Functional Food and also examine the relation between these attitudes and their behaviour towards Functional Food. Method: The authors of this thesis have used a qualitative method for data collection, focus group interviews. There were two focus groups interviews performed on high-school students at Alléskolan in Hallsberg. The interview questions and the analysis of the primary data have been based on the frame of reference. Conclusion: Our investigation shows similar results as previous studies about consumers attitudes towards Functional Food. Our respondents had mixed attitudes towards Functional Food. The consumers in general still have a sceptical attitude towards Functional Food. To gain an increased consumption of Functional Food in the Swedish market, the consumer must change their attitudes towards Functional Food. The manufacturers of Functional Food must improve their information about Functional Food products to the consumer and highlight the benefits of Functional Food.
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A study of consumer¡¦s cognition-intention of healthy food and behavior of purchasing using the Theory of Planned BehaviorHsu, Ming-Han 21 October 2010 (has links)
Chinese people are keen on nutritional Supplements for decades. They will consume on anything that are good for their health, just like the Chinese old folk says, ¡§If we sick, we need to find the cure, but if we are not sick, we need to stay fit¡¨. Most of Chinese people who still under this traditional point of view will pay whatever it cost to acquire the supplements that are good for their health, especially on special recipe. Keeping fit is a trend in the past few years. Nowadays, functional food is acceptable in our society. But we still don¡¦t understand much about it. Besides, based from the event that occurred in 2008 which our government has changed ¡¨Centrum¡¨ from drugs into food product, we can see that The standard on distinguishing drugs, functional food and food product is still an obscure. And it left consumer in the middle of confusions. Actually, on the consumer point of view, ¡§Centrum¡¨ is a functional food to them. Hence, our study is based from consumer perspective to research the consumer recognition on functional food, and also performing a further research on consumer buying intention on functional food and the impact factors on buying the functional food products.
Our Study using TPB model as our research fundamental for studying consumer acknowledgement on functional food and their buying intention. Our research sample is targeting citizen at Kaohsiung and Taichung city. We send out 120 questionnaires and 100 internet questionnaires and we manage to collect 220 samples. There are 194 effective questionnaire out of total sample of 220 that been collected, the sample effective rate is 88.19%. In-order to test the adaptability of the construct models, we use regression analysis and covariance analysis to analyze collected sample using SPSS version 14.
The result of this study discovered that consumer behavior on functional food can be proved by the TPB model. But in Taiwan, the definition of functional food even though has been defined by law, but consumer still doesn¡¦t have much information about the definition of functional food. And yet has caused the irrational behavior of consumer while purchasing functional food. Though this research we suggest the government perfume action on informing its people on the definition of functional food and the proper way on differentiate and to consume the functional food. And also, the government must have started to emphasize about the preventive medical perspective to the public to ease the pressure on structural aging problem in our nation.
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Beliefs and practices related to label reading and its implications for functional foods in South Africa / Jane Melissa BadhamBadham, Jane Melissa January 2004 (has links)
Motivation
There is international agreement and recognition that the health status of the
worlds' population is a cause for concern and that one of the key risk factors
for many of the diseases that are increasing at an alarming rate (heart
disease, diabetes, cancer) in both developed and developing countries, is
diet. Despite many successes (especially in the areas of the eradication and
containment of infectious disease and reduced fertility) and the huge
advances in scientific research and technology, that have increased both what
is known, and what can be done, for prevention and risk management, we still
face what many describe as a crisis. Knowledge it seems is not always
adequately reflected in public health practice.
The objective of the local (Department of Health, Directorate of Food Control)
and international (WHO, Codex Alimentarius) drive towards increased and
improved food labelling, is that if consumers have reliable nutrition information
available at the point of purchase and if they understand how their diet affects
their risk of diseases, they will be able to make risk-reducing food choices.
This could ultimately have a significant positive public health impact.
The food industry has also expressed an interest through the concept of
functional foods (food similar in appearance to conventional food that is
intended to be consumed as part of a normal diet, but has been modified to
subserve physiological roles beyond the provision of simple nutrient
requirements), that albeit in reality financially motivated, could provide
consumers with the opportunity to reduce their risks of some diseases through
readily available, good-tasting diets rather than through the use of curative
measures only.
For the success of both these initiatives in public health terms, consumers
must:
o accept the link between the food that they eat and their health
o actively look for and trust the messages communicated
be able to correctly process and integrate the information
o make a purchasing decision.
This highlights the importance of in-depth consumer understanding in order to
ensure that regulatory, educational and marketing strategies will affect
positive behaviour change and improve health status. Little consumer
research has been done in South Africa to assist all those involved
(government, industry, researchers, nutrition experts I dietitians, educators) in
gaining potentially important insights.
Objectives
Of South Africa's almost 31 million adults, some 11 million live in the
metropolitan areas and so have relative exposure to most media and access
to the widest range of available food products. This group is also a microcosm
of the larger South Africa - being made up of all races, ages and living
standards.
The overall objective of this study was to investigate the beliefs and practices
of South African metropolitan adults, in relation to the food and health link and
the health information contained on food packages in order to consider the
implications for functional foods.
The study design was focussed on four key variables, namely, gender, race,
age and living standard measure (LSM).
Methods
The study was designed to ensure that the results would be representative of
the metropolitan adult (>I6 years) population and that they could be weighted
and extrapolated. 2000 adults made up of 1000 Blacks. 640 Whites, 240
Coloureds and 120 Indians, with a 50150 gender split were drawn using a
stratified, random (probability) sampling method in order to allow for the
legitimate use of the mathematics of probability as well as to avoid interviewer
bias. The study group were interviewed, face-to-face, in home, in the
preferred language from English, Afrikaans, Xhosa, Zulu, Tswana, North
Sotho and South Sotho, by trained field workers. A minimum 20% back-check
on each interviewer's work was undertaken to ensure reliability and validity of
the data. The field worker used a pre-coded questionnaire that included
seventeen food related questions designed by a multidisciplinary team of
marketers, dietitians, nutritionists and research specialists. The food
questions used a 5-point Likert scale in order to measure attitude.
The data was captured (3 questionnaire were excluded due to being
incorrectly filled in) and the computer software package STATISTICA@
Release 6, which was used to perform the statistical analysis. The data was
data was weighted to represent the total metropolitan population prior to
analysis. Quantitative data was statistically analysed in order to generate
relevant descriptive statistics, cross tabulations and statistical tests.
Results
The study considered four variables; gender, race (Black, White, Coloured,
Indian), age (16-29, 30-44,45+) and living standards measure (LSM 2-3, LSM
4-6, LSM 7-10), to explored four statements:
1. I believe food can have an effect on my health
2. 1 always look for health information contained on the packaging of
food products
3. 1 don't take any notice of health information as it is only marketing
hype
4. 1 buy food that claims to contribute to my health.
The overall response to the belief that food can have an effect on health was
positive (54%). There was no practical significant difference between age
groups and genders but there were practical significant differences between
Blacks and the other race groups (Blacks having the lowest belief in the food
and health link) and between the highest LSM group and the other LSM
groups (LSM 7-1 0 had the strongest belief in the link between food and health
and this belief decreased with decreasing LSM).
Forty-two percent of respondents always look for health information on the
packaging of food, but there was no practical significant difference between all
the variables, however women were more likely than men to always look for
health information on food packaging.
Over half the respondents (51%) stated that they look for health information
and that it is not only marketing hype. There was a small practical significant
difference between the top and the bottom LSM group with LSM 7-10 being
less sceptical about the health information on food packaging.
67% buy foods that claim to beneffi their health and there was a small
practical significant difference between Blacks and Whites, with more Blacks
agreeing that they buy foods that claim to contribute to health.
CONCLUSION
Findings from this study indicate that adult metropolitan South Africans label
reading practices are influenced by a number of factors including attitudes,
beliefs and practices and that there are differences based on gender, race,
age and LSM which must be considered by regulators in drafting food
labelling regulations; the food industry when considering and developing
functional foods; and nutrition experts when planning education strategies.
Whilst the labelling of foods with health information and the development of
function foods might indeed potentially empower consumers to effectively
reduce their risk of many chronic diseases, on its own it is not enough.
Nutrition education is vital and must be planned giving due consideration to
the differences in belief and practices that exist within the different gender,
race, age and LSM groups found in South Africa.
Food consumption patterns are influenced by consumer attitudes, beliefs,
needs, lifestyles and social trends and so more multi-disciplinary research in
these fields must be encouraged to find ways to improve nutritional intakes
that will lead to improved health for all South Africans. / Thesis (M.Sc. (Dietetics))--North-West University, Potchefstroom Campus, 2005.
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South African consumers' opinion of the potential health benefits of soy and soy products as hormone replacement therapy (HRT) / Anel Van Wyk de VriesVan Wyk de Vries, Anel January 2003 (has links)
There is an increasing awareness in the food industry about the role that
proper nutrition plays in maintaining health and preventing disease. Women
especially have always been interested in nutrition and its impact on their
well-being. This awareness has placed more pressure on the food industry to
provide a greater variety of nutritious and wholesome products which has led
to the development of a new field in the food industry, called functional foods.
These are food products that apart from the micro- and macronutrients that it
already provides have additional important physiologically active functions
that enhance health. These active components, called phytochemicals (from
plant sources) and zoochemicals (from animal sources) have changed the role
of diet in health. Functional foods can, by nature or design, bridge the
traditional gap between food and medicine and thereby provide consumers
with the opportunity to become involved in their own health care. One of these
functional foods that have been receiving increased attention and research is
soy. Apart from other health benefits of soy, such as cholesterol reduction and
bone strengthening, scientific evidence has shown that soy can be used as an
alternative for hormone replacement therapy (HRT). The increased interest in
the latter can be ascribed to the changed attitude of women, as well as
evidence of the side effects of conventional hormone replacement therapies.
Consumer research in the nutraceutical area is, however, still in its infancy
stage.
Objective:
The main objective of this study was thus to assess South African consumers'
opinion of the potential health benefits of soy and soy products as an
alternative for HRT. To attain this main objective, the following specific
objectives were stated:
To determine, by means of a consumer questionnaire, the percentage of
South African consumers who are aware of soy.
To determine, by means of an attitude scale, the attitudinal disposition
of South African consumers towards the potential health benefits of
soy and soy products as an alternative for HRT.
To determine South African consumers' opinions regarding the
menopausal related health benefits of soy.
To determine whether there is a relation between respondents who
Eat/drink soy and their opinion of the potential health benefits of soy.
To determine whether there is a relation between respondents who
never use soy and their opinion of the bone strengthening benefit of
soy.
To determine whether there is a relation between respondents' opinion
of the health benefits of soy and their opinions of soy as an alternative
for HRT and reliever of menopausal symptoms, respectively.
Methods:
In this study, consumers' opinion regarding the health benefits of soy was
evaluated using a questionnaire. Respondents were randomly selected from
nine metropolitan, as well as rural areas in South Africa, representing the four
main race groups, namely whites, blacks, coloureds and Indians. The total
sample size of the metropolitan and rural subjects was 3001. A sub-dataset
was created which included female respondents that have heard of soy before
and were premenopausal (35-44 years) and post-menopausal (50-59 years) of
age. Thus, the total number of respondents used for further statistical analyses
was 825. The respondents expressed their opinions of the health benefits of
soy on a five-point hedonic (Likert) scale which was adapted to a three-point
scale for easier interpretation of the tables.
Results:
1. Of the 3 001 respondents, 2 437 (80%) were aware of soy.
2. A mean attitudinal disposition score of 2.47 on a three-point scale
indicated a neutral to positive attitudinal disposition of the South
African consumer population towards the potential health benefits of
soy and soy products as alternative for HRT. No practically significant
differences were found between the mean values of each statement,
which indicated that no specifically strong opinions were expressed
between different races or between different age groups.
3. Of all the consumers surveyed and those who did express a specific
opinion, 72% agreed that soy has many health benefits compared to
only 7% who disagreed. Although 34% of South Africans expressed a
positive opinion when asked if soy can be used as alternative for HRT,
the majority (46%) of the population had a neutral opinion. Forty-two
percent of the consumers who held an opinion regarding soy as reliever
of menopausal symptoms were positive, 35% had a neutral opinion and
23% of South Africans did not agree that soy can relieve menopausal
symptoms.
4. A relation, although not of practical significance, was found between
respondents who eat/drink soy and their opinion of the health benefits
of soy. Of the respondents who indicated that they eat/drink soy, the
majority agreed that soy has many health benefits. The respondents
who disagreed when asked if they eat/drink soy, still expressed an
overall positive opinion when asked whether soy has many health
benefits.
5. A relation, although not of practical significance, was found between
respondents who never use soy and their opinion of the bone
strengthening benefit of soy. Of those who indicated that they use soy,
the majority agreed that soy has a bone strengthening benefit. On the
contrary, only 43% of those who agreed that they never use soy were
positive about the bone strengthening benefit of soy, whereas 37% held
a neutral opinion and 20% expressed a negative opinion.
6. The relation between respondents' opinion of the overall health
benefits of soy and their opinion of soy as alternative for HRT and
reliever of menopausal symptoms was of practical significance. Of the
respondents who did not agree that soy has many health benefits, the
majority expressed a negative opinion of soy as an alternative for HRT.
Of those who agreed that soy has many health benefits, 45% expressed
a neutral opinion and 44% a positive opinion of soy as alternative for
HRT. Almost half (47%) of the respondents who agreed that soy does
have many health benefits, expressed a neutral opinion when asked if
soy can relieve menopausal symptoms, whereas only 30% had a
positive opinion in this regard. The majority (86%) of the respondents
who disagreed that soy has many health benefits, also expressed a
negative opinion of soy as reliever for menopausal symptoms
Conclusion:
The results of this study indicate that 80% of the South African consumer
population are aware of soy and that South African consumers have a neutral
to positive attitudinal disposition towards the potential health benefits of soy.
Respondents did not express a particularly strong opinion regarding several
health benefits of soy. It may be hypothesized that they are not informed well
enough on the health benefits of soy as to take a stand and to form a definite
opinion. Neither different race groups, nor pre- or post-menopausal women
differ significantly in the frequency of their opinions, indicating that in this
study, race and age did not have a practical significant influence on opinion of
the health benefits of soy.
Of all those surveyed and who did express a specific opinion, 72% agreed that
soy has many health benefits, which is almost the same percentage (74%) as
American consumers who perceive soy products as healthy as according to the
United Soybean Board (USB) National Report (2003-2004:4). A survey by
Adams (2001:433) reported that 71% of American consumers believed that
plant-derived HRT have fewer risks and can thus be used as a safe alterative
for conventional HRT. According to the results of the present study only 34%
of South African consumers expressed a positive opinion when asked if soy
can be used as an alternative for HRT. Insufficient evidence on the safety and
efficacy of the potential health benefits of soy, as well as a lack of consumer
education in South Africa, could be the reason for this uncertainty among
XIV
South African consumers. While only 26% of American consumers are aware
that soy might relieve menopausal symptoms (USB National Report, 2003-
2004:4), results of the current study found that 42% of South Africans were of
opinion that soy can relieve menopausal symptoms.
A relation, although not of practical significance, was found between
respondents who eat/drink soy and their opinion of the health benefits of soy.
This can be an indication that whether or not the South African consumer
population consume soy doesn't have an influence on their opinion of soy's
health benefits in practice. The relation found between respondents who never
use soy and their opinion of the bone strengthening benefit of soy were not of
practical significance. This can be an indication that whether or not South
Africans use soy does not influence their opinion of the bone strengthening
benefit of soy in practice. Furthermore, a practically significant relation was
found between respondents' opinion of the overall health benefits of soy and
their opinion of soy as alternative for HRT and reliever of menopausal
symptoms, respectively. Interestingly, respondents who expressed a positive
opinion regarding the health benefits of soy did not have a convincingly
positive opinion of soy as alternative for HRT and as reliever of menopausal
symptoms. They expressed a more neutral opinion. As expected, consumers
that were not of opinion that soy has certain health benefits, also disagreed
when asked if soy can be used as an alternative for HRT or as reliever of
menopausal symptoms.
Although the causes for the respondents' opinion or uncertainty were not
determined in this study, it can be hypothesised that it may be due to lack of
standardisation of evidence on the safety and efficacy of alternative hormone
replacement therapies. Further studies are still needed to determine the
contributing factors which influence consumers' opinion or lack of opinion on
soy. If consumers are not educated about the benefits and disadvantages of
soy as alternative for HRT, they cannot make intelligent decisions and
choices as to whether or not to use soy as alternative for HRT. / Thesis (M. Consumer Science)--North-West University, Potchefstroom Campus, 2004.
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South African consumers' perception of soy and soy products / Naómi HarmseHarmse, Naómi January 2005 (has links)
Food that provides health benefits beyond basic nutrition, by virtue of physiologically
active food components are known as functional foods. Soybeans contain some of these
phytochemical components such as isoflavones. Due to the lack of relevant data, the aim
of this study was to assess South African consumers' perceptions towards soy and soy
products. Respondents (n=3001) were randomly selected from 9 metropolitan as well as
rural areas in South Africa. The questionnaire consisted of 17 food related topics. Four
of these sections (which were also used in this study) probed information on soy and soy
products. The data of 81 % respondents (n=2437), who were aware of soy, were used for
further statistical analyses. There were no practical significant differences between rural
and metropolitan respondents' perceptions regarding each statement. Large practical
significant differences were found between racial groups regarding most of the
statements. In general Blacks were more positive towards the use and taste of soy, as
opposed to Whites. More Indians were aware of meat substitutes made from soy than the
other racial groups. Marketing efforts in South Africa should focus on those groups that
like the taste of soy best and who would consume soy regularly. / Thesis (M. (Consumer Science))--North-West University, Potchefstroom Campus, 2005.
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Influence of Digestion Model, Product Type, and Enrichment Level on in vitro Bioavailability of Lutein from High Lutein Functional Bakery ProductsRead, Andrew 23 January 2012 (has links)
Lutein is a lipid soluble plant pigment with recognized health benefits, although intake levels by the general population and bioavailability are generally low. These factors have led to interest in producing high lutein functional foods, including baked products. Cookies, muffins, and flatbreads, were produced at three enrichment levels (equivalent to 0.5, 1.0, and 2.0 mg per serving) and then subjected to an in vitro simulation of human gastric and duodenal digestion coupled with Caco-2 monolayers. Lutein transfer to the aqueous phase during digestion (i.e. bioaccessibility) and monolayer absorption were determined as estimates of potential bioavailability. The higher fat products (muffins and cookies) resulted in higher overall bioaccessibility (p<0.05) and absorption at most levels of enrichment. Digestive conditions representative of the fed and fasted state were compared, with the fed model resulting in much higher estimates of bioavailability. Lutein concentration in the aqueous was the most important factor in determining subsequent monolayer absorption.
Overall, the cookie was the most effective product for bioaccessibility, and enriching them to the highest level would result in the greatest delivery of bioavailable lutein to the body. / Agriculture and Agri-Food Canada
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Barley and flax hull ingredients as functional foodsHao, Meili 22 September 2010 (has links)
The purpose of the research was to investigate the potential for converting agricultural by-products, barley hull and flaxseed hull as well as their co-extract, into value-added functional food ingredients.
Four varieties of barley hull and 3 types of flaxseed hull were hydrolyzed in calcium hydroxide solution in a water bath at 70°C for 4 hrs with shaking. The major phenolic compounds in barley hull, flaxseed hull and their co-extracts were identified by reversed phase high performance liquid chromatography (HPLC) coupled with photodiode array detection (PAD) and quadrupole - time of flight (Q-TOF) mass spectrometry (LC-MS). Ferulic acid, p-coumaric acid, vanillic acid and vanillin, and four ferulate dehydrodimers were detected in barley hull and their co-extracts. Quantitative analysis was conducted on the phenolic acids using the available standards. However, the phenolic compounds in flaxseed were found to be distinct from that of barley hull. Large amounts of secoisolariciresinol diglucoside (SDG), ferulic acid glucoside (FeAG), p-coumaric acid glucoside (CouAG) were found in flaxseed hull with minor content of caffeic acid glucoside (CAG) and flavonoids herbacitin glucoside (HDG), whereas the phytochemical profile of the co-extract was enriched by combining major phenolic compounds from both barley hull and flaxseed hull.The antioxidant activity of barley hull, flaxseed hull as well as their co-extract was evaluated using DPPH radical scavenging assay while total phenolic content was measured using the Folin-Ciocalteau method. After screening using chemical assays, the representative barley hull extract, flaxseed hull extract as well as their co-extract were tested for their intracellular antioxidant activity and the antiproliferative activity in PC-3 human prostate cancer cells. Both chemical assays and the cell culture assays indicated that barley and flaxseed hull had strong antioxidant activity and antiproliferative activity. Although the co-extract exhibited the strong antioxidant activity in the chemicals assay, it behaved differently in the cell culture assay, which may be attributed to the chemical and biological properties of the major phenolics in the co-extract.Following evaluation of the antioxidant activity and anticancer effect of barley hull extract, flaxseed hull extract as well as their co-extract, each type of extract was incorporated into Chinese steamed bread (CSB). The phytochemical profile of CSB was enriched by incorporating barley hull extract, flaxseed hull extract as well as their co-extract, which resulted in a significant enhancement in the antioxidant activity evaluated by DPPH and ORAC.
Therefore, barley hull, flaxseed hull and their co-extract are suggested as promising sources of functional food ingredients.
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Formulating a pasta sauce with added health benefits for the aging baby boomer populationBugera, Jacqueline 25 August 2011 (has links)
Background: Baby boomers are placing a demand on the food industry for products that promote longevity, well-being, and contain functional ingredients for enhanced nutritional and health benefits. Objectives: Develop a pasta sauce with increased health benefits; conduct sensory and shelf-life testing; and conduct consumer acceptability tests. Methods: Study was conducted in four phases. Three sources of fibre were investigated (oat fibre, pea fibre and red lentils). Sensory analysis conducted to identify ideal level of red lentils in the pasta sauce followed by a shelf-life study. Chemical, physical and microbiological analyses were performed. Consumer acceptability testing conducted with one hundred and twenty-three baby boomers. Results: Red lentils at a concentration of 15% were identified as ideal source and amount showing no significant differences in analyses compared to other fibres, other concentrations and over 12 week storage. Participants were in favour of the color, flavour, odour and texture of the pasta sauce and willing to pay $0.34 more for a 750 ml jar compared to average commercial price. Conclusions: The pasta sauce may aid baby boomers in attaining daily recommendations of fibre and an alternative to commercial pasta sauces in offering lower sodium content.
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Beliefs and practices related to label reading and its implications for functional foods in South Africa / Jane Melissa BadhamBadham, Jane Melissa January 2004 (has links)
Motivation
There is international agreement and recognition that the health status of the
worlds' population is a cause for concern and that one of the key risk factors
for many of the diseases that are increasing at an alarming rate (heart
disease, diabetes, cancer) in both developed and developing countries, is
diet. Despite many successes (especially in the areas of the eradication and
containment of infectious disease and reduced fertility) and the huge
advances in scientific research and technology, that have increased both what
is known, and what can be done, for prevention and risk management, we still
face what many describe as a crisis. Knowledge it seems is not always
adequately reflected in public health practice.
The objective of the local (Department of Health, Directorate of Food Control)
and international (WHO, Codex Alimentarius) drive towards increased and
improved food labelling, is that if consumers have reliable nutrition information
available at the point of purchase and if they understand how their diet affects
their risk of diseases, they will be able to make risk-reducing food choices.
This could ultimately have a significant positive public health impact.
The food industry has also expressed an interest through the concept of
functional foods (food similar in appearance to conventional food that is
intended to be consumed as part of a normal diet, but has been modified to
subserve physiological roles beyond the provision of simple nutrient
requirements), that albeit in reality financially motivated, could provide
consumers with the opportunity to reduce their risks of some diseases through
readily available, good-tasting diets rather than through the use of curative
measures only.
For the success of both these initiatives in public health terms, consumers
must:
o accept the link between the food that they eat and their health
o actively look for and trust the messages communicated
be able to correctly process and integrate the information
o make a purchasing decision.
This highlights the importance of in-depth consumer understanding in order to
ensure that regulatory, educational and marketing strategies will affect
positive behaviour change and improve health status. Little consumer
research has been done in South Africa to assist all those involved
(government, industry, researchers, nutrition experts I dietitians, educators) in
gaining potentially important insights.
Objectives
Of South Africa's almost 31 million adults, some 11 million live in the
metropolitan areas and so have relative exposure to most media and access
to the widest range of available food products. This group is also a microcosm
of the larger South Africa - being made up of all races, ages and living
standards.
The overall objective of this study was to investigate the beliefs and practices
of South African metropolitan adults, in relation to the food and health link and
the health information contained on food packages in order to consider the
implications for functional foods.
The study design was focussed on four key variables, namely, gender, race,
age and living standard measure (LSM).
Methods
The study was designed to ensure that the results would be representative of
the metropolitan adult (>I6 years) population and that they could be weighted
and extrapolated. 2000 adults made up of 1000 Blacks. 640 Whites, 240
Coloureds and 120 Indians, with a 50150 gender split were drawn using a
stratified, random (probability) sampling method in order to allow for the
legitimate use of the mathematics of probability as well as to avoid interviewer
bias. The study group were interviewed, face-to-face, in home, in the
preferred language from English, Afrikaans, Xhosa, Zulu, Tswana, North
Sotho and South Sotho, by trained field workers. A minimum 20% back-check
on each interviewer's work was undertaken to ensure reliability and validity of
the data. The field worker used a pre-coded questionnaire that included
seventeen food related questions designed by a multidisciplinary team of
marketers, dietitians, nutritionists and research specialists. The food
questions used a 5-point Likert scale in order to measure attitude.
The data was captured (3 questionnaire were excluded due to being
incorrectly filled in) and the computer software package STATISTICA@
Release 6, which was used to perform the statistical analysis. The data was
data was weighted to represent the total metropolitan population prior to
analysis. Quantitative data was statistically analysed in order to generate
relevant descriptive statistics, cross tabulations and statistical tests.
Results
The study considered four variables; gender, race (Black, White, Coloured,
Indian), age (16-29, 30-44,45+) and living standards measure (LSM 2-3, LSM
4-6, LSM 7-10), to explored four statements:
1. I believe food can have an effect on my health
2. 1 always look for health information contained on the packaging of
food products
3. 1 don't take any notice of health information as it is only marketing
hype
4. 1 buy food that claims to contribute to my health.
The overall response to the belief that food can have an effect on health was
positive (54%). There was no practical significant difference between age
groups and genders but there were practical significant differences between
Blacks and the other race groups (Blacks having the lowest belief in the food
and health link) and between the highest LSM group and the other LSM
groups (LSM 7-1 0 had the strongest belief in the link between food and health
and this belief decreased with decreasing LSM).
Forty-two percent of respondents always look for health information on the
packaging of food, but there was no practical significant difference between all
the variables, however women were more likely than men to always look for
health information on food packaging.
Over half the respondents (51%) stated that they look for health information
and that it is not only marketing hype. There was a small practical significant
difference between the top and the bottom LSM group with LSM 7-10 being
less sceptical about the health information on food packaging.
67% buy foods that claim to beneffi their health and there was a small
practical significant difference between Blacks and Whites, with more Blacks
agreeing that they buy foods that claim to contribute to health.
CONCLUSION
Findings from this study indicate that adult metropolitan South Africans label
reading practices are influenced by a number of factors including attitudes,
beliefs and practices and that there are differences based on gender, race,
age and LSM which must be considered by regulators in drafting food
labelling regulations; the food industry when considering and developing
functional foods; and nutrition experts when planning education strategies.
Whilst the labelling of foods with health information and the development of
function foods might indeed potentially empower consumers to effectively
reduce their risk of many chronic diseases, on its own it is not enough.
Nutrition education is vital and must be planned giving due consideration to
the differences in belief and practices that exist within the different gender,
race, age and LSM groups found in South Africa.
Food consumption patterns are influenced by consumer attitudes, beliefs,
needs, lifestyles and social trends and so more multi-disciplinary research in
these fields must be encouraged to find ways to improve nutritional intakes
that will lead to improved health for all South Africans. / Thesis (M.Sc. (Dietetics))--North-West University, Potchefstroom Campus, 2005.
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South African consumers' opinion of the potential health benefits of soy and soy products as hormone replacement therapy (HRT) / Anel Van Wyk de VriesVan Wyk de Vries, Anel January 2003 (has links)
There is an increasing awareness in the food industry about the role that
proper nutrition plays in maintaining health and preventing disease. Women
especially have always been interested in nutrition and its impact on their
well-being. This awareness has placed more pressure on the food industry to
provide a greater variety of nutritious and wholesome products which has led
to the development of a new field in the food industry, called functional foods.
These are food products that apart from the micro- and macronutrients that it
already provides have additional important physiologically active functions
that enhance health. These active components, called phytochemicals (from
plant sources) and zoochemicals (from animal sources) have changed the role
of diet in health. Functional foods can, by nature or design, bridge the
traditional gap between food and medicine and thereby provide consumers
with the opportunity to become involved in their own health care. One of these
functional foods that have been receiving increased attention and research is
soy. Apart from other health benefits of soy, such as cholesterol reduction and
bone strengthening, scientific evidence has shown that soy can be used as an
alternative for hormone replacement therapy (HRT). The increased interest in
the latter can be ascribed to the changed attitude of women, as well as
evidence of the side effects of conventional hormone replacement therapies.
Consumer research in the nutraceutical area is, however, still in its infancy
stage.
Objective:
The main objective of this study was thus to assess South African consumers'
opinion of the potential health benefits of soy and soy products as an
alternative for HRT. To attain this main objective, the following specific
objectives were stated:
To determine, by means of a consumer questionnaire, the percentage of
South African consumers who are aware of soy.
To determine, by means of an attitude scale, the attitudinal disposition
of South African consumers towards the potential health benefits of
soy and soy products as an alternative for HRT.
To determine South African consumers' opinions regarding the
menopausal related health benefits of soy.
To determine whether there is a relation between respondents who
Eat/drink soy and their opinion of the potential health benefits of soy.
To determine whether there is a relation between respondents who
never use soy and their opinion of the bone strengthening benefit of
soy.
To determine whether there is a relation between respondents' opinion
of the health benefits of soy and their opinions of soy as an alternative
for HRT and reliever of menopausal symptoms, respectively.
Methods:
In this study, consumers' opinion regarding the health benefits of soy was
evaluated using a questionnaire. Respondents were randomly selected from
nine metropolitan, as well as rural areas in South Africa, representing the four
main race groups, namely whites, blacks, coloureds and Indians. The total
sample size of the metropolitan and rural subjects was 3001. A sub-dataset
was created which included female respondents that have heard of soy before
and were premenopausal (35-44 years) and post-menopausal (50-59 years) of
age. Thus, the total number of respondents used for further statistical analyses
was 825. The respondents expressed their opinions of the health benefits of
soy on a five-point hedonic (Likert) scale which was adapted to a three-point
scale for easier interpretation of the tables.
Results:
1. Of the 3 001 respondents, 2 437 (80%) were aware of soy.
2. A mean attitudinal disposition score of 2.47 on a three-point scale
indicated a neutral to positive attitudinal disposition of the South
African consumer population towards the potential health benefits of
soy and soy products as alternative for HRT. No practically significant
differences were found between the mean values of each statement,
which indicated that no specifically strong opinions were expressed
between different races or between different age groups.
3. Of all the consumers surveyed and those who did express a specific
opinion, 72% agreed that soy has many health benefits compared to
only 7% who disagreed. Although 34% of South Africans expressed a
positive opinion when asked if soy can be used as alternative for HRT,
the majority (46%) of the population had a neutral opinion. Forty-two
percent of the consumers who held an opinion regarding soy as reliever
of menopausal symptoms were positive, 35% had a neutral opinion and
23% of South Africans did not agree that soy can relieve menopausal
symptoms.
4. A relation, although not of practical significance, was found between
respondents who eat/drink soy and their opinion of the health benefits
of soy. Of the respondents who indicated that they eat/drink soy, the
majority agreed that soy has many health benefits. The respondents
who disagreed when asked if they eat/drink soy, still expressed an
overall positive opinion when asked whether soy has many health
benefits.
5. A relation, although not of practical significance, was found between
respondents who never use soy and their opinion of the bone
strengthening benefit of soy. Of those who indicated that they use soy,
the majority agreed that soy has a bone strengthening benefit. On the
contrary, only 43% of those who agreed that they never use soy were
positive about the bone strengthening benefit of soy, whereas 37% held
a neutral opinion and 20% expressed a negative opinion.
6. The relation between respondents' opinion of the overall health
benefits of soy and their opinion of soy as alternative for HRT and
reliever of menopausal symptoms was of practical significance. Of the
respondents who did not agree that soy has many health benefits, the
majority expressed a negative opinion of soy as an alternative for HRT.
Of those who agreed that soy has many health benefits, 45% expressed
a neutral opinion and 44% a positive opinion of soy as alternative for
HRT. Almost half (47%) of the respondents who agreed that soy does
have many health benefits, expressed a neutral opinion when asked if
soy can relieve menopausal symptoms, whereas only 30% had a
positive opinion in this regard. The majority (86%) of the respondents
who disagreed that soy has many health benefits, also expressed a
negative opinion of soy as reliever for menopausal symptoms
Conclusion:
The results of this study indicate that 80% of the South African consumer
population are aware of soy and that South African consumers have a neutral
to positive attitudinal disposition towards the potential health benefits of soy.
Respondents did not express a particularly strong opinion regarding several
health benefits of soy. It may be hypothesized that they are not informed well
enough on the health benefits of soy as to take a stand and to form a definite
opinion. Neither different race groups, nor pre- or post-menopausal women
differ significantly in the frequency of their opinions, indicating that in this
study, race and age did not have a practical significant influence on opinion of
the health benefits of soy.
Of all those surveyed and who did express a specific opinion, 72% agreed that
soy has many health benefits, which is almost the same percentage (74%) as
American consumers who perceive soy products as healthy as according to the
United Soybean Board (USB) National Report (2003-2004:4). A survey by
Adams (2001:433) reported that 71% of American consumers believed that
plant-derived HRT have fewer risks and can thus be used as a safe alterative
for conventional HRT. According to the results of the present study only 34%
of South African consumers expressed a positive opinion when asked if soy
can be used as an alternative for HRT. Insufficient evidence on the safety and
efficacy of the potential health benefits of soy, as well as a lack of consumer
education in South Africa, could be the reason for this uncertainty among
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South African consumers. While only 26% of American consumers are aware
that soy might relieve menopausal symptoms (USB National Report, 2003-
2004:4), results of the current study found that 42% of South Africans were of
opinion that soy can relieve menopausal symptoms.
A relation, although not of practical significance, was found between
respondents who eat/drink soy and their opinion of the health benefits of soy.
This can be an indication that whether or not the South African consumer
population consume soy doesn't have an influence on their opinion of soy's
health benefits in practice. The relation found between respondents who never
use soy and their opinion of the bone strengthening benefit of soy were not of
practical significance. This can be an indication that whether or not South
Africans use soy does not influence their opinion of the bone strengthening
benefit of soy in practice. Furthermore, a practically significant relation was
found between respondents' opinion of the overall health benefits of soy and
their opinion of soy as alternative for HRT and reliever of menopausal
symptoms, respectively. Interestingly, respondents who expressed a positive
opinion regarding the health benefits of soy did not have a convincingly
positive opinion of soy as alternative for HRT and as reliever of menopausal
symptoms. They expressed a more neutral opinion. As expected, consumers
that were not of opinion that soy has certain health benefits, also disagreed
when asked if soy can be used as an alternative for HRT or as reliever of
menopausal symptoms.
Although the causes for the respondents' opinion or uncertainty were not
determined in this study, it can be hypothesised that it may be due to lack of
standardisation of evidence on the safety and efficacy of alternative hormone
replacement therapies. Further studies are still needed to determine the
contributing factors which influence consumers' opinion or lack of opinion on
soy. If consumers are not educated about the benefits and disadvantages of
soy as alternative for HRT, they cannot make intelligent decisions and
choices as to whether or not to use soy as alternative for HRT. / Thesis (M. Consumer Science)--North-West University, Potchefstroom Campus, 2004.
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