Three separate food grouping systems were derived for diet evaluation by utilizing a computer clustering program. System 1 was based on grouping of foods according to nutrient quality and quantity, system 2 was based on nutrient quality and frequency of consumption and system 3 was based on nutrient quality and kilocalories consumed. Defendable nutritional principles as well as knowledge of present nutritional concerns and eating habits of the U.S. population underpinned the derivation of the three systems. Over 4,000 individual foods were condensed to approximately 325 groups. The three food grouping systems which were developed were compared for accuracy by calculating nutrients for a mean daily food record for a random sample of 126 adults in the National Food Consumption Survey. Percent error for each of 15 nutrients was calculated for each derived system as contrasted to the value which resulted from using individual nutrient values for discrete foods. In evaluating the 3 systems the most accurate comparison resulted from the system which was based on frequency of consumption. The results of the comparison indicated that 11 of the 15 nutrients which were determined were consistent in all systems. The exceptions were vitamin A, vitamin B12, riboflavin and ascorbic acid. These inconsistencies can be attributed to the nature of the food sources and the nutrients themselves. It was demonstrated that fortified foods and food supplements which contain varying amounts of selected nutrients require individual treatment for accurate analysis. These results supported the hypothesis that a shortened dietary analysis system can be used without compromising accuracy.

Purpose/aim The aim of our dissertation is to increase consumers’ buying awareness of green food and promote green food consumption in eastern China. Approach We collect data through a questionnaire and present hypotheses through reading related scientific articles. The data analysis includes description of samples and statistical tests in the form of cross tabulations, chi squares and frequency tables. Findings The questionnaire researches consumers’ income and education levels, ages and price of green food, etc. We find ages and education levels have a significant influence on frequency of buying green food, while income levels and price have no strong influence. Originality/value An original idea is to research the current green food market, and based on it to increase the consumers’ buying awareness and promote green food consumption. Further, the empirical data is collected from different cities in the east where there is a higher demand of green food. The study has value for the debate concerning the group of people who are older and have lower education levels as our great target consumers. The result of income levels and price means consumers are more lay attention to green food quality.

Master's thesis. / Format: PDF. Bibl.

Master's thesis. / Format: PDF. Bibl.

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This dissertation examines body image ideology within the larger context of adolescent social networks and the physical environment of a high school, specifically focusing on factors that may be contributing to the current overweight/obesity epidemic among youth. I explore the ways in which adolescents construct gendered identities through talk about body image as well as adolescent practices and discourses regarding exercise and food consumption, including how their perceptions of what it means to be athletic and healthy intersect with their perceptions about body image ideals and norms. I further discuss ways in which adolescents construct moral identities through 'othering' discourses about overweight and obese people, including teasing practices. A primary goal of this ethnographic research project is to integrate the study of body image, food consumption, exercise, and teasing practices among youth in order to contribute a contextualized understanding of how youth perceive and enact these behaviors in their daily lives.

Thesis (M. Consumer Science (General) -- University of Pretoria, 2008. / Includes bibliographical references. Available on the Internet via the World Wide Web.

Thesis (M.S.)--Eastern Illinois University, 2008. / Includes bibliographical references (leaves 47-53).

Thesis PlanA (M.S.)--University of Wisconsin--Stout, 2008. / Includes bibliographical references.