Food for Shape_factors affecting food choice II.pdf

GEN N105F Food for Shape 營養 ∙ 養型 School of Nursing and Health Studies Factors affecting food choice (II) Prepared by Dr. Queenie Law Today’s lecture 1. Recognize the factors affecting food choice Factors affecting food choice behavior What do we eat? Why do we eat? When do we eat? How do we eat?...

GEN N105F Food for Shape 營養 ∙ 養型 School of Nursing and Health Studies Factors affecting food choice (II) Prepared by Dr. Queenie Law Today’s lecture 1. Recognize the factors affecting food choice Factors affecting food choice behavior What do we eat? Why do we eat? When do we eat? How do we eat? The Determinants of Food Choice Biological determinants Economic determinants Physical determinants Social determinants Psychological determinants Attitudes, beliefs and knowledge about food More…… (European Food Information Council, 2005) Biologically determined behavioral predispositions (Contento, I. R, 2011, p.28) Biologically determined behavioral predispositions Adaptive value: The liking for the sweet taste (signal a safe carbohydrate source of calories) The rejection of bitterness (signal potential poisons) (Contento, I. R, 2011, p.27) Biologically determined behavioral predispositions (cont’d) ‘Taste’ is consistently reported as a major influence on food behaviour ‘taste’ is the sum of all sensory stimulation that is produced by the ingestion of a food not only taste but also smell, appearance and texture of food Taste preferences and food aversions develop through experiences and are influenced by our attitudes, beliefs and expectations (European Food Information Council, 2005) Individual differences: Nontasters and Supertasters Genetic differences in sensitivity to tastes Differ in the number of fungiform taste buds Supertasters: the most taste buds Nontasters: the least (Contento, I. R, 2011, p.28) Hunger and Satiety physiological needs Survive, respond to the feelings of hunger and satiety The central nervous system is involved in controlling the balance between hunger, appetite stimulation and food intake Experience with food (Contento, I. R, 2011, p.31) Experience with food Pre- and postnatal experience Such learning, begins early, possibly even prenatally (Contento, I. R, 2011, p.31) Learning from the physiological consequences of eating: Preferences and Aversions Conditioned aversions: if eating is followed by negative effects, such as a feeling of nausea Exposure, familiarity and learning to accept new foods Liking for foods usually develops more slowly through a process of learned or conditional preference (repeated eating) Neophobia and Picky/Fussy Eating Experience and the basic tastes Conditioned satiety: learning what fullness means (Contento, I. R, 2011, p.31) Learning from Social-Affective Context: Social conditioning Social modeling: observing the behaviors of peers and adults Parenting practices: encourage healthful eating or modify and interfere with the child’s ability to respond to food appropriately Rewards: complex consequences The way parents offer foods: pressure to eat, highly restrictive parental controls, parents’ own practices (Contento, I. R, 2011, p.31) Person-related determinants (Contento, I. R, 2011, p.31) Intrapersonal determinants Perceptions, beliefs, attitudes and motivations Consumer attitudes and beliefs Psychological factors (stress and mood) Intrapersonal determinants (cont’d) Perceptions, beliefs, attitudes and motivations Environmental stimuli Trade-offs Knowledge and skills Social and cultural morns Interpersonal determinants Social and environmental determinants Physical/Built environment Food availability and accessibility Availability (array of food options that are acceptable and affordable) Accessibility (readiness and convenience of a food) (Contento, I. R, 2011, p.32) Interpersonal determinants (cont’d) Social and environmental determinants Physical/Built environment Food availability and accessibility Markets Workplace, schools and homes (Contento, I. R, 2011, p.33) Interpersonal determinants (cont’d) Social and environmental determinants Social structures and cultural environment Social relations (models, peer pressure) Cultural practices and family of origin Knowledge Traditions Beliefs Values (Contento, I. R, 2011, p.33) Interpersonal determinants (cont’d) Social and environmental determinants Social structures and policy Economic determinants Price Income Time use and household structure Education Grocery shopping trends (Contento, I. R, 2011, p.34) Interpersonal determinants (cont’d) Social and environmental determinants Social structures and policy Information environment Media Advertising (Contento, I. R, 2011, p.35) Social and environmental factors that influence food choices and dietary behaviors (Contento, I. R, 2011, p.37) Implications for nutrition education Addressing these determinants (Contento, I. R, 2011, p.36) Implications for nutrition education (cont’d) The process of nutrition education (Contento, I. R, 2011, p.38) References: European Food Information Council. (2005). The Determinants of Food Choice. Retrieved from http://www.eufic.org/article/en/expid/review-food-choice/ Contento, I. R. (2011). Overview of determinants of food choice and dietary change: Implications for nutrition education. Nutrition Education: Linking Research, Theory and Practice, 26–42.