NUTR 202 1nd Edition Lecture 2What drives our Food Choices? - Convenience- Coupons to somewhere/ can afford at the moment - Taste (major influence)- Texture/ smell- Reward/ punishment - Food available or what parents prepare/ what is in the house- Comfort/ emotions- Attitudes/ beliefs/ religious upbringing/ social gatherings/ culture6 Categories of Nutrients- Micronutrients include vitamins and minerals and are needed in small amounts - <1mg/day- Macronutrients include water, carbohydrates, proteins, lipids, and proteins are needed in large amounts - > 1 mg/day. Also note that organic compounds contain CARBON.Nutrients provide 3 things- Energy- macronutrients are the main supply; used to maintain body functions, fuel physical work, and repair the body. Micronutrients regulate biochemical functions that release energy contained in macronutrients.- Structures- they form structures - Regulation- body temperature, blood pressure, hormones and cell communication, as well as speed up reactions. What’s in Food?- Carbs: energy and fiber source- Protein: structural building blocks, cell reparation, hormone/enzyme production- Fat: energy storage- Water: lubricant, transportation, temperature regulation- Vitamins: are co-enzymes in chemical reactions, regulate body processesThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Minerals: in chemical reactions, nerve impulses, bone structure, and regulate body processes.Energy Yields- Carbohydrates - 4kcals/g- Fat- 9 kcals/g- Protein - 4 kcals/g- Alcohol- 7 kcals/gNote: fiber does not provide energy, we do not digest it. Sample problem: Skim milk has 12 g carbs X 4 =488 g of protein X 4 = 320 g of fat and total kcal/g =
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