1nd Edition NUTR 202 Lecture 2 What 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 culture 6 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 processes These 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 g Note fiber does not provide energy we do not digest it Sample problem Skim milk has 12 g carbs X 4 48 8 g of protein X 4 32 0 g of fat and total kcal g 80
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