NTS 135 Chapter Notes - Chapter 2: Nutrition, Empty Calorie, Nutrigenetics
Document Summary
Obesity epidemic: obesogenic environment: food availability and portion sizes, dec. activity. Population shift inc older adults = inc chronic diseases: ethnic and racial diversity = food pattern intake changes (inc health life expectancy risks or beneficial) Phytochemicals that mimic what we have in the body. Diet affects genes + genes affect nutrient needs and disease susceptibility: nutrigenetics: look at individual genetic code to specify care. Nutrition misinfo food companies improper labeling, false advertisement internet sources. No nutrient ever works alone primary or supporting role. Nutrient dense foods give essential nutrients towards kcal, empty calorie foods give kcal but no essential nutrients. Exchange one food for another in same group for variety. 3 groups: carbs (substitute starch for fruit), fats (oils), proteins: meat/meat substitutes. Must eat everyday: macro, carbs (4kcal/g fuel factor ): 45%-65%, heat and energy, glycogen: storage form of carbs for quick energy (made thru metabolism, fats (9kcal/g): alternate storage energy form should be.
