PHYS ED 32 Lecture Notes - Lecture 6: Revamp, Trans Fat, Myplate
17 Nov 2020
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6 classes of essential nutrients are substances the body must get from food because it either can"t make them or make them fast enough to meet its needs. Fat soluble vitamins are a, d, e, k (can"t be absorbed unless you have fat in your diet) 5 major ones are calcium, phosphorus, sodium, magnesium & potassium. Calcium is in teeth, bones & nails. Blood clotting, passage of fluids through cell walls, proper heart action & muscle contraction. Phosphorus is important for bone, teeth health, metabolism, building nerve & brain cells. Kilocalorie is a measure of energy content in food. (tbl 8. 2) The amount of heat required to raise 1 kilogram (liter) of water 1 c. How many calories we need depends on gender, age, body size & physical activity. Fats -- essential in small amounts (tbl 8. 4) Fats supply energy, insulate body (protects muscles, bones), support & cushion organs, absorb fat-soluble vitamins, add flavor & texture to foods.
