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Chapter 2

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Kinesiology & Health Science
KINE 4020
Roger Kelton

A healthful diet is... – Adequate– means that the diet provides sufficient energy and enough of all the nutrients to meet the needs of healthy people. Balanced– The art of balancing the diet involves consuming enough— but not too much—of each type of food Varied (Colourful)- eat food from different groups kCalorie (Energy) Control= kcalorie control is to select foods of high nutrient density. Nutrient Density is good because foods in it that deliver the most nutrients for the least food energy. 1 cup of milk provides about 300 milligrams of calcium, and 1⁄2 cup of fresh, cooked turnip greens provides about 100 milligrams. Thus a serving of milk offers three times as much calcium as a serving of turnip greens. To get 300 milligrams of calcium, a person could choose either 1 cup of milk or 11⁄2 cups of turnip greens. Another valuable way to evalu-ate foods is to consider their nutrient density— their nutrient contribution per kcalorie. Fat-free milk delivers about 85 kcalories with its 300 milligrams of cal- cium. To calculate the nutrient density, divide milligrams by kcalories: 300 mg calcium = 3.5 mg per kcal 85 kcal Do the same for the fresh turnip greens, which provide 15 kcalories w
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