Download Contemporary Nutrition: A Functional Approach by Gordon Wardlaw, Anne Smith PDF

By Gordon Wardlaw, Anne Smith
Contemporary foodstuff: A useful Approach is another model of Wardlaw-Smith's Contemporary Nutrition, 8e. whereas Contemporary food: A sensible Approach stocks the famous strengths of the 8th variation, it bargains a distinct method of the assurance of nutrients. It departs from a standard presentation via as an alternative organizing nutrients in the context of physiological capabilities and the medical conditions they impression. The textual content will offer scholars who lack a robust technology history the suitable stability of trustworthy meals info and useful consumer-oriented wisdom. With their pleasant writing kind, the authors act because the student's own consultant to dispelling universal misconceptions and to gaining an exceptional starting place for making trained food offerings.
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Extra info for Contemporary Nutrition: A Functional Approach
Sample text
Proteins Like carbohydrates and fats, proteins are composed of the elements carbon, oxygen, and hydrogen. But, unlike the other energy-yielding nutrients, all proteins also contain nitrogen. Proteins are the main structural material in the body. For example, proteins constitute a major part of bone and muscle; they are also important components in blood, body cells, enzymes, and immune factors. Proteins can also provide calories for the body—on average, 4 kcal per gram. Typically, however, the body uses little protein for the purpose of meeting daily calorie needs.
Water Water makes up the sixth class of nutrients. Although sometimes overlooked as a nutrient, water (chemically, H2O) has numerous vital functions in the body. It acts as a solvent and lubricant, as a vehicle for transporting nutrients and waste, and as a medium for temperature regulation and chemical processes. For these reasons, and because the human body is approximately 60% water, the average man should consume about 3 liters—equivalent to 3000 grams or about 13 cups—of water and/or other fluids containing water every day.
Women need closer to 2200 grams or about 9 cups per day. indd 11 09/11/10 1:48 PM Rev. , lettuce, grapes, and melons). The body even makes some water as a by-product of metabolism. Other Important Components in Food ᭡ Fruits, vegetables, beans, and whole- grain breads and cereals are typically rich in phytochemicals. Another group of compounds in foods from plant sources, especially within the fruit and vegetable groups, is what scientists call phytochemicals. Although these plant components are not considered essential nutrients in the diet, many of these substances provide significant health benefits.