NSC 170C1 Chapter Notes - Chapter 8: Methionine, Myelin, Carotenoid
3 Nov 2016
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Document Summary
Prevents specific deficiency disorder when consumed in enough amounts. Isn"t made by body or isn"t made in the right amounts. At risk when diet consistently lacks micronutrients. Cells store vitamins but when the run out the body"s tissue levels of the vitamin are depleted and signs and symptoms of deficiency begin to occur. Megadose- at least 10 times the recommended amount of a nutrient. Vitamins have drug like effects when taken in large amounts. In fats, oils, and fatty portions of foods. Vitamin c and the b vitamins (thiamin, riboflavin, niacin, vitamin b6, pantothenic acid, folate, biotin, and vitamin b12) are water- soluble. Dissolve in watery components of food and body. Choline- is a vitamin like nutrient that dissolves in water. Body stores excess fat- soluble vitamins because they don"t dissolve in watery substances like urine. Can accumulate in body fat and liver and cause toxicity overtime. Water soluble vitamins are less toxic than fat soluble.
