Sci/241 Week 5 Fat and Water Soluble Vitamins Essay

1219 Words Feb 22nd, 2013 5 Pages
Fat- and Water-soluble Vitamins
Vitamins are primarily classified by solubility. Some vitamins are soluble in water and others are soluble in fat. “According to The National Institute of Health, the body needs 13 vitamins for normal health.” This includes vitamins A, C, D, E, K and the B complex vitamins, thiamine, riboflavin, niacin, pantothenic acid, biotin, B6, B12 and folate. Each of these vitamins provides a variety of functions to the body which can be obtained from a well balanced diet (Farris, 2012).
You only need vitamins in small quantities (micronutrients) and they are essential to your health. Vitamins are important because they help the body to function optimally. Vitamins can be found in everything we eat and have
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They can also be found in whole grains, nuts, seeds, meat and fish.
Each fat soluble vitamin plays a different role in the body. Once your body stores them they can later be used when needed. Vitamin A helps with vision, bone growth, reproduction and cellular processes. Vitamin D helps with cell, nerve and immune functions and assists with the absorption of dietary calcium. Vitamin E is an antioxidant, protects cells from damage and prevents cardiovascular disease and cancer. Vitamin K helps with several blood clotting processes (Gardner, 2012). While fat soluble vitamins are important too much can be harmful and lead to toxicity levels since they are needed in small amounts and the body stores them. When the body can no longer store them symptoms can occur. Too much vitamin A can cause nausea, fatigue, headaches and loss of appetite known as hypervitaminosis A. Hypervitaminosis D causes loss of calcium from the bones and absorption by the intestines, vomiting and constipation. Excessive vitamin E can increase the risk of blood clotting and hemmorging. There are no known risks of toxicity in vitamin K (Boyer, 2012).
Water soluble vitamins are vitamins that dissolve in water and include all B vitamins and vitamin C. They must be replaced regularly in the diet because they are rapidly depleted. All B vitamins are categorized by numbers. B1 (thiamin) is found in foods such as lean pork,

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