Vitamins
Vitamins A, D, E, and K are only soluble in fat. Vitamins C and B are soluble in water. Water-soluble vitamins are excreted in the urine and are more easily absorbed in our bodies. Fat-soluble vitamins need to be absorbed through the skin or intestinal tract. There are 13 vitamins that are essential to health Vitamin A -essential for normal vision and night blindness - necessary for normal cell division and growth, development of bones, teeth and healthy skin, also for the mucous membranes of and the epithelial tissue that lines the intestine, airways and other organs - Too much vitamin A can cause toxicity Vitamin D -two types of vitamin D, D2 which comes from plants, and D3 which comes from skin exposer to the sun's UV rays -we need at least 10 minutes of exposer to the sun each day -we must have vitamin D in order to absorb calcium -vitamin D promotes absorption of phosphorus and prevents the kidneys from excreting protein in the urine -its role in vitamin absorption promotes growth of strong bones and teeth -a deficiency causes rickets in children and osteamalacia in Adults -deficiency symptoms include convulsions and muscle twitching Vitamin E -Vitamin E helps maintain healthy red bl...
