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vitamins

Vitamins

Vitamins Vitamins are the chemical compounds that are required in low amounts but are essential for normal growth and metabolism. Vitamins may be divided into two groups: the fat-soluble vitamins (vitamins A,D,E and K) and the water-soluble vitamins (vitamin B and vitamin C). Vitamin A Vitamin A was the first fat-soluble vitamin identified (in 1913). […]

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