Vitamin D

What is vitamin D and what does it do?Vitamin D is a nutrient found in some foods that is needed for health and to maintain strong bones. It does so by helping the body absorb calcium (one of bone’s main building blocks) from food...

Vitamin A

What is vitamin A and what does it do?Vitamin A is a fat-soluble vitamin that is naturally present in many foods. Vitamin A is important for normal vision, the immune system, and reproduction. Vitamin A also helps the...

Hydrosoluble Vitamins

There are 9 water-soluble (8 B vitamins and vitamin C).Water-soluble vitamins dissolve easily in water and, in general, are readily excreted from the body, to the degree that urinary output is a strong predictor of vitamin consumption. Because they are not as readily...

Liposoluble Vitamins

There are 4 fat-soluble (A, D, E, and K).Fat-soluble vitamins are absorbed through the intestinal tract with the help of lipids (fats). Vitamins A and D can accumulate in the body, which can result in dangerous hypervitaminosis. Fat-soluble vitamin deficiency due to...

Dietary supplements

A dietary supplement is a product (other than tobacco) thatis intended to supplement the diet;contains one or more dietary ingredients (including vitamins; minerals; herbs or other botanicals; amino acids; and other substances) or their constituents;is intended to be...