In humans there are 13 vitamins: 4 fat-soluble (A, D, E, and K) and 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. [50] Find out from WebMD's slideshow which vitamins and minerals your body needs, what they do, and what foods you can eat to get them..

Understanding the Context

Biochemists traditionally separate them into two groups, the water-soluble vitamins and the fat-soluble vitamins. The common and chemical names of vitamins of both groups, along with their main biological functions and deficiency symptoms, are listed in the table. Vitamins and minerals are micronutrients required by the body to carry out a range of normal functions. However, these micronutrients are not produced in our bodies and must be derived from the food we eat.

Key Insights

Vitamins are essential to human health. Here, learn about each of the 13 vitamins, including good sources and how they help. Learn more here. Vitamins: What are they, and what do they do? - Medical News Today Learn what vitamins are, their functions, sources, deficiencies, and why they’re essential for health in this complete biochemistry guide.

Final Thoughts

Vitamins are substances that your body needs to grow and develop normally. There are 13 vitamins your body needs; Each has specific jobs.