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  1. Vitamin - Wikipedia

    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 …

  2. Vitamin | Definition, Types, & Facts | Britannica

    Jan 2, 2026 · 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 …

  3. Vitamins and Minerals From A to Z - WebMD

    Aug 23, 2022 · 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..

  4. Vitamins and Minerals - The Nutrition Source

    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 …

  5. What are vitamins, and how do they work? - Medical News Today

    Oct 5, 2023 · Vitamins are essential to human health. Here, learn about each of the 13 vitamins, including good sources and how they help. Learn more here.

  6. Vitamins: MedlinePlus Medical Encyclopedia

    Jan 21, 2025 · Vitamins are a group of substances that are needed for normal cell function, growth, and development.

  7. Vitamins & Minerals - Cleveland Clinic

    Oct 1, 2025 · What are vitamins and minerals? Vitamins and minerals are micronutrients, substances your body needs in small amounts to work properly. They’re part of your body’s internal chemistry, a …