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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 - 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 …

  4. Vitamins: What are they, and what do they do? - 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.

  5. What Vitamins Should You Really Take Each Day? - Verywell Health

    Dec 5, 2025 · Vitamins are a great way to ensure your body gets the essential nutrients it needs beyond what you eat, but the vitamins you should take daily depend on your health goals.

  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 …

  8. Vitamins and Minerals - Nutrition.gov

    Learn about the functions that each vitamin and mineral performs in the body. Discover what minerals your body needs to stay healthy and work properly. Learn what vitamins your body needs and where …

  9. The Vitamins Doctors Say You Should Take Together

    4 days ago · Certain vitamins are more effective when taken together, according to experts. Here are the vitamins doctors say you should take together.

  10. Vitamins and Minerals | NCCIH

    3 days ago · Vitamins and minerals are essential substances that our bodies need to function normally. The known vitamins are vitamins A, C, D, E, and K and the B vitamins: thiamin (B1), riboflavin (B2), …