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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

    Nov 22, 2025 · 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 - MedlinePlus

    Jul 17, 2024 · Vitamins are substances that your body needs to grow and develop normally. There are 13 vitamins your body needs; Each has specific jobs.

  5. Vitamins: What are they, and what do they do? - Medical News Today

    Oct 5, 2023 · This article explains what vitamins are, what they do, and which foods are good sources. Follow the links in blue below for more information about each vitamin.

  6. What Are Vitamins, and Why Are They Important? - Verywell Health

    Sep 4, 2025 · Vitamins are essential nutrients that help with many body functions, including metabolism and energy. There are two types of vitamins: fat-soluble and water-soluble, each of which is …

  7. Vitamins & Supplements - WebMD

    Get all the information you need on vitamins and supplements, from A to Z, with WebMD's comprehensive database. Our expert resources cover everything from health benefits to potential side...

  8. Swanson - Vitamins, Supplements & Natural Health Products

    Shop online for high-quality vitamins, supplements, and natural health products at unbeatable prices with Swanson Health Products.

  9. 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 …

  10. Vitamin and Mineral Supplement Fact Sheets

    These include vitamins, minerals, herbs and botanicals, probiotics, and more. Many of these resources are available in versions written for health professionals and for consumers (in both English and …