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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 Medical Encyclopedia

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

  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 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 …

  8. 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...

  9. 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 …

  10. Essential Vitamins: Importance, Deficiencies, and Solutions

    Aug 22, 2023 · Learn about the 13 essential vitamins your body needs for proper function, their roles, and how to get them through a balanced diet. Plus, the risks of vitamin deficiencies and how to …