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

    Nov 22, 2025 · What are vitamins? Vitamins are any of several organic substances that are necessary in small quantities for normal health and growth in higher forms of animal life. They …

  2. Vitamin - Wikipedia

    Vitamins are organic molecules (or a set of closely related molecules called vitamers) that are essential to an organism in small quantities for proper metabolic function. These essential …

  3. What Are Vitamins? - Healthline

    Nov 29, 2023 · Vitamins are nutrients that are found in the foods we eat. They’re needed for functions such as growth, metabolism, and nervous system activities. Often, a health …

  4. What To Know About Vitamins and Minerals - Cleveland Clinic …

    Sep 16, 2024 · Vitamins are made by plants and animals, while minerals come from the soil and water — both of which are essential for our bodies.

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

    Sep 4, 2025 · Vitamins are essential nutrients that you must obtain through your diet. The two types of vitamins, fat-soluble and water-soluble, are needed for many vital bodily processes, …

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

    Oct 5, 2023 · Vitamins are essential nutrients that mainly come from foods. Each performs various roles in the body, and deficiencies of different vitamins can harm health in different ways.

  7. Vitamins – Definition, Functions, and Importance

    Sep 23, 2025 · Vitamins are organic compounds that living organisms require in small amounts for the normal growth, metabolism, and health. Unlike carbohydrates, proteins, and fats, …

  8. 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 …

  9. 10 Most Important Vitamins and What They Do for Your Body

    Oct 5, 2025 · In this article, we will explore the 10 most important vitamins, their functions, their sources, and why they are so critical for survival. Along the way, we’ll uncover how these …

  10. Vitamins: MedlinePlus Medical Encyclopedia

    Jan 21, 2025 · There are 13 essential vitamins. This means that these vitamins are required for the body to work properly. They are: Vitamins are grouped into two categories: Fat-soluble …