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 …
Vitamin | Definition, Types, & Facts | Britannica
Nov 22, 2025 · What are the vitamin requirements in human beings? There is no uniform agreement concerning vitamin requirements for humans, but recommended daily vitamin …
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.
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 …
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 …
What are vitamins, and how do they work? - 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.
What To Know About Vitamins and Minerals
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.