
Vitamin - Wikipedia
Vitamins have diverse biochemical functions. Vitamin A acts as a regulator of cell and tissue growth and differentiation. Vitamin D provides a hormone-like function, regulating mineral metabolism for …
Vitamins and Minerals From A to Z - WebMD
Aug 23, 2022 · One type comes from animal sources of food. It helps you see at night, make red blood cells, and fight off infections. The other type is in plant foods. It helps prevent damage to cells and an …
Vitamin | Definition, Types, & Facts | Britannica
Feb 14, 2026 · What are the vitamin requirements in human beings? There is no uniform agreement concerning vitamin requirements for humans, but recommended daily vitamin intakes are …
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 …
Vitamins and Minerals - Cleveland Clinic
Oct 1, 2025 · While it isn’t a vitamin, experts often group choline (pronounced “KO-leen”) in with them. It’s an essential micronutrient that works similarly to certain vitamins.
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 …
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-promoting diet …
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 vitamins are …
Vitamin and Mineral Supplement Fact Sheets - Office of Dietary ...
Very few foods naturally have vitamin D. Fatty fish such as salmon, tuna, and mackerel are among the best sources. Fortified foods like milk provide most of the vitamin D in American diets.
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 …