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 …

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 …

Sep 20, 2025 · Vitamins are usually designated by selected letters of the alphabet, as in vitamin D or vitamin C, though they are also designated by chemical names, such as niacin and folic acid.

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 …

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.

Jun 12, 2025 · Vitamin deficiencies are when you don’t have enough of certain nutrients. These deficiencies are usually treatable and often preventable with a balanced diet.

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.

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Find out about common vitamins and minerals, including what they do, how much you need, and how to ensure you get enough.

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.