Jan 2, 2026 · Vitamin, any of several organic substances that are necessary in small quantities for normal health and growth in higher forms of animal life. Vitamins generally cannot be synthesized in …

Most vitamins are not single molecules, but groups of related molecules called vitamers. For example, there are eight vitamers of vitamin E: four tocopherols and four tocotrienols. The term vitamin does …

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 …

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 stored …

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.

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 …

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 …

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.

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 can …

Jun 15, 2025 · Which dietary supplements are beneficial and which might be a waste of money? An expert gives facts on which vitamins and supplements work.