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. Essential nutrients …

2022年8月23日 · 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 …

2025年6月27日 · 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 …

2023年11月29日 · 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 …

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 …

2024年9月16日 · Vitamins are made by plants and animals, while minerals come from the soil and water — both of which are essential for our bodies.

2024年4月23日 · There are two types of vitamins: fat-soluble and water-soluble. Fat-soluble vitamins are so named because they dissolve in fats, while water-soluble vitamins dissolve in …

2024年7月17日 · Vitamins are substances that your body needs to grow and develop normally. There are 13 vitamins your body needs; Each has specific jobs.

Vitamins are substances that are required in very small amounts, for healthy growth and development. They occur naturally in certain foods but are not synthesized by humans and …

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.