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. Essential nutrients cannot be synthesized in the organism in sufficient quantities for survival, and therefore must be obtained through the diet.
Vitamins and Minerals From A to Z - WebMD
2022年8月23日 · Eat crimini mushrooms, peanuts, and peanut butter. This vitamin plays a role in more than 100 different reactions in your body. Some research has shown that B6 may help protect against memory...
Vitamin | Definition, Types, & Facts | Britannica
2024年10月25日 · vitamin, any of several organic substances that are necessary in small quantities for normal health and growth in higher forms of animal life. Vitamins are distinct in several ways from other biologically important compounds such as protein s, …
What Are Vitamins? - Healthline
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-promoting diet can provide all...
Vitamins: MedlinePlus Medical Encyclopedia
2023年1月19日 · Vitamins are a group of substances that are needed for normal cell function, growth, and development. 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 in the body's liver, fatty tissue, and muscles.
Vitamins and Minerals – The Nutrition Source
Vitamins are organic substances that are generally classified as either fat soluble or water soluble. Fat-soluble vitamins (vitamin A, vitamin D, vitamin E, and vitamin K) dissolve in fat and tend to accumulate in the body.
What are vitamins, and how do they work? - Medical News Today
2023年10月5日 · A vitamin is an organic compound, which means that it contains carbon. It is also an essential nutrient that the body may need to get from food. There are currently 13 recognized vitamins.
Vitamins & Supplements - WebMD
Get all the information you need on vitamins and supplements, from A to Z, with WebMD's comprehensive database. Our expert resources cover everything from health benefits to potential side...
What Are Vitamins, and Why Are They Important? - Verywell Health
2024年4月23日 · Vitamins are substances that are essential to human health. They are also nutrients and are found in many foods as well as dietary supplements. There are 13 vitamins, all of which you need regularly and in small amounts for various vital bodily functions. These vital functions support your health and help sustain your energy.
Vitamins - MedlinePlus
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.