Vitamin

Vitamins are organic molecules that are essential to an organism in small quantities for proper metabolic function. These essential nutrients cannot be synthesized in the organism in sufficient quantities for survival, and therefore must be obtained through consumption. For example, vitamin C can be synthesized by some species but not by others; it is not considered a vitamin in the first instance but is in the second.

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.

Back to Nutrition & Recovery →

Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 3.0

SPORTQA

Train smarter — sports guides, science-backed tips, and the calculators every athlete needs.

Get new guides by emailOccasional emails. No spam. Unsubscribe anytime.

InformationAbout Contact Privacy Policy Terms of Service Disclaimer Affiliate Disclosure Cookie Policy

Every species, image, fact, and figure is drawn from Wikipedia and Wikimedia Commons, used under public-domain and Creative Commons licenses. No content is AI-generated.