Vitamins’ Old, Old Edge
- Kind
- Internet Article
- Date
- December 9, 2013
- Publisher
- New York Times
- Retrieved
- Dec 10, 2013
1 meme from this reference
Vitamins Come from Living Things
Every vitamin is made by living cells — either our own, or in other species. Vitamin D is produced in our skin, for example, when sunlight strikes a precursor of cholesterol. A lemon tree makes vitamin C out of glucose. Making a vitamin is often an enormously baroque process. In some species, it takes 22 different…