Royal jelly is a product secreted by the pharyngeal glands of the
feeding bees, who feed not only on the honey produced by the worker bees, but also on
pollen. It looks like a yellowish-white, semifluid paste, and has a characteristic
acid-aromatic taste; it is found in the royal cells, in other words those where the bees
raise the new queens. The name derives from the fact that it constitutes the essential
nutrition of the queens during the whole of their existence. The most important
constituent elements of royal jelly are: proteins, lipids, carbohydrates, colinergic
factors and vitamins.