Royal jelly, also known as royal jelly, royal jelly, royal jelly, and royal jelly, is the secretion of pharyngeal glands of young worker bees that cultivate larvae in bee nests, and it is the food for the larvae to become queen bees, and it is also the food for the queen bees for life. Royal jelly is a kind of milk secreted by young and middle-aged bees after eating pollen. This kind of milk, like mammalian milk, has great nutritional value and immune function, and contains extremely high longevity factors. Bees and queen bees are the same in the egg stage. Eat royal jelly for three days after hatching, and then eat honey and pollen to grow into a queen bee. After hatching, they have been eating royal jelly and growing into queen bees. The life span of bees is one to six months, while the queen bee usually lives for five to seven years because she has been eating royal jelly. The color of royal jelly varies slightly according to the pollen eaten by bees, and is generally divided into milky white and yellowish.