One clinically proven benefit of Royal Jelly is that it reduces cholesterol and therefore may protect the heart by lowering triglyceride and lipoprotein levels. Some common claims of other benefits include improvements in asthma, allergies, hormonal disorders, insomnia and stomach ulcers. Royal Jelly is also purported to aid in general healing, resolve skin disorders, regulate the immune system, improve diabetes and decrease inflammation, among other things, but these claims are not well supported by clinical trials as of 2015.
Royal jelly is a milky white secretion produced by worker bees. It is fed to all bee larvae for the first few days of their lives to stimulate growth and from then on is only fed to the queen. The queen eats nothing but royal jelly for her entire life. She lives 40 times longer than bees fed a regular diet, a fact which may have contributed to the concept of Royal Jelly leading to extended longevity.
Royal Jelly is commonly sold as a health supplement and may be found as an ingredient in cosmetic products, such as moisturizer and lip balm. It's used in traditional medicines in many parts of the world, including Europe and Asia, for conditions ranging from impotence to hair loss.
The health risks due to taking Royal Jelly supplements are considered to be minimal, though it's sometimes proposed that since the bees have to make much more Royal Jelly for commercial purposes than they would ordinarily, it is not truly a natural product. Another concern is the possibility of environmental contaminants, such as bacteria, fungus and pesticides, being present in the jelly.