There are a few names for raspberry ketone: Cetona de Frambuesa, Cetone de Framboise, Raspberry Ketones, Red Raspberry Ketone, RK.
People use raspberry ketone orally for weight loss, obesity, and increasing lean body mass. Topically, raspberry ketone has been used for premature balding or alopecia. In foods and manufacturing, raspberry ketone is used as a fragrance and flavoring agent.
Author Kyoung Sik Park of the Nutrition & Functional Food Research Team, Korea Food & Drug Administration found that raspberry ketone behaves like capsaicin and synephrine of which its structure is similar. In his study it was found that raspberry ketone affects fat metabolism by stimulating fat breakdown, fatty acid oxidation, and the secretion of something called adiponectin.
More adippnectin is good because it reduces circulating free fatty acid levels by enhancing skeletal muscle fat oxidation. People that are obese have a reduced level of adiponectin.
Another study in the Journal of Life Science mice were feed a high-fat diet containing raspberry ketones. The raspberry ketones prevented the high-fat-diet-induced increases in body weight and the weights of the liver and fat tissues.
It was concluded that raspberry ketone prevents and improves obesity and fatty liver. It is believed to work by increasing norepinephrine-induced lipolysis in white fat cells. This makes since because raspberry ketone is similar in structure to synephrine, which would work via a similar mechanism of action.
Unfortunately there are only two clinical studies to that hint at the fat-burning properties of raspberry ketone. If you look at the two chemical structures below you can see that they have similarity to one another. Because they look similar to one another I believe they behave in quite the same manner within the body. Synephrine is known for inducing lipolysis and is a stimulant. Raspberry ketone is also known to make people jittery like a stimulant, proving that they are acting in a similar manner.
People have reported good benefits, losing fat and their appetite from raspberry ketones. Many people have reported this. Reported losses of body weight are about 10 pounds after finishing the first bottle. Other people reported losing 10 pounds in their first two months of using it.
Other reported benefits are an increase in energy with raspberry ketones helping you beat fatigue. It is no doubt a stimulant in my opinion and will work like a stimulant by acting on the central nervous system. It may even help your attention span not unlike Adderall XR would. People also combine it with green coffee bean extract for further weight loss.
1. Park KS. Raspberry Ketone Increases Both Lipolysis and Fatty Acid Oxidation in 3T3-L1 Adipocytes. Accessed 28 Sep 2014. Available at: http://www.radiantnutra.com/wp-content/uploads/2012/06/Raspberry-ketone-increases-both-lipolysis-and-fatty-acid-oxidation-in-3T3-L1-adipocytes.pdf
2. Morimoto C, Satoh Y, Hara M, et al. Anti-obese action of raspberry ketone. Life Sci 2005. 27;77(2):194-204.