Raspberry Ketone has been touted as the next all natural weight loss supplement, however there is no clinical evidence that raspberry ketone effects weight loss at all.   Raspberry ketone is simply the phenyl compound found in raspberries that give an aromatic smell to raspberries.  It isn't new, the FDA recognized the ketone in the mid 1960's.

Raspberry ketone's have been used for:  perfumes, cosmetics, food additives and now weight loss supplements.  Natural raspberry ketone is rare and expensive so manufactures have taken to chemically and biologically synthesizing it.  If your using an all natural advertised product chances are it isn't natural but synthesized.
If weight loss is a goal there are proven natural supplements that would be a better choice.  Traditional methods of diet and exercise would have better results.

Raspberry ketone also triggers a release of norepinephrine (stress hormone). Because noropinefrina releasing a thermogenic effect occurs. This triggers the release of glucose from energy stores and increases the breakdown of triglycerides into free fatty acids. Once this is completed, the lipase takes over and breaks the grease so that it can be digested in the intestine. Raspberry ketone suppresses appetite and increases body temperature causing an increase in basal metabolism.

Therefore, raspberry ketone relates to a product capable of increased lipolysis (breakdown of fat cells). Thanks to this effect has become a very popular supplement for athletes and bodybuilders who want to reduce body fat and increase definition.

Due to the action of raspberry ketone in free fatty acids, the ideal is to accompany weight loss diet including carbohydrates with low glycemic index, increased protein intake and include moderate amounts of healthy fats in the form of oil fish, olive oil or macadamia nut oil. Taking care to keep calories low base metabolic needs.