Raspberry ketone is a chemical from red raspberries (Rubus idaeus). It is most commonly used for weight loss and obesity. It is also used to increase lean body mass. Some people apply raspberry ketone to the scalp to improve hair growth.
Raspberry ketone is also used in foods, cosmetics, and other manufacturing as a fragrance or flavoring agent.
Raspberry ketone became popular for weight loss after it was mentioned on the Dr. Oz television show during the segment called “Raspberry ketone: Miracle fat-burner in a bottle” in February 2012. Even though it is touted as a “miracle” for weight loss, there is no reliable scientific evidence that it works for improving weight loss.
How does it work?
Raspberry ketone is a chemical from red raspberries that is thought to help for weight loss. Some research in animals or in test tubes shows that it might increase some measures of metabolism. It might also affect a hormone in the body called adiponectin. However, it is important to keep in mind that there is no reliable scientific evidence that it improves weight loss when taken by people.
- Hair loss (alopecia). There is preliminary evidence that raspberry ketone applied to the scalp might increase hair growth in men.
- Obesity. There is preliminary evidence that raspberry ketone plus vitamin C might decrease weight and body fat.
Side Effects & Safety
There isn’t enough information available to know if raspberry ketone is safe to take as a supplement. Raspberry ketone has never been scientifically studied in humans to determine if it causes side effects. However, there are some concerns about the safety of raspberry ketone because it is chemically related to a stimulant called synephrine. Therefore, it is possible that raspberry ketone might cause feelings of jitteriness, increase blood pressure, or rapid heart beat. In one report, someone who took raspberry ketone described feelings of being shaky and a pounding heart beat (palpitations).
Special Precautions & Warnings:Pregnancy and breast-feeding: There isn’t enough reliable information about the safety of taking monograph name if you are pregnant or breast feeding. Stay on the safe side and avoid use.
The appropriate dose of raspberry ketone depends on several factors such as the user's age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for raspberry ketone. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.