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•It decreased fat accumulation in mice fed high-fat diets.
•It lowered the weight and fat content of mouse livers. Though, future research is needed to determine whether this might apply to people with fatty liver disease.
•Topical raspberry keytones may improve skin elasticity and increase hair growth in people with hair loss.
•Raspberry ketones are used widely in food, cosmetics and perfumes. Although no specific risks have been identified to date, individuals should remain alert to possible allergic reactions to the products they’re in.
•Of greater concern, no studies have been undertaken to assess for weight loss in human subjects. Studies of mice and rats showed weight loss, or decreased weight gain with overfeeding.
•Considering its cost and the lack of sufficient research to support its weight loss claim, we recommend greater study of raspberry ketones before its use becomes widespread.
The bottom line:
While raspberry ketones show promise for aiding weight loss efforts, there is not enough evidence for us to recommend its use. If you do elect to try it, please discuss your decision with your doctor, and observe carefully for any changes to your health. This supplement was reviewed and evaluated by the Cleveland Clinic Wellness Prescriptive Wellness Committee. Learn more about the committee and read other supplement reviews.