Dosage
There is no clinically validated dose. Supplement labels suggest 100 mg to 1,400 mg per day, but there is no human evidence to support any specific amount. Ask your healthcare provider before any use.
Ingredient guide
Raspberry Ketones: Weight Loss Claims and Evidence
Raspberry ketones are aromatic compounds from raspberries, heavily marketed for weight loss. There is no human evidence that raspberry ketone supplements cause weight loss. Animal studies used extreme doses with no relevance to human use.
Insufficient evidenceBenefits
- Found naturally in small amounts in raspberries and other fruits.
- Animal studies at extreme doses showed effects on adipose tissue.
Evidence summary
What raspberry ketones are
Raspberry ketones are aromatic compounds responsible for the smell of raspberries and a few other fruits. They became famous after appearing on US television in the early 2010s as a so-called fat burner. The dose used in animal studies was extreme, with no relevance to typical human supplement amounts.
What the human research shows
There is no human evidence that raspberry ketone supplements cause weight loss. While animal studies used extreme doses to suggest effects, doses commonly recommended in humans have no relevance to those findings. A case report links a raspberry-ketone weight-loss product with coronary vasospasm. We grade the human evidence as insufficient and the safety concerns as worth taking seriously.
Dosage & safety
Side effects
- Most common are jitteriness and a rapid heartbeat.
- May raise blood pressure.
- A case of coronary vasospasm has been reported with a raspberry-ketone weight-loss product.
Interactions
- No well-documented drug interactions, but stimulant effects may add to other stimulants.
Warnings
- Speak with a doctor before any raspberry ketone supplement use, especially if you have heart disease or high blood pressure.
- Be sceptical of raspberry ketone weight-loss claims, which lack human evidence.
- A case of coronary vasospasm has been linked to a raspberry ketone weight-loss product.
Products with this ingredient
Related ingredient guides
Citations
- Do raspberry ketones really work? A detailed review healthline.com
- What are raspberry ketone's main benefits? (Examine) examine.com
Frequently asked questions
Do raspberry ketones work for weight loss?
There is no human evidence they do. The dramatic animal-study claims used doses far beyond what humans take.
Are raspberry ketones safe?
Possibly not. A case report links a raspberry-ketone product with a serious heart event. People with heart conditions should avoid them.