Fact or Fiction: Raspberry Ketones

As per usual, the diet and weight loss industry in conjunction with Dr. Oz are onto the next big quick-fix craze, “raspberry ketones.”  Products claim this “fat-burner in a bottle” enables the body to "burn fat easier" by stimulating the production of adiponectin.  Furthermore, they claim that  “research has shown that raspberry ketones can help in your weight-loss efforts, especially when paired with regular exercise and a well-balanced diet of healthy and whole foods”.  Sounds pretty darn good doesn't it? Let’s break down the argument and see what’s really going on here.

First off, what is a raspberry ketone? 
The raspberry ketone is actually the primary aromatic compound (or phenolic compound) of red raspberries.  It is used in perfumery, cosmetics, and as a food additive to impart a fruity odor.

So what does the smell of raspberries have to do with making me skinny?
The research is stating that in TWO mice studies they found that extremely high doses of raspberry ketones (2% of the mouse’s body weight) increased the production of adiponectin and lypolosis (fat breakdown) in mice who were fed high fat diets. 

If there’s research doesn’t that mean that it works?
Two studies on mice who were fed huge amounts of raspberry ketones; the equivalent to feeding 3 lbs of raspberry ketones to a 150 lb person. Furthermore when attempting to reproduce results with humans it was found that no effects on body weight were observed with doses up to 200 times greater than the estimated intake in humans. 

So do raspberry ketones = weight loss?
If you are a mouse maybe! If you are a human, then probably not so much.

What does = weight loss?
GROUND BREAKING NEWS:  unless you have an endocrine disorder, eating a healthy calorie controlled diet with a consistent exercise routine is the most effective weight loss method.

So save your money and always do some research before believing what you see on TV because if it sounds too good to be true…it usually is!


A long time athlete and health advocate,  Dr. Kumentas’ goal is to help her patients become excited about making positive lifestyle choices in order to enjoy healthier, happier lives.  Her driving force is a passion for healing the whole person on a physical, emotional, and spiritual level using carefully selected natural therapies, fitness, and integrated medicine.  She truly believes in the importance of practising what you preach and investing in your health.  
Dr. Nadia Kumentas practices at Zen Beginnings Wellness Centre in Toronto and has a special interest in dermatology, woman’s health, and pain management.

To learn more about Dr. Nadia Kumentas visit www.DrNadiaKumentas.com or contact her at nadia@zenbeginnings.com.

Gaunt, I. F.; Sharratt, M.; Colley, J.; Lansdown, A. B. G.; Grasso, P. (1970). "Acute and short-term toxicity of p-hydroxybenzyl acetone in rats". Food and Cosmetics Toxicology 8 (4): 349–358.
Park, KS.  (2010). “Raspberry ketone increases both lipolysis and fatty acid oxidation in 3T3-L1 adipocytes.” Planta Med. Oct;76(15):1654-8.
Morimoto C, Satoh Y, Hara M, Inoue S, Tsujita T, Okuda H (2005). "Anti-obese action of raspberry ketone". Life Sci. 77 (2): 194–204.
Image from: www.corbis.com


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