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Raspberry ketones have been called “the number one miracle in a bottle to burn your fat.”
An up-and-coming star in the dieting industry, raspberry ketones aided weight loss in preliminary scientific studies. Coupled with an endorsement on famed Dr. Oz’s national TV show, raspberry ketones skyrocketed in popularity.
But are raspberry ketones effective enough to stay in the spotlight?
What Are Raspberry Ketones?
Raspberry ketones give raspberries their aroma. This ingredient has long been used in cosmetics, perfume, and food to provide a fruity scent.
Raspberries themselves produce a low raspberry ketone yield. This is one reason raspberry ketones have been fairly expensive in the past.
Luckily, when produced synthetically, raspberry ketones have a significantly higher 99% yield at a fraction of the cost.
How Do Raspberry Ketones Work?
Raspberry ketones supposedly stimulate the central nervous system, raising norepinephrine and adiponectin levels.
Norepinephrine boosts metabolism through increased body temperature; adiponectin decreases the likeliness of glucose storage. As a combined result, fat is broken up and burned more effectively.
Are Raspberry Ketones Effective?
There are no human studies examining raspberry ketones benefits for weight loss, making it difficult to determine conclusively if raspberry ketones are effective.
However, preliminary animal studies look promising.
Mice fed a high fat diet were also given between 0.5 and 2% raspberry ketones. According to the researchers, raspberry ketones “prevented the high-fat-diet-induced elevations in body weight and the weights of the liver and visceral adipose tissues.”
In another study, mice given 10 µM raspberry ketones experienced increased lipolysis. Experts concluded lipid metabolism increased.
While consumers may be taking a chance with raspberry ketones without sound scientific backing, it seems to produce positive results for many dieters.
Raspberry Ketone Side Effects
There is not enough information to determine if raspberry ketone is safe to use in supplementation.
As a stimulant, it is possible raspberry ketone many cause side effects similar to other stimulants, such as jitteriness, increased blood pressure, or rapid heartbeat.
However, no studies conducted have reported adverse side effects.
Purchasing Raspberry Ketones
Many reputable supplement and health companies market raspberry ketones. On average, raspberry ketone products cost between $10 and $25.
If you decide to try raspberry ketones, you’ll be taking a shot in the dark. Due to high popularity, however, raspberry ketones may be worth trying if you’re looking for something new.
 “Raspberry Ketone.” Dr. Oz. Available from: http://www.doctoroz.com/videos/miracle-fat-burner-bottle
 Morimoto, Chie, Yurie Satoh, Mariko Hara, Shintaro Inoue, and Takahiro Tsujita. “Anti-obese action of raspberry ketone.” Life Sciences . Web. 16 July 2013. http://www.sciencedirect.com/science/article/pii/S0024320505001281
 Park, Kyoung. “Raspberry Ketone Increases Both Lipolysis and Fatty Acid Oxidation in 3T3-L1 Adipocytes.” Planta Medica 76.15 (2010): 1654-658. Web. http://www.ncbi.nlm.nih.gov/pubmed/20425690.