To meet our publishing standards, please refrain from including the following in your review: Be sure to explain why you like or dislike the product and focus on the product's features. We value your input and look forward to hearing about your personal product experiences. SummaryĪlthough some studies in rodents show that raspberry ketones can protect against weight gain and fatty liver disease, these studies used massive dosages - much higher than you would get with supplements.Reviews containing references to a state of disease (e.g., pain, aches, inflammation, medicine replacement, cancer, cold/flu, arthritis, depression, insomnia, etc.) cannot be published. You would have to take 100 times the recommended amount in order to reach the equivalent dose. However, the study used excessive dosages. In another study in 40 rats, raspberry ketones increased adiponectin levels and protected against fatty liver disease ( 18). Note that the mice fed ketones did not lose weight - they just gained less than others. The mice in the raspberry ketone group weighed 50 grams at the end of the study, while the mice that didn’t get ketones weighed 55 grams - a 10% difference.
In one study, raspberry ketones were given to some mice fed a fattening diet ( 17). However, the results weren’t nearly as impressive as the supplement manufacturers would have you believe.
Raspberry ketone supplements exhibit promise in studies on mice and rats. While they show potential in test-tube studies, these results do not necessarily apply to humans. Raspberry ketones have a similar molecular structure as two known fat-burning compounds. Drinking coffee is also linked to higher levels ( 14, 15, 16). Keep in mind that there are natural ways to increase adiponectin that do not involve raspberry ketones.įor example, exercise can increase adiponectin levels by 260% in as little as one week. However, even if raspberry ketones raise adiponectin in isolated fat cells from mice, this does not mean that the same effect will occur in a living organism. Therefore, it seems that raising adiponectin levels could help people lose weight and lower the risk of many diseases. Studies demonstrate that people with low adiponectin levels are at a higher risk of obesity, type 2 diabetes, fatty liver disease and even heart disease ( 12, 13). Levels of this hormone increase when people lose weight ( 10, 11). People with normal weight have much higher levels of adiponectin than those who are overweight. Increased release of the hormone adiponectin.Īdiponectin is released by fat cells and may play a role in regulating metabolism and blood sugar levels.Increased fat breakdown - primarily by making the cells more susceptible to the fat-burning hormone norepinephrine.In test-tube studies of fat cells in mice, raspberry ketones ( 9): Therefore, researchers speculated that raspberry ketones could have the same effect ( 7, 8). Studies indicate that these molecules can boost metabolism. The molecular structure of ketones is very similar to two other molecules, capsaicin - found in chili pepper - and the stimulant synephrine. A synthetic version of it is used in cosmetics, processed foods and weight loss supplements. Raspberry ketone is the compound that gives raspberries their strong aroma and flavor. However, raspberry ketones have absolutely nothing to do with low-carb diets and will not have the same effects on your body. The appeal of this product is also due to the word “ketone,” associated with low-carb diets - which force your body to burn fat and elevate blood levels of ketones. The raspberry ketones you find in supplements are synthetically manufactured and are not natural ( 4, 5, 6). In fact, 2.2 pounds (1 kg) of whole raspberries only contains 1–4 mg of raspberry ketones. Only recently did they became popular as a weight loss supplement.Įven though the word “raspberry” may appeal to people, the supplement is not derived from raspberries.Įxtracting raspberry ketones from raspberries is extraordinarily expensive because you need 90 pounds (41 kg) of raspberries to get a single dose. It has a long history of use in cosmetics and has been added to soft drinks, ice cream and other processed foods as a flavoring.Īs such, most people already eat small amounts of raspberry ketones - either from fruit or as a flavoring ( 3). This substance is also found in small amounts in other fruits and berries, such as blackberries, cranberries and kiwis. Raspberry ketone is a natural substance that gives red raspberries their powerful aroma.
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