The compounds that give red raspberries their sweet scent, raspberry ketones are gaining popularity as a weight loss aid. Proponents claim that raspberry ketones (now sold in dietary supplement form) can help speed up weight loss by triggering the breakdown of fat cells.
To date, very few scientific studies have tested the health effects of consuming raspberry ketones. Some animal-based research suggests that raspberry ketones may offer anti-obesity benefits, but there's no evidence that raspberry ketones can help support weight loss in humans.
Raspberry ketones are sometimes said to be chemically similar to capsaicin, the compound that gives chili peppers their spicy kick. Preliminary research indicates that capsaicin may promote weight loss by curbing appetite and increasing the body's calorie-burning rate. Read the article: Raspberry Ketones for Weight Loss.