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The randomized, double-blind, placebo-controlled trial enrolled 70 obese but otherwise healthy subjects.
An eight-week study on a weight-loss supplement showed significant improvements in body composition and waist and hip girth. The dietary supplement contained raspberry ketone, caffeine, capsaicin, garlic, ginger, and the Advantra Z brand of bitter orange (Citrus aurantium). The study was published in the April 2013 issue of the Journal of the International Society of Sports Nutrition.
The randomized, double-blind, placebo-controlled trial enrolled 70 obese but otherwise healthy subjects. In addition to taking either placebo or the supplement, subjects ate a calorie-restricted diet and received exercise training.
Researchers said they observed significant differences in body weight, fat mass, lean mass, waist girth, hip girth, and energy levels for those taking the supplement versus those taking placebo. As such, they concluded, the supplement “is a safe and effective adjunct to an eight-week diet and exercise weight-loss program.”
“Numerous natural products are marketed and sold claiming to decrease body weight and fat, but few undergo finished product-specific research demonstrating their safety and efficacy,” the researchers added.