Green Coffee

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Weight loss

In 2011 Gastroenterology Research and Practice published a meta-analysis of 3 studies which found that green coffee extract had a moderate effect on weight loss when compared to a placebo. However, the authors note that more rigorous trials are needed due to poor methodological quality and high risk of bias in the studies analyzed. [Source]
In 2007 The Journal of International Medical Research published a double-blind study involving 30 overweight volunteers which found that after 12 weeks, consumption of chlorogenic acid enriched (green) coffee led to a 12 lb average weight loss compared to less than 4 pounds in the normal instant coffee group. [Source]

In 2006 BMC Complementary and Alternative Medicine published an animal study which found that green coffee bean extract prevented weight gain and fat accumulation in mice – with caffeine in particular shown to be a suppressor of fat absorption. [Source]
In 2016 the Asian Pacific Journal of Tropical Medicine published an animal study in which obese mice gained significantly less weight when consuming green coffee bean extract along with a high-fat diet compared to mice fed a high-fat diet alone. [Source]

In 2014 Biomed Research International published a 2-week pilot study which compared the effects of green coffee to black coffee in 20 healthy subjects. The results showed that green coffee reduced systolic blood pressure and abdominal fat more than black coffee. [Source]

In 2006 Clinical and Experimental Hypertension published a double-blind, placebo-controlled trial involving 28 individuals which found that, compared to a placebo, 140 mg/day chlorogenic acid significantly reduced blood pressure in hypertensive individuals. [Source]
In 2002 Hypertension Research published an animal study which found that green coffee extract reduced blood pressure in hypertensive rats. [Source]

In 2008 The Journal of Nutrition published a study in which blood tests taken from 10 healthy subjects 8 hours after consumption of green coffee extract (containing 170 mg of chlorogenic acid) showed that chlorogenic acid compounds in green coffee are highly absorbed and metabolized in humans. [Source]