Green coffee bean extract has been available in dietary supplements for quite some time, but despite the hype and popularity of this ingredient, there’s little science to support its use as a weight-loss aid. Green coffee beans are the raw, unroasted seeds or “beans” of the Coffea plant. Similar to your morning cup of coffee, they contain caffeine in addition to a chemical called chlorogenic acid. The difference, though, is that green coffee beans contain more chlorogenic acid because roasting reduces the amount of chlorogenic acid in coffee beans.

Chlorogenic acid supposedly offers some health benefits, but don’t believe everything you hear (or read) about green coffee beans supplements for weight loss; there just isn’t enough evidence to back up these claims. In fact, the Federal Trade Commission (FTC) charged a company for using deceptive weight-loss claims to market a green coffee bean supplement. Read more about this in FTC’s Press Release.

Updated 26 February 2019

References

Meng, S., Cao, J., Feng, Q., Peng, J., & Hu, Y. (2013). Roles of chlorogenic acid on regulating glucose and lipids metabolism: A review. Evidence-Based Complementary and Alternative Medicine, 2013, 1–11. doi:10.1155/2013/801457

Onakpoya, I., Terry, R., & Ernst, E. (2011). The use of green coffee extract as a weight loss supplement: A systematic review and meta-analysis of randomised clinical trials. Gastroenterology Research and Practice, 2011, 1–6. doi:10.1155/2011/382852

Revuelta-Iniesta, R., & Al-Dujaili, E. A. S. (2014). Consumption of green coffee reduces blood pressure and body composition by influencing 11β-hsd1 enzyme activity in healthy individuals: A pilot crossover study using green and black coffee. BioMed Research International, 2014, 1–9. doi:10.1155/2014/482704