Chlorogenic Acid Extends the Lifespan of Caenorhabditis elegans via Insulin/IGF-1 Signaling Pathway  - J Gerontol A Biol Sci Med Sci. 2016 Jul 4 -  "Coffee and tea, two of the most popular drinks around the world, share many in common from chemical components to beneficial effects on human health. One of their shared components, the polyphenols, most notably chlorogenic acid (CGA), was supposed to account for many of the beneficial effects on ameliorating diseases occurred accompanying people aging, such as the antioxidant effect and against diabetes and cardiovascular disease ... We found that CGA could extend the lifespan of C. elegans by up to 20.1%, delay the age-related decline of body movement, and improve stress resistance"  - See  chlorogenic acid at Amazon.com .  Green coffee bean extract is 50% chlorogenic acid.

 Chemical in coffee may help prevent obesity-related disease - Science Daily, 11/14/14 - "chlorogenic acid, or CGA, significantly reduced insulin resistance and accumulation of fat in the livers of mice who were fed a high-fat diet ... which is found in great abundance in coffee, but also in other fruits and vegetables like apples, pears, tomatoes and blueberries ... CGA was not only effective in preventing weight gain, but it also helped maintain normal blood sugar levels and healthy liver composition ... CGA is a powerful antioxidant that reduces inflammation"