I googled 'citrus bergamot research' and came up with a long list of studies done on the citrus bergamot essential oil. One of them was a study of adding the oil to chicken feed, and the yolk of those chickens' eggs had a markedly reduced amount of cholesterol and the shell was stronger. I was surprised that no human studies showed up and no studies on the supplement in pill form. My son in Australia has been using the citrus bergamot for years on the advice of his physician, who was involved in some sort of research. My own experience has been a marked reduction in triglycerides and increase in "good" cholesterol. The reduction in "bad" cholesterol was not as significant.