Coffee Health Benefits vitamin B2, or riboflavin - is naturally present in foods, added to foods, and available as a supplement. Bacteria in the gut can produce small amounts of riboflavin, but not enough to meet dietary needs. Riboflavin is a key component of coenzymes involved with the growth of cells, energy production, and the breakdown of fats, steroids, and medications. Most riboflavin is used immediately and not stored in the body, so excess amounts are excreted in the urine. An excess of dietary riboflavin, usually from supplements, can cause urine to become bright yellow. Lowers the Risk of Gallstones Coffee has certain found nutrients stimulates production of bio, the flow of bio, Stimulates cholecystokinin release,4 enhances gallbladder contractility, also the hormones that are controlling the Gallbladder helps the contraction & relaxation, So caffeine helps the bio that gets congested and can back up cause all sorts of pain in the Gallstone area. example sugar, syrup any type of pesticide that can put a huge strain on the gallbladder and your liver.