Can drinking coffee can prevent gallstones? Can supplements help?

had my gall bladder out at 40 years of age, had been drinking at least 2 cups of coffee every morning, sometimes more, since age of 17! Have a jar with 7 gallstones, brownish rocks. Very painful!

I have found that fenugreek capsules helped. I saw some research about it being used on rats for gallstones and thought if its good enough for the rats, I will try it! https://www.ncbi.nlm.nih.gov/pubmed/21215764 I got gallstones due to being on a very low fat raw vegan diet and losing weight fast. I slowly started to increase the fat in my diet which stimulated the gallbladder.. I got ultrasound scans to see the size of stones and make sure that I had no other signs of disease etc. I found that the gallstones were just small enough to be expelled and via several nasty gallstone attacks, I got rid of some of them! (If they had been really big, it would have been a different matter!) the others simply dissolved over time. I now eat a much higher fat, low carb diet which has put on weight but at least I don't have the gallstones any more! And I still take fenugreek capsules though not as many as I did at the height of the gallstones. The product I took was Solgar fenugreek, and I took 2 with each meal but now as a maintenance dose, I take 1 with each meal. I must stress though that the normal dose is only 1 capsule per day, and I may further reduce my dose in due course. I am not suggesting that others take as many as I did - each person must experiment for themselves and do their own research to ensure that they are safe! (I have no financial interest in solgar!)