I and many others have been taking it for over a year. It has been discussed with pharmacists, Dr's, etc. It has been so overwhelmingly effective for most of us. I have arthritis in my hands and could not close my hand to make a fist. Especially in the summer when I do a lot of flower and garden work with my hands. I now can close and make a fist and I do not have the constant pain. In the past year, this group of friends and I have aPssed on our success with Umary to many friends and family and ALL OF THEM are now using Umary. As for what FDA and other experts say, I take their advice with a grain of salt or maybe a lot of salt. There are so many discrepancies in their stories that it makes a lot of what they say questionable. If it helps you use it. If you have concerns about it talk to a Dr. or pharmacist. Many helpful meds come to us that are made in other countries although the FDA may say differently. As for harmful ingredients...that is a possibility. But then again so many meds that FDA approves have harmful ingredients. Don't buy meds from Canadian pharmacies because we don't know what their ingredients are.. the lists go on and on. FDA is a level of protection from harmful drugs but they also are not above using their "power" to also tout many untruthful comments.