I have an appointment with Dr. Quack, my personal physician, in a couple of weeks and will ask him. Dr. Q never saw a food supplement he did not like so... He's pretty good with such things, but the warning label flags HBP and Blood Glucose, and I'm borderline HBP and sort of borderline BG so...
I have had some serious trigger finger and the death grips on the bike don't help. joints don't feel bad but if I'm cycling 100 miles a week one gotta wonder if the warranty will run out...