I know a lot of people here use the Oteo Bi Flex triple strength. Khan has been on it for years.
I have a thread a ways down, but it was about raw feeding. I wanted to post up a quick warning fr those of you who did not read that thread. Apparently Osteo Bi Flex has now come out with a couple new types which have vitamin D added to the pill. Vitamin D should not be supplemented at the huge I.U. now in those pills. So make sure you are getting the ones without vitamin D.
It took me 2-3 weeks to determine what was causing Khan's diarrhea and upset stomach. Fortunately at his weight it wasn't toxic doses, but it was enough to cause plenty of diarrhea.
Just thought I would share so no one else or their dog has to go through the tummy issues Khan did.