I can testify to the Glucosamine, for I have used it 2 years. I buy the glucosamine from the Horse and Feed Store, which is human grade to use also. I love the stuff, I find drinking it in o.j. juice or even grape. I had bad knees and now they feel 100% better. my nails were even stronger! Marie and her 8 Most Wonderful Fur Kidlets (whom are MAD at me, now in the cage at night, to reduce the poopies on the floor and get a good night sleep) [Posted in FML issue 4168]