Dr Joel Wallach. Youtube him. Look for a Harvard study that found 1-2 tablespoons of ground chicken cartilage for 30 days, something like that.
if it’s the chicken business, don’t waste your money. A friend, now died, had that series of chicken cartilage shots and all is did was use up her savings. Snake oil.
Careful... Dr. Wallach is not a medical doctor. He’s a veterinarian. Do a search on his name. I would not trust any recommendation he makes.
#3 If you use ground chicken cartilage for the knees you will be scratching around the barnyard....