Like I said, your dog is past the point where the calcium/phosphorus ratio needs to be worried about. So I wouldn’t worry about that. I like the Fromm Gold and most large breed adult formulas because they are lower in fat than regular adult formulas which helps keep my pitbull at an ideal weight when its summer and humid down here in the south.
I would say they are important. Some large breed formulas contain trace amounts of glucosamine and MSM. Fromm Gold has chicken cartilage as the natural source of both. However, some argue that there isnt enough of an amount of either in foods to make it theraputic. Others say its made a huge difference in their dog. I feel that excersize is the key to keeping joints mobile, but when they do get older a supplement can be useful too aside from continuing regular excersize.
