hello, i have 2 questions i was hoping someone could help me out on: 1) is there any measured benefit to adding glucosamine supplementation to, oh say, eagle pack large breed puppy formula? this is a large breed puppy that is almost 5 months old. if so, how much supplmentation is recommended? 2) does anyone have any experience using aloe vera juice added to the drinking water to help with itching/possible seasonal allergies? if so, how much juice-to-water? thanks.