Hi Guys: Duke is almost 10 y/o. Would like to know what you lab owners suggest for OTC vitamins/supplements. Until now, he hasn't had a lot of exercise unless I was training for an elk hunt. But, that's changing as I'm on a 12 mo. program now which includes walking/hiking with him. He is very stiff and slow to recover from a good work out. I want him to be healthy and ready for Ducks 2017. Had x-rays a few months back, and hips are good.! Thanks.