He's gone under 7 pounds and he feels great! Never underestimate the effects of a small amount of weight gain in your dogs. Just like in people, weight gain has detrimental effects on dog's muscles and joints, blood sugar levels, organ function, and overall metabolism. Piglet went from 6.7# to 7.5# over the last few months. He became extremely lethargic, sleeping his days away. Over the past 2 weeks, as he's lost those extra ounces, he's become extra active and happier than we've ever seen him.