i have a 7mo beagle hound mix. he weighs 50 lbs and has gained 7lbs since ive recued him. although he did have worms, which ive treated, i feel he should gain more weight. he gets wellness for puppys. 1 1/4 cup in the a.m., 2 cups in the p.m. also in the p.m. i add 1 tbl spoon diatomacous earth. he gets 45 min walks in the woods 4 or 5 days a week(weather) and these are high energy walks, i.e. runs up hill, down hill, jumping etc. anyway when i feed him its like he could eat twice as much as i give him. is it time to transition to adult food or just add more of what he has now? btw his stools seem loose and light most of the time. any help please.