Basset Hound feeding concerns?

A friend recently gave us his Basset Hound and I have been reading about the best care for them. I have run across a cpl websites that say that you should not feed table scraps, that feeding table scraps will cause bloat and could cause death. Is this true because my in-laws are always feeding him scraps even when I ask them not to. And also they feed him a lot of table scraps that have a large amount of garlic and onions. And give him all the fatty drippings off the meat can this harm him also.
When we got the dog he was severally under weight we got him to gain back some but we keep feeding him and he will not gain no more. You can see still see his ribs a little and his stomach is still sucked in slightly. He is about 16 weeks old, should be be looking like this. When we got him I could wrap both hands around his stomach and my fingers would touch now I have room between my hands but he still wont get no bigger.
Thank You,
Brandy

NO, he should not look like that! My mom raises basset hounds and they should be fat puppies, well hers always are. They should look like healthy chunky puppies and no scraps wont hurt these dogs but you should wait till he is older and you should take him to the vet and have him checked out just in case. My vet always tells me that Vienna sausage(not sure how to spell it) or SPAM is good for dogs to put weight on them cause it is full of fat. My dog was sick and he lost so much weight and after he got better he wouldn't gain no weight so my vet told us to feed him the Vienna sausage and spam and he gained all his weight back in like a month. Then we went back to feeding his regular food and every now and then we will mix some of the spam or sausage in his food and his weight stays the same, but you should try talking to your vet just to be sure.