My Puddy LOVES salt and vinegar potato chips. I give her teeny weeny bites and Dr. Lee said "Hey, the salt will make her drink more water and she needs the fluids." But I was giving them to her because I feared she wouldn't be around much longer and I wanted to give her anything she wanted and that she could keep down. She still loves them and, although I don't buy them that often, when I do and she hears me rustling that bag, she comes running. Give your baby what he wants. At this point, it couldn't hurt, could it?