When "Brownie" the eight month old chocolate Labrador puppy came to stay with us she was severely undernourished. That poor little girl looked as if she hadn't had a decent meal in weeks. When we first started feeding her good food she got severe diarrhea and then she got completely constipated. Finally after a few weeks of see-sawing back and forth her stomach finally adjusted to eating real food and she started to put on some weight. Now Brownie looks like a totally different dog and is beautiful.