Chances are, you’ve sampled a bit of bread dough while baking and haven’t been worse for wear. But be careful when giving it to Fido. Bread dough, depending on what kind you’re making, often has live yeast. And as it turns out, a dog’s stomach is the perfect environment for yeast to grow, which can make it difficult for dogs to breathe. And yeast can produce alcohol, making dogs prone to developing severe alcohol poisoning.