Oh no! You just caught your dog snout-deep in a pizza box, and now you're worried if dogs can eat pizza? If your dog eats pizza crust, will they get sick? Is tomato sauce okay for them to eat? Whether your dog just ate your leftover crusts, or they wolfed down an entire pie, including the toppings, here's what you should know.

Are Pizza Ingredients Bad for Dogs?

Cheese

Even with low-fat cheeses like mozzarella, the traditional pizza topper, it's never good for them to have too much cheese. Cheese is typically high in fat content and calories, which can lead to feeding too many calories to your pet.

Sauce

What if your dog just got a big lick of marinara? The good news is that sauce is often made from ripe tomatoes, which are fine for dogs to eat. It's the green parts, like the leaves and stem, that make dogs sick. However, pizza sauce isn't made from tomatoes alone. Some of its other ingredients, like garlic and herbs, could be harmful to your dog. Additionally, many store-bought pizza sauces contain added sugar. According to the RSPCA, an unhealthy diet can contribute to obesity, which can in turn put your pet at greater risk of developing diabetes or other health problems.

Crust & Dough

If your dog ate pizza crust, there's room for concern. The crust may contain ingredients that are dangerous for dogs to consume, such as onions, garlic and herbs.

Eating raw pizza dough is a more urgent matter. If your dog sneaked some of your uncooked homemade pizza, head to the veterinarian or emergency animal clinic right away. Raw yeast dough can expand in your pet's stomach, causing serious breathing difficulties and potentially causing tissue tearing. According to The Kennel Club, raw bread dough may even cause your dog to become intoxicated. This is due to the ethanol by-product that yeast produces.