Dogs love food and are always ready to catch their next snack. To keep them happy, many pet parents give them a bite of whatever they are eating. However, doing so can be dangerous. Many foods that are nutritious for humans tend to be unsafe and, in many cases, downright fatal for dogs. Here are some common foods that are unsafe for dogs and should be kept away from their reach. Ice cream Many people believe dairy products are healthy for pets. However, there are several exceptions to that, especially in the case of dogs. For instance, ice cream is delicious but not very safe for dogs. Ice cream can be a significant health hazard for canines because their digestive system cannot process dairy-based foods well. Their bodies cannot manufacture the enzyme that breaks down the sugar heavily found in milk. When someone feeds their dog a cup of ice cream, their pet will likely vomit it out entirely due to the large number of gastrointestinal complications the food creates in their body. Canines may also develop allergy symptoms and itching after eating dairy-based products. Avocados Avocados contain a high percentage of persin. While this toxin does not harm humans, it can be deadly for dogs.