Pet Food How toxic is it? Usually Non Toxic Mildly Toxic Highly Toxic Most pet foods are edible for humans. The primary difference is ratios of protein and fat to carbohydrates. One time ingestion of pet food is usually well tolerated. Call 1 (800)-222-1222 Text 206-526-2121 Chat with a Poison Specialist Common brands & formats Hills Purina Blue Buffalo Royal Canin Kibble Wet food What to do If ingested Symptoms: upset stomach. What to do: food to settle the stomach.