Sources: American Society for the Prevention of Cruelty to Animals and The Humane Society of the United States
• Alcohol
• Apple seeds
• Avocado
• Baking powder
• Baking soda
• Bones and fat from meats
• Caffeine
• Candy, gum and drinks containing the sweetener Xylitol
• Chives
• Chocolate containing theobromine (found in most chocolate)
• Citrus
• Coconut, coconut oil and coconut water
• Dairy products
• Fruits with pits including apricots, cherries, peaches, persimmons and plums
• Garlic
• Grapes and raisins
• Hops
• Leaves of mushroom, potato, rhubarb and tomato plants
• Medications for humans
• Mustard seeds
• Nuts including almonds, macadamia, pecans and walnuts
• Onions
• Raw eggs
• Raw meat and fish
• Raw potatoes
• Salt
• Spices
• Sugary foods and drinks
• Yeast dough