While canines can technically eat potatoes, they should abstain from eating the green parts or any solanine-containing potato skin as it can be toxic. This usually happens when the potato is consumed raw. Solanine is a natural glycoalkaloid poison found in certain plants and can be particularly dangerous for dogs if consumed in large amounts. Generally speaking, even a small amount like 5 to 20 milligrams of solanine can be toxic for dogs, depending on their age and size. As such, it’s always best to avoid feeding your pet any part of the potato plant with visible signs of greening (which can indicate an unnatural accumulation of alkaloids) or to simply cook the potato before feeding it to your dog. By being aware about solanine toxicity in dogs, you can ensure that your canine remains safe and healthy.