Potato poisonings have occurred both in dogs and people from the solanum alkaloids found in green sprouts and green potato skins which occurs when the tubers are exposed to sunlight during growth or after harvest. Cooked, mashed potatoes are fine to eat, but keep the raw ones away from your dog. Turkey skin has been linked to acute pancreatitis in dogs and must be avoided because of its high fat content. Nuts are not good for dogs in general, since their high phosphorous content may lead to bladder stones. The sweet taste lures them in and just a lick or two can cause death.
Early treatment is critical to try and prevent fatal kidney failure.
Antifreeze is highly toxic. Be sure to keep your pets away from it. Anytime a dog or cat is left in a garage, the potential for death by antifreeze poisoning is present. If you see a greenish liquid in your garage or on the street, keep your pet away and clean it up thoroughly. Some plants hide deadly poisons in their leaves, seeds, flowers or berries.