Asparagus – Hard to eat raw and when cooked loses its nutrients.
Avocado – are too much for a dog to handle as it contains persin, a toxin that often causes vomiting and diarrhea in dogs.
Cherries -cherry plants contain cyanide and are toxic to dogs.
Grapes - and raisins proved to be very toxic for dogs no matter the dog’s breed, sex, or age.
Mushrooms – not worth the risk so skip out on the fungi all together.
Onions - leeks, and chives are part of a family of plants called Allium that is poisonous to most dogs.
Tomato plants contain a few components that are harmful. Ripe tomatoes are considered nontoxic to dogs and can be fed in moderation as an occasional treat. Unripe tomatoes and tomato plants, on the other hand, can be toxic. Fence off your garden area, both your dog and your tomatoes will thank you.
Dogs can’t eat chocolate yet it remains the most common causes of poisoning in dogs.
Be on the lookout symptoms of chocolate poisoning which include vomiting, diarrhea, pacing, panting, and shaking. More serious cases might cause an irregular heart beat, seizures or even death. If you think your dog has eaten any chocolate, do not wait to go to the doctor.
Xylitol is an artificial sweetener found in products such as gum, candy, mints, toothpaste, and mouthwash. Xylitol is harmful to dogs because it causes a sudden release of insulin in the body that leads to hypoglycemia (low blood sugar). Xylitol can also cause liver damage in dogs. Within 30 minutes after eating, the dog may vomit, be lethargic (tired), and/or be uncoordinated. However, some signs of toxicity can also be delayed for hours or even for a few days. Xylitol toxicity in dogs can be fatal if untreated. It is unknown whether xylitol is toxic to cats.