Due to their smaller size, alcohol has a much stronger and potentially deadly effect on dogs and cats. Dogs are often attracted to the sweet taste of alcoholic drinks like eggnog.
While the flesh of apples is safe for dogs, the core and seeds are not, as they contain cyanide. It's best to avoid these entirely.
Avocados contain persin, a toxin that can cause vomiting and diarrhea in dogs. Ingesting avocados can also lead to fluid accumulation in the lungs and chest.
Broccoli contains isothiocyanates, which can be harmful in large doses. Although small amounts might be safe occasionally, it's best to avoid broccoli due to the risk of obstruction from broccoli stalks.
Caffeine contains methylxanthines, which can cause severe symptoms like diarrhea, vomiting, seizures, and irregular heartbeats in dogs.
High-fat meats like ham, chicken, and turkey skin can cause acute pancreatitis, a life-threatening condition.
Chocolate contains theobromine and caffeine, both of which are toxic to dogs and cats. Dark and baker's chocolate are particularly dangerous.
The exact cause of toxicity in grapes and raisins is unknown, but they can cause kidney failure in dogs.
Macadamia nuts can cause weakness, overheating, and vomiting in dogs. While the exact mechanism is unclear, they are highly toxic.