Chocolate
Three ingredients in chocolate can cause poisoning: methylxanthines, theobromine, and caffeine. Unsurprisingly, many cases of accidental ingestion occur during the holidays.
Raisins & Grapes
The toxicity of raisins and grapes stems from their tartaric acid content. It is the most prevalent acid in these fruits. Ingestion by dogs can cause liver damage and kidney failure.
Citrus Fruits
All women just look so good in them, no matter how out-of-shape you think you look or feel." — Mark, 31
Starfruit
The starfruit is the quintessential exotic fruit. Hailing from Southeast Asia, it is delicious and relatively low in sugar. Unfortunately, it can be problematic for dogs and people.
Fruit Pits
It may surprise you to learn that popular fruits like apricots, cherries, peaches, and apples can be poisonous if you eat the pits.
Foods High in Oxalic Acid
Oxalic acid is the proverbial double-edged sword. It exists in highly nutritious foods, like almonds.
Garlic, Onion, Leeks, Green Onions, & Chives
Onion is the worst one of the lot. The problem arises from each vegetable’s content of aliphatic sulfides and sulfoxides.
Avocado
Avocados being on the list might surprise you. Other than the large pit and its fat content, it doesn’t seem like a harmful food.