Ingredient families

Nuts and Seeds

One nut is a poison, all nuts are fatty, and old nuts can grow dangerous molds.

Macadamia nuts

Macadamia nuts cause weakness, wobbling, tremors and fever in dogs. Merck reports signs after about 2.4 g per kg of body weight, usually within 12 hours.

Other nuts

Almonds, pecans and walnuts are high in fat and can cause vomiting, diarrhea and possibly pancreatitis (ASPCA).

Moldy nuts

Molds on walnuts, peanuts, dairy and food waste can make toxins that cause tremors and seizures in dogs (Merck). Fallen walnuts and old pantry nuts are the usual source.

Peanut butter

Some peanut and nut butters contain xylitol. Check the label before using it as a treat or pill pocket (FDA).

Seeds

Apple seeds and cherry pits contain cyanide compounds. Serve fruit flesh only (ASPCA, Pet Poison Helpline).

Keep exploring

Sources

  1. Macadamia Nut Toxicosis in Dogs, Merck Veterinary Manual. Checked October 22, 2026.
  2. People Foods to Avoid Feeding Your Pets, ASPCA Animal Poison Control Center. Checked October 22, 2026.
  3. Tremorgenic Neuromycotoxicosis in Dogs, Merck Veterinary Manual. Checked October 22, 2026.
  4. Paws Off Xylitol; It's Dangerous for Dogs, U.S. Food and Drug Administration. Checked October 22, 2026.
  5. Apple (toxic and non-toxic plants), ASPCA. Checked October 22, 2026.
  6. Cherry, Pet Poison Helpline. Checked October 22, 2026.

Last checked against these sources: October 22, 2026.

Written by VanillaGoods from the cited sources. Not reviewed by a veterinarian. Not a substitute for veterinary advice.