Fruit Seeds and Pits

Also known as: apple seeds, cherry pits, peach pits, apricot pits, plum pits

Danger (Avoid)

Hamsters love seeds — it is practically their identity. But fruit seeds and pits from apples, cherries, peaches, and apricots are not the harmless seeds your hamster is used to. They contain amygdalin, which converts to hydrogen cyanide when chewed. Your hamster's instinct to crack and eat seeds makes this uniquely dangerous for them.

Quantity

A single apple seed, crushed and ingested, can release enough cyanide to harm a hamster. Cherry and apricot pits contain even higher concentrations. Always remove every seed and pit before offering any fruit.

Notes

The danger is specifically in the seeds inside the fruit — not the fruit flesh itself. Apple seeds, cherry pits, peach pits, apricot kernels, and plum pits all contain amygdalin. A hamster who gets an apple slice with seeds still attached will go for the seeds first, because that is what hamsters do.

Negative Signs

* Difficulty breathing — rapid, gasping breaths
* Bright red or very pale gums
* Drooling and salivation
* Tremors and loss of coordination
* Sudden collapse
* Seizures

FAQ

Q: I gave my hamster an apple slice and forgot to remove the seeds. They ate one. How worried should I be?
A: Very worried. Apple seeds contain cyanide precursors, and hamsters crack seeds open instinctively — which is exactly what releases the poison. Call your exotic vet immediately and monitor for breathing difficulty or tremors.

Alternatives

Pumpkin seeds (unsalted, raw) and sunflower seeds are the safe seed treats your hamster craves. They get the cracking behavior they love without any toxic risk.

Risks & Disclaimer

Cyanide poisoning acts fast. If your hamster cracked open and ate a fruit seed or pit, contact your exotic vet immediately. Symptoms can appear within minutes to hours. Do not wait to see if your hamster "seems fine."