Fruit Seeds and Pits

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

Danger (Avoid)

Apple seeds, cherry pits, peach pits, apricot pits — any seed or pit from stone fruits or pome fruits is dangerous for guinea pigs. These contain compounds that release cyanide when chewed and digested. Guinea pigs are aggressive chewers who will gnaw through a pit if given the chance, and their small body weight makes the cyanide exposure proportionally massive.

Quantity

Apple seeds are small, but a guinea pig who chews through 5–10 of them is getting a concerning cyanide dose relative to their body weight. A single cherry or apricot pit, if cracked and chewed, contains enough amygdalin to be dangerous. Always err on the side of caution.

Notes

The most common exposure is apple seeds left in apple slices given as treats. Apples are safe for guinea pigs — but only if you core them and remove every single seed first. Cherry pits, peach pits, and apricot pits are less likely to be fed intentionally, but guinea pigs during floor time can find dropped fruit debris. Stone fruit pits are also a choking hazard even without the cyanide concern.

Negative Signs

* Difficulty breathing — rapid, shallow breaths
* Bright red or cherry-red gums (classic cyanide sign — the blood can't release oxygen to tissues)
* Weakness and collapse
* Drooling
* Seizures
* Sudden death in severe cases

FAQ

Q: I gave my guinea pig apple slices and forgot to remove the seeds. What do I do?
A: Check how many seeds were in the slices. If your pig ate one or two seeds without cracking them, they may pass through undigested. But if they chewed them (which guinea pigs usually do), monitor closely for breathing difficulties, drooling, or weakness. Call your vet if you're concerned at all.

Q: Are seeds from bell peppers or tomatoes also dangerous?
A: No — bell pepper seeds are harmless and can be fed without concern. The dangerous seeds are specifically from pome fruits (apples, pears) and stone fruits (cherries, peaches, plums, apricots), which contain amygdalin. Bell pepper seeds are perfectly safe.

Alternatives

Apple flesh (without seeds or core) is a wonderful guinea pig treat and a source of Vitamin C. Just take 30 seconds to core and deseed it properly. The fruit is great — it's only the seeds that are the problem.

Risks & Disclaimer

If your guinea pig chewed on or ate fruit pits or a significant number of apple seeds, this is a vet emergency. Cyanide poisoning can progress from symptom onset to death very rapidly. Don't wait to see if symptoms develop — call your exotic vet immediately.