Apple — Food safety facts
Feed with care · Dogs · full breakdown on the linked food page
Flesh is safe in slices. Seeds contain cyanide compounds — remove the core and seeds. Small amounts of peel are fine.
Short answer
Yes, you can give your dog apple, but only in small, seed‑free pieces. The flesh is safe and even the thin skin is fine in moderation, but you must remove the core and all seeds because they contain cyanide‑like compounds. Offer a few bite‑size slices and watch for any stomach upset such as vomiting or loose stools. If your dog shows persistent vomiting, diarrhea, or seems lethargic, contact your veterinarian promptly.