Apple: Only with care
Safe flesh — remove core and seeds which contain cyanide.
Apple flesh is safe and a good source of vitamins A and C and fiber. However, apple seeds contain amygdalin, which releases cyanide when chewed. The core is also a choking hazard. Always core and seed apples before sharing.
What makes it harmful: Amygdalin (in seeds only)
What to watch for
- seeds only: vomiting
- diarrhea
- shock in large quantities
For medium dogs (20–60 lbs)
A few slices are fine. Remove core and all seeds thoroughly.
Sources: AKC, ASPCA
A quick reference, not a substitute for your vet. If you're worried about your dog, call them.