Serving advice
Treat green apples as a snack rather than part of the daily ration — the usual ceiling is about 10% of daily calories. Start with one small piece of green apples and watch stools and appetite over the next 24 hours.
The flesh of green apples is safe for dogs and cats and can be a crunchy treat. However, the core and seeds contain cyanogenic glycosides that can release cyanide; even a few seeds may cause vomiting or respiratory distress. Always remove the core and seeds before offering the fruit.
Dogs and cats carry the same rating (Safe to share), so the notes below hold for either pet.
There is no poisoning risk here, and the usual problem is simply eating too much at once: a heavy fat or salt load can bring on loose stools or a single vomit. Offer water, keep an eye on the pet for 24 hours, and do not induce vomiting.
Other foods that are safe to share
The full A–Z food list groups every food by verdict for each species.
Why these cautions matter
Stone-fruit pits and some seeds release cyanide when crushed, and quite apart from that they are a choking and blockage hazard.
Frequently asked questions
Can cats eat green apples?
YES — safe. The flesh of green apples is safe for dogs and cats and can be a crunchy treat. However, the core and seeds contain cyanogenic glycosides that can release cyanide; even a few seeds may cause vomiting or respiratory distress. Always remove the core and seeds before offering the fruit.
How much green apples can cats have?
Serve green apples as a snack and keep it under about 10% of daily calories. Start with one small piece of green apples and watch stools and appetite for the next 24 hours.
What reaction should I watch for after cats eats green apples?
In the 24 hours after cats eats green apples, look for vomiting, diarrhoea, gas or a drop in appetite. The flesh of green apples is safe for dogs and cats and can be a crunchy treat. However, the core and seeds contain cyanogenic glycosides that can release cyanide; even a few seeds may cause vomiting or respiratory distress. Always remove the core and seeds before offering the fruit.
How often can cats have green apples?
Treat green apples as an occasional extra, once or twice a week at most, and keep the portion small next to your cat's regular meals — those still do the nutritional work.
What else can cats have besides green apples?
Rotate through the safe list — Kale or Kiwi — instead of the same thing every time; a mix covers more nutrients than any single extra, and it stops your cat holding out for one favourite.