Can dogs eat apples?

Why

Apple flesh is mostly water and fibre with a little natural sugar, plus some vitamin C and potassium. Dogs make their own vitamin C, so an apple isn't filling a nutritional gap for them — it's simply a crunchy, low-fat, low-calorie thing most dogs enjoy, which is exactly what a treat should be.

The pips are the only genuinely toxic part, and the risk is smaller than the internet tends to suggest. Apple seeds contain cyanogenic compounds, which can release cyanide when the seed is crushed and digested. But each pip holds only a tiny amount, the seed coat is tough, and dogs usually swallow pips whole rather than grinding them up. A stray seed swallowed by accident is not an emergency. We still say core-and-seeds-out because the risk is completely avoidable, and because it adds up if handing over the whole core becomes a habit.

The core is the part that more often causes a real problem, and it's mechanical rather than toxic. It's firm and fibrous and doesn't soften much on the way through, so a dog who bolts their food can choke on it, or — in a small dog especially — it can lodge somewhere it shouldn't. The stalk is the same story.

The other thing that catches owners out is simply quantity. Apple is sweet and high in fibre, so a dog who gets through half a bowlful usually pays for it with wind and sloppy stools rather than anything dramatic. If your dog is diabetic, overweight or on a prescription diet, the sugar genuinely counts — worth a word with your vet before apple becomes a regular thing.

How much is sensible?

Wash the apple, quarter it, and cut out the core and every pip — then chop the flesh into pieces sized for your dog's mouth rather than your hand. As a treat, think a couple of thin slices for a Labrador and one small slice cut into chunks for a terrier, a few times a week rather than every day. The useful rule of thumb is that treats of all kinds should stay under about 10% of your dog's daily calories, and apple has to share that allowance with everything else they're given. If your dog has never had it, start with a single piece and see how the next day looks. Puppies can have it once they're eating solids — just tiny, soft pieces, because their whole treat allowance is tiny. The skin can stay on for most dogs; peel it for a very small dog, a gulper, or one with a delicate stomach. Skip shop-bought apple sauce, apple juice and dried apple sweets: they're concentrated sugar with the fibre stripped out, and some sweetened products contain xylitol (birch sugar), which is dangerous to dogs.

Signs to watch for

• Gagging, drooling or repeated hard swallowing straight after eating — usually a piece that was too big
• Wind, and a gurgling, unsettled-sounding tummy a few hours later
• Bringing up a bit of undigested apple
• Softer stools than usual, or outright diarrhoea the next morning
• Going off their food, or standing hunched with a tender-looking belly

If your dog has had too much

Usually nothing dramatic is needed. If your dog has helped themselves to more apple than you intended, take the rest away, leave fresh water down, and expect a day of wind and soft stools — if they're bright and still eating, that's normally the end of it. A pip or two swallowed by accident doesn't need a vet visit; just keep half an eye on them. Do ring your vet, though, if your dog swallowed a whole core (particularly a small dog), or if you see gagging that doesn't settle, repeated or unproductive retching, vomiting that carries on, refusal of food, a painful or bloated belly, or unusual quietness — those point towards a blockage rather than a simple bellyache, and blockages only get worse with waiting. Don't try to make your dog sick unless your vet specifically tells you to.

Serving tips

• Core it over the bin, not the worktop — the commonest way a dog gets hold of a core is finding one left on a plate or chopping board within nose reach.
• Cut to the dog, not to the apple: thin slices or small cubes for little dogs and enthusiastic gulpers, so there's nothing worth bolting whole.
• Frozen apple chunks make a good hot-weather treat and slow a fast eater right down; they also work well pressed into a lick toy with a little of their usual food.
• If you have an apple tree, watch the windfalls — dogs will hoover up fallen fruit, cores and pips included, and fruit that's been lying about ferments and draws wasps.

Common questions