Dogs · Food safety
Can Dogs Eat Cucumbers? Benefits, Pickles and How Much to Give
Yes, dogs can eat cucumbers. Cucumbers are about 96% water, very low in calories (about 8 calories per half cup of slices) and fat-free, which makes them a good treat for dogs watching their weight. Wash them, cut into thin slices, and give about 1–2 slices for extra-small dogs up to a large handful for giant breeds, keeping all treats under 10% of daily calories. Pickles are not safe: they're high in salt and often contain garlic or onion.
| Safe for dogs? | Yes, plain raw cucumber |
|---|---|
| Good for | Hydration (96% water), very low calorie, fat-free |
| How much | 1–2 slices for extra-small dogs up to a large handful for giant breeds (see table) |
| Avoid | Pickles, store-bought cucumber drinks (may contain xylitol), whole cucumbers |
| Ask your vet first if | Your dog is on a prescription diet or has a sensitive stomach |
Are cucumbers good for dogs?
Cucumbers are a refreshing, crunchy snack. They're 96% water, fat-free and very low in sodium, with only about 8 calories in half a cup of slices, compared with around 40 calories in one medium dog biscuit. That makes them a smart swap for dogs who need to lose weight.
They also contain small amounts of vitamins B, C and K, potassium and magnesium, although the few slices a dog eats won't add much nutritionally.
How much cucumber can a dog eat?
Follow the 10% rule: treats, cucumber included, should be no more than 10% of your dog's daily calories. Each slice should be no wider than about 1 inch and about ¼ inch thick.
| Dog size | Weight | Cucumber |
|---|---|---|
| Extra-small | 2–20 lb (1–9 kg) | 1–2 slices |
| Small | 21–30 lb (10–14 kg) | 2–3 slices |
| Medium | 31–50 lb (14–23 kg) | 5–6 slices |
| Large | 51–90 lb (23–41 kg) | A handful of slices |
| Extra-large | 91 lb+ (41 kg+) | A large handful of slices |
How to give your dog cucumber
- Wash it to remove dirt and pesticide residue.
- Slice it thinly. Whole cucumbers and big chunks can cause choking or a blockage, especially in small dogs and fast eaters.
- Peel and de-seed if your dog has a sensitive stomach. Skin and seeds are generally safe, but some dogs find seeds hard to digest, and PetMD suggests trimming the ends and peel to be safe.
- Start with one slice to check your dog tolerates it.
- Try it frozen or blended with other dog-safe fruit like watermelon or blueberries in a puzzle toy.
Can dogs eat pickles?
No. Pickles are high in salt and often contain garlic, onion and spices, which can be harmful to dogs. Stick to plain, fresh cucumber. Avoid store-bought cucumber drinks too, as some contain xylitol, which is toxic to dogs.
Can puppies eat cucumber?
Yes. Puppies can eat thin slices of plain raw cucumber. Peeling and removing the seeds can make it easier on a young puppy's stomach.
Frequently asked questions
Are cucumbers safe for dogs?
Yes. Plain cucumbers are safe and healthy for dogs when washed, sliced thinly and given in moderation.
How many cucumber slices can a dog eat?
About 1–2 slices for extra-small dogs, 5–6 for medium dogs and a large handful for giant breeds, keeping all treats under 10% of daily calories.
Do I need to peel cucumber for my dog?
Not usually; skin and seeds are generally safe. Peeling and de-seeding can help dogs with sensitive stomachs.
Can dogs eat pickles?
No. Pickles are high in salt and often contain garlic, onion and spices that can be harmful to dogs.
Are cucumbers good for overweight dogs?
Yes. They're 96% water and very low in calories, so they're a good low-calorie swap for higher-calorie treats.
Can cucumber upset a dog's stomach?
Too much of any new food can. Start with a slice or two; if your dog has vomiting or diarrhoea, stop and call your vet.
Sources
This guide is general information, not veterinary advice. Every dog is different; ask your vet before changing your dog's diet, especially if your dog has diabetes, is overweight, or has a sensitive stomach.