Hides and houses
Shelves and ledges
Foraging and toys
Cage accessories
Kits and bundles
Fairy forest
Spooky mischief
Sweetie stash
Game mode
Forest floor
Castles and cathedrals
Yes, guinea pigs can eat cucumber. A slice or two of washed cucumber, skin and soft seeds included, can go into the daily greens mix most days. It is low in sugar and very watery, which makes it a good cooling snack, but it has little vitamin C and too much can cause loose droppings.
| Safe? | Yes, as part of the daily greens |
| How much | 1 or 2 slices, about 1 cm (half an inch) thick |
| How often | Most days, rotated with other veg |
| Best served | Raw, washed, skin on |
| Watch out for | Soft droppings if overfed |
Is cucumber good for guinea pigs?
Yes. The RSPCA puts cucumber in its group of vegetables guinea pigs can eat often, alongside peppers, celery and romaine lettuce. Burgess calls it safe in moderation and warns that too much can cause diarrhoea.
Cucumber has under 2 g of sugar per 100 g (3.5 oz), very little calcium (about 16 mg) and only about 3 mg of vitamin C, worked out from the Guinea Lynx food chart. So it is gentle and hydrating, but it does almost nothing for a guinea pig's daily need for vitamin C. Think of it as the cool, crunchy filler in the bowl, with the real nutrition coming from hay, peppers and leafy greens.
How much cucumber can a guinea pig have?
One or two slices, each about 1 cm (half an inch) thick, per guinea pig. The PDSA suggests about one cup of fresh vegetables per guinea pig per day, made from five or six different kinds, so cucumber should be one small part of that cup, not the whole thing.
Because it is so watery, cucumber is the first thing to cut back if droppings get soft. It is especially welcome on hot days, but it is no substitute for fresh water, which must always be there.
How to prepare cucumber
- Wash it well. Scrub the skin under cold water to remove dirt and spray residue.
- Slice it. Cut rounds about 1 cm (half an inch) thick, or quarter them into sticks.
- Serve it fresh. Offer it raw and at room temperature, alongside other greens.
- Clear up leftovers. Remove uneaten pieces within a few hours before they go soft and spoil.
Skin, seeds, leaves and pickles
- Skin: safe, and worth leaving on once washed.
- Seeds: the soft seeds in a salad cucumber are fine.
- Leaves and vines: our sources don't cover them, and the plant is hairy and prickly, so we'd leave them out.
- Pickles and gherkins: no. They are full of vinegar, salt and often garlic.
- Cooked cucumber: no need. Guinea pigs should only have raw vegetables.
Who should go easy on cucumber?
Guinea pigs with a sensitive stomach or loose droppings should have less, or none until things settle. Young guinea pigs can try a small piece once they are weaned and eating greens. New foods should always be introduced gradually, as the RSPCA advises.
What to offer alongside it
Pair cucumber with something rich in vitamin C. Bell peppers are the best everyday choice, and romaine lettuce and celery round out the bowl. For more ideas, see what can guinea pigs eat, our guinea pig diet guide and the guinea pig care guide.
Cucumber questions
Can guinea pigs eat cucumber skin?
Yes. The skin is safe and carries most of the cucumber's fibre and what little vitamin C it has. Wash it well first, since the outside is where any spray or dirt sits. If you can't wash it properly, peel it, but there is no need to peel a clean cucumber.
Can guinea pigs eat cucumber seeds?
Yes, the soft seeds inside a normal salad cucumber are fine. They are small, tender and eaten along with the flesh. This is different from hard seeds such as apple pips, which should always come out. Large, tough seeds in an overgrown garden cucumber are best scooped out.
Can guinea pigs eat cucumber every day?
Yes, a slice or two can go in most days, as RSPCA lists cucumber among the vegetables guinea pigs can eat often. Rotate it with other greens so your guinea pig gets a mix, and cut back if droppings turn soft.
Can guinea pigs eat pickles or gherkins?
No. Pickles and gherkins are soaked in vinegar and salt, often with sugar, garlic and spices. Garlic is on the PDSA list of foods to avoid, and none of the rest suits a guinea pig's gut. Only ever give plain, raw cucumber.
