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Yes, gerbils can eat cucumber. The RSPCA lists it among vegetables that can supplement pellets, and Burgess includes it in its safe list. Give about a quarter of a thin slice per gerbil once or twice a week. Cucumber is mostly water, and gerbils are desert animals with stomachs easily upset by watery food, so keep pieces small and do not give it every day.
| Safe? | Yes, in small amounts |
| How much | A quarter of a 5 mm (0.2 in) slice per gerbil |
| How often | Once or twice a week |
| Best served | Fresh, washed, skin on, raw |
| Watch out for | Loose droppings, soggy leftovers in bedding, pickles |
Is cucumber good for gerbils?
It is safe, and many gerbils like the crunch. The RSPCA names cucumber alongside carrot, pumpkin and fennel as vegetables to offer, and Burgess suggests it in small slices or cubes. It is low in sugar, which makes it a better regular choice than fruit.
The limit is water. Gerbils drink very little: the MSD Veterinary Manual puts an adult's intake at about 4 ml (less than a teaspoon) a day. Cucumber is almost all water, and the Gerbil Care welfare site warns that too much fresh food can cause diarrhoea, which can be fatal in a gerbil.
How much cucumber, and how often?
Cut one slice about 5 mm (0.2 in) thick into quarters: one quarter per gerbil, once or twice a week. Gerbil Care's guide for all fresh food is about one thumbnail-sized portion per gerbil, around twice a week, so cucumber fills one of those slots, not an extra.
How to prepare cucumber
- Wash it. Rinse well. Peel only if it has a wax coating.
- Slice thinly. One round about 5 mm (0.2 in) thick.
- Cut in quarters. One piece per gerbil.
- Pat it dry. A quick dab on kitchen paper keeps the bedding drier.
- Clear leftovers. Check the nest the same day. Hoarded cucumber goes soggy and spoils.
If droppings are fine after cucumber, it makes a good low-sugar swap for fruit on taming days. If they turn soft, try carrot instead: it is firmer and carries much less water.
Skin, seeds, pickles and other forms
- Skin: fine once washed.
- Seeds and soft centre: fine, but the wettest part. Scoop it out for a gerbil with a sensitive stomach.
- Pickles and gherkins: no. Vinegar, salt and often garlic, which Burgess lists as poisonous.
- Cucumber in salads with dressing: no. Use plain cucumber only.
Who should skip cucumber?
Gerbils with loose droppings, very young gerbils still settling in and any gerbil that is new to fresh food. Start them on a drier vegetable first.
Other vegetables to try
Rotate cucumber with a sliver of carrot, a small broccoli floret or a scrap of romaine lettuce. Our safe food list for gerbils, gerbil diet guide and complete gerbil care guide cover the rest.
Cucumber questions
Can gerbils eat cucumber skin?
Yes. The skin is fine once the cucumber is washed, and it is firmer and less watery than the seedy middle. If the cucumber has a waxy coating you cannot wash off, peel it instead.
Can gerbils eat cucumber seeds?
The soft seeds inside a cucumber are eaten with the flesh and are not a known problem. The seedy centre is the wettest part, though, so if your gerbils tend to get loose droppings, scoop it out and give a piece of the firmer outer flesh and skin.
Can gerbils eat pickles or gherkins?
No. Pickles are soaked in vinegar and salt, often with garlic and spices. Burgess lists garlic as poisonous to gerbils, and salt does them no good. Only fresh, plain cucumber is suitable.
Is cucumber good for gerbils in hot weather?
A little is fine, but it is not a way to keep them hydrated. Gerbils drink only about 4 ml of water a day, says the MSD Veterinary Manual, and should always have a working bottle or bowl. In heat, keep the cage out of sun and away from radiators instead.
