Hamster and gerbil food
Hamsters and gerbils are both seed-and-cereal eaters at heart, so the food side of this aisle is mixes and pellets built around grains, seeds and dried vegetables, plus hay and forage to give them something to work for. The main choice to get right is between a loose mix, which lets a fussy eater cherry-pick the bits they like, and an extruded pellet, which forces them to eat the whole balanced formula rather than just the sunflower seeds.
Mixes versus pellets
A traditional seed and cereal mix looks generous in the bowl and most hamsters and gerbils enjoy foraging through it, but it has one real weakness: an animal that only eats the seeds and sunflower kernels it likes best and leaves the rest is not getting the balanced diet the bag was formulated to provide.
An extruded or pelleted diet bakes all the nutrition into a single uniform piece, so there is nothing to pick around — every mouthful is the same complete formula. Some owners run a small amount of both, using the pellet as the staple and a lighter sprinkling of mixed seed as enrichment rather than the main meal.
Hay and forage
Gerbils in particular benefit from a source of hay or dried forage mix alongside their main food, since it gives them fibre and something to shred and burrow into as much as something to eat. It is a small addition but does two jobs at once — feeding and enrichment.
Hamsters take less hay overall than gerbils but still benefit from occasional forage mixes for the same reason: it slows down feeding, gives them something to do, and adds variety to a diet that can otherwise be the same bowl of the same mix every day.
How much and how often
Both species do better on a modest daily amount than a bowl kept permanently topped up, because both hoard food in their bedding, and an overfilled bowl just means more gets stashed and goes stale rather than eaten fresh. A tablespoon or two of a good mix or pellet, once a day, is closer to right for most adult hamsters and gerbils than it looks.
Fresh water matters as much as the food itself, and a hamster or gerbil on a mostly dry seed diet will drink more, not less, than people expect — check the bottle daily rather than assuming a full one from a few days ago is still flowing.
Common questions
- Can hamsters and gerbils eat the same food?
- There is a lot of overlap, since both are seed and grain eaters, and a general small-animal mix or pellet aimed at either species will usually suit the other reasonably well. Gerbils do better with slightly more fibre and forage than hamsters typically need, so it is worth checking the bag is not aimed purely at one species if you keep both.
- Why does my hamster hide its food instead of eating it?
- Hoarding food in bedding is completely normal hamster behaviour rather than a sign anything is wrong, and it is one reason not to keep topping up an already full bowl. Give a modest daily amount and let them cache some of it; just check occasionally for stashes going mouldy in damp bedding.
- Do gerbils need hay like rabbits do?
- Not in the same quantity a rabbit needs, but a regular offering of hay or a dried forage mix gives gerbils useful fibre and something to shred and dig through, which suits their natural burrowing behaviour. It is a helpful addition to a seed or pellet diet rather than the main event.
- Is a pelleted diet better than a seed mix for a fussy hamster?
- It often is, because a pellet cannot be picked apart the way a loose seed mix can, so a selective eater still gets the full balanced formula in every piece rather than just the tastiest seeds. Many owners find a fussy hamster settles onto pellets faster than expected once the mix stops being an option.
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Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.