Supreme Science Selective Gerbil is an extruded kibble made by Supreme Petfoods in the UK. Unlike a loose seed mix, every piece is the same, so gerbils cannot pick out only their favorites. That is the main reason it is a sensible staple food for gerbils.
What the maker says
Supreme describes Science Selective Gerbil as a no-added-sugar recipe in a crunchy extruded format, formulated for gerbils’ protein needs (gerbils need more protein than rats or mice, but less than hamsters). It includes prebiotics for digestive health and linseed for skin and coat. It is sold in 700 g packs, mostly through UK retailers, so availability in the US may be limited. We could not find a full ingredient list or protein percentage published by the maker, so check the pack.
Why a uniform kibble helps
PDSA and Burgess both recommend pellet or nugget style food over muesli-style mixes. Gerbils tend to pick out sugary and fatty pieces from mixes and leave fiber behind, which can unbalance the diet and affect teeth and weight.
How much to feed
- About a tablespoon of nuggets per gerbil per day is a common guideline; adjust for your gerbil’s size and body condition.
- Feed once a day, ideally in the morning, and scatter some around the cage to encourage foraging.
- Always keep fresh water available.
What to add
Offer small pieces of vegetables such as carrot, broccoli, or cucumber a few times a week, and an occasional treat such as a bit of boiled egg or a mealworm. Keep sunflower seeds, nuts, and fruit rare because they are high in fat or sugar. Avoid citrus, grapes, onion, garlic, and chocolate.
Related reading: our Supreme gerbil food review, the what can I feed gerbils guide, and our overall hamster and gerbil food guide.
Bottom Line
Science Selective Gerbil is a good fit if you want a simple, no-added-sugar staple that prevents selective feeding. Pair it with a few fresh vegetables and treat seeds and nuts sparingly.
General information only, not veterinary advice. If your gerbil is losing weight or not eating, see an exotic-pet vet.
