Degu diabetes: how to build a sugar-free diet
The Chilean degu (Octodon degus) is an increasingly popular diurnal, social little rodent in pet stores. Its lesser-known trait: an almost total sugar intolerance, which sets it apart from most pet rodents. All our food guides are gathered in the rodent food section.
What does research show about degu metabolism?
A landmark review published in 2013 by Ardiles and colleagues in Cold Spring Harbor Protocols established the degu as a natural animal model for type 2 diabetes and its complications, including cataracts (study on PMC). Unlike most pet rodents, a diet rich in simple sugars is enough on its own to trigger lasting hyperglycaemia in this species.
Why can't degus handle any sugar?
Their insulin has an unusual structure, less effective than that of other mammals at regulating blood glucose. As a result, sweet fruit, raisins, honey, or commercial rodent mixes (often laced with molasses) are a genuine risk, potentially leading to established diabetes, early cataracts, or even kidney failure.
What should go in the bowl day to day?
- Unlimited hay: the foundation of the diet, as with our guide to hay for guinea pigs and chinchillas.
- Degu- or chinchilla-specific pellets: no molasses or added fruit pieces, in measured amounts.
- Low-sugar vegetables: leafy greens, a few sprigs of parsley, in small quantities.
- No sweet fruit, and no commercial treats based on honey or sugar, even in tiny amounts.
Which signs should raise alarm?
Excessive thirst, heavy urination, weight loss despite a preserved appetite, or gradually clouding eyes (cataracts) should prompt a quick visit to an exotic-animal vet: diabetes caught early is managed far more easily than diabetes established for months.
Frequently asked questions
Can a degu eat fruit once in a while?
No, even occasional sweet fruit poses a disproportionate risk for this species compared with other pet rodents.
Is degu diabetes hereditary?
The predisposition is largely genetic and specific to the species, but a suitable diet from a young age strongly reduces the risk of it developing.
Can degus eat standard hamster or mouse pellets?
No, those often contain fatty seeds and unsuitable sweet additions: a mix designed for degus or chinchillas is a better fit. Browse the full species profile on our degu page.
This guide is part of Planète Pets’s Rodents universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.