Can rats eat oats and buckwheat?
Yes — safeHealthy Grain
Yes. Buckwheat and oats are healthy grains for rats. Offer a pinch, dry or cooked without salt, as part of the daily diet.
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- Serving
- A pinch as part of the diet
- How to prepare
- Dry, or cooked without salt
- Benefits
- A good grain within a varied diet. Grains alone lack the protein, vitamins and minerals rats need, so the main diet should be rat pellets.
The details
The RSPCA lists grains among the foods that can supplement a rat's diet. Grains alone lack the protein, vitamins and minerals rats need, so they shouldn't replace rat pellets as the main food.
How treats fit into a rat's diet
Most of what a rat eats each day should be a complete rat pellet or nugget, weighed out from the pack guidelines. Fresh fruit, vegetables and treats come out of that daily allowance, not on top of it: the RSPCA warns that extra sugar and fat lead to obesity and health problems, and rats gain weight easily. Remove any fresh food that hasn't been eaten within a few hours.
Sources
Last updated: September 29, 2026
This guide is general information based on RSPCA and PDSA guidance and does not replace a veterinarian. If your rat seems unwell, please contact an exotic-pet vet.