Best Food for Cornish Rex (2026 Guide)
A breed-specific food guide for Cornish Rex owners — what to look for, what to avoid, and our top picks based on this breed's size, energy and known health profile.
Photo: Kim Dubois / Pexels
The Cornish Rex is slender, ultra-curly cat. athletic, sociable and warm to the touch. Their nutritional needs reflect their 2.5–4.5 kg body weight, 11–15 years lifespan, and the breed-specific health considerations covered below.
Why feeding a Cornish Rex is different
Feeding the Cornish Rex well is mostly about avoiding the classic mistakes: overfeeding (especially in food-driven breeds), cheap fillers, and inappropriate life-stage food.
With an active Cornish Rex, calories go up — a working/sporting-line dog can need 30–50% more daily calories than a sedentary one of the same weight. Adjust for actual exercise, not the breed average.
Cardiac issues are common — discuss taurine + L-carnitine supplementation with your vet, and be cautious about grain-free + legume-heavy diets (the FDA has linked them to dilated cardiomyopathy in some lines).
Below: a specific list of what to look for, what to avoid, plus our daily-calorie estimate for an average Cornish Rex.
What to look for in food for a Cornish Rex
- A complete-and-balanced food labelled for cats that meets FEDIAF or AAFCO nutritional standards.
- Named animal protein as the first ingredient (e.g. "chicken", "salmon"), not "meat derivatives" or "animal by-product".
- Foods with adequate taurine. Be cautious with grain-free diets — the FDA has investigated a possible link with DCM.
- A working / sport formula with higher protein (28%+) and fat (15%+) for sustained energy.
What to avoid
- Untested boutique grain-free brands without taurine in the analysis.
- Anything containing onion, garlic, raisins, xylitol or chocolate flavouring (common kitchen toxins for pets).
For an exact daily portion based on your dog's weight and activity, use our food portion calculator. To check current weight is healthy, use the body condition score.
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Health overview — Cornish Rex
Hypertrophic cardiomyopathy. Patellar luxation. Hereditary baldness in some lines.