Reviewed by Hazel, BVSc | April 2026
Grain-free cat food has become increasingly popular in Australia, driven by the understanding that cats are obligate carnivores who naturally eat very few carbohydrates. Grain-free formulas replace wheat, corn, rice, and other grains with alternative carb sources like sweet potato, peas, or tapioca — or in the best cases, simply use more meat. The result is typically a higher-protein, lower-carbohydrate food that more closely aligns with a cat’s biological needs.
Grain-free means the food contains no wheat, corn, rice, barley, oats, or other cereal grains. However, grain-free does not mean carbohydrate-free. Most grain-free foods still contain 15–30% carbohydrates from alternative sources like potatoes, peas, or lentils.
The real benefit comes when grain-free foods use that extra space for more meat and protein rather than just swapping one starch for another.
Is Grain-Free Necessary for All Cats?
No — and this is an important distinction. Most healthy cats tolerate grains perfectly well. Grain-free food is most beneficial for cats with:
- Diagnosed grain sensitivities or allergies (relatively uncommon in cats)
- Digestive issues that improve on lower-carb diets
- Diabetes or obesity where lower-carb feeding is beneficial
- Owners who simply prefer a higher-protein, lower-carb approach
If your cat is thriving on a grain-inclusive food, there’s no medical reason to switch. Focus on overall ingredient quality rather than the grain-free label alone.
Quick Picks: Best Grain-Free Cat Food 2026
Best Grain-Free Cat Food Reviewed
Applaws Grain Free Dry Cat
8.0/10Applaws grain-free dry food features 80% chicken with limited, natural ingredients. Every component is recognisable and serves a nutritional purpose. It’s an excellent balance of quality ingredients and reasonable pricing for a grain-free food.
Pros
- 80% chicken with limited, transparent ingredients
- No grains, fillers, or artificial additives
- Good price for a high-meat grain-free food
Cons
- Only chicken flavour in the dry range
- Mainly available online and at specialty pet stores
Ziwi Peak Air-Dried
9.2/10Ziwi Peak is the ultimate grain-free cat food with 96%+ ethically sourced NZ meat, organs, and bone. The air-drying process preserves nutrients without any grains, fillers, or artificial preservatives. Multiple protein options including venison, lamb, mackerel, and beef.
Pros
- 96%+ meat content — virtually no carbs
- Multiple novel protein options for variety
- Air-dried for maximum nutrient retention
Cons
- Extremely expensive at ~$65/kg
- Strong aroma may not suit all households
Orijen Cat & Kitten
9.0/10Orijen’s “Biologically Appropriate” grain-free formula uses two-thirds fresh or raw animal ingredients. With 40% protein from chicken, turkey, fish, and eggs, it’s one of the highest-protein grain-free kibbles available in Australia.
Pros
- 40% protein from fresh & raw animal sources
- Low-glycaemic carbs only (lentils, beans)
- Freeze-dried liver coating for palatability
Cons
- Very expensive at ~$38/kg
- Rich formula can cause digestive upset during transition
Ivory Coat Grain Free Adult Cat
7.8/10Ivory Coat is an Australian-made grain-free option that delivers solid nutrition at a competitive price. With chicken or ocean fish as the first ingredient and added probiotics, it’s a strong choice for Aussie cat owners wanting grain-free without the premium price tag.
Pros
- Australian-made and grain-free at ~$15/kg
- Added probiotics for digestive health
- No artificial colours, flavours, or preservatives
Cons
- Contains tapioca and pea starch as carb fillers
- Limited distribution outside pet specialty stores
Black Hawk Grain Free
8.5/10Black Hawk’s grain-free range offers the best value-for-quality ratio in the Australian grain-free market. Made in Brisbane with duck or chicken as the primary protein, it delivers solid grain-free nutrition at a price that’s very accessible.
Pros
- Best value grain-free at ~$16/kg
- Australian-made with named meat as #1 ingredient
- Available at PetBarn and most pet stores
Cons
- Uses potato and tapioca as carb replacements
- Limited protein variety (chicken or duck only)