Can dogs eat kale?
✓ Reviewed against PDSA, Blue Cross & Animal PoisonLine guidance · Last updated: 2026-06-17
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The full picture
Kale is another superfood that's more complicated than it seems for dogs. It contains calcium oxalate (kidney/bladder stone risk over time) and isothiocyanates (GI irritation). Some dogs also struggle with the fibrous texture. A small amount of plain cooked kale as an occasional treat is unlikely to cause problems in a healthy dog, but regular feeding isn't recommended. Dogs with kidney or bladder stone history should skip it entirely. Never fry kale in oil or serve with garlic or onion.
Check individual ingredient safety at 247IngredientsCheck.
If your dog ate more than a safe amount
For a small accidental taste, watch for vomiting, diarrhoea, or signs of discomfort over the next few hours. For a large amount or if your dog is small or has existing health conditions, call your vet. When in doubt, call the ASPCA Animal Poison Control Center on (888) 426-4435.
Risks to watch for
- Oxalates — kidney/bladder stones over time
- GI irritation from isothiocyanates
- Gas
Potential benefits
- Vitamins A, C, K
- Calcium
- Antioxidants
Safe portion size
A small amount of plain cooked kale occasionally.
Safer alternatives
- Green beans
- Courgette
- Carrots
Does size or breed matter?
No specific toxicity concern from kale itself at any size — this is mainly a portion and preparation question. Always serve plain and cooked or chopped small where relevant, since whole or large raw pieces are a bigger choking risk for small and toy breeds than for large dogs. Introduce any new vegetable gradually, as too much fibre too quickly can cause loose stools regardless of the dog's size.