Can dogs eat spinach?

Caution — small amounts only

Spinach isn't toxic but contains high oxalates that can affect kidneys. Small amounts are fine; large or regular amounts aren't.

The full picture

Spinach is a classic example of a 'healthy human food' that's a bit complicated for dogs. It's packed with vitamins A, B, C, K and iron — but it's also high in oxalic acid, which binds with calcium and can contribute to kidney damage over time. A small amount as an occasional treat is fine for healthy dogs. Dogs with existing kidney problems should avoid it entirely. Steamed or lightly cooked spinach is easier to digest than raw. Never add butter, salt, garlic, or onion (common pairings in cooked spinach recipes).

Risks to watch for

  • Oxalates can affect kidneys over time
  • Especially problematic for kidney-compromised dogs
  • GI upset if eaten in large amounts

Potential benefits

  • Vitamins A, B, C, K
  • Iron
  • Fibre

Safe portion size

A tablespoon of plain cooked spinach occasionally.

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Safer alternatives

  • Green beans
  • Carrots
  • Peas

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Related foods

Kale caution Broccoli caution Rhubarb no
Written and reviewed by
The Can My Dog Eat editorial team

Every food page is cross-checked against UK veterinary sources including the Veterinary Poisons Information Service (VPIS), the Animal PoisonLine, PDSA, and the Merck Veterinary Manual before publication. We do not accept paid placements from brands. If you spot an inaccuracy, please let us know — we take errors seriously and correct them quickly.

Spot an error? Report it

Checked against UK veterinary guidance — see our editorial standards and source list. If your dog has eaten something and you need urgent advice, call a vet or the Animal PoisonLine on 01202 509000.

Important: This page is general information, not veterinary advice. Every dog is different, and individual factors (age, breed, health conditions, medications) can change what's safe. If in doubt, always contact your vet — or the Animal PoisonLine on 01202 509000 in the UK.