- Yes, in small amounts – dogs can eat spinach
- Contains oxalic acid that restricts calcium absorption
- Avoid entirely if your dog has kidney problems
Yes, dogs can eat spinach in small amounts. Like some other fruits and vegetables for dogs, it comes down to portion size. Spinach contains oxalic acid, which in larger amounts can interfere with calcium absorption and burden the kidneys. For healthy dogs without kidney problems, occasional spinach is safe.
What spinach offers dogs
Spinach contains vitamin A, vitamin K, iron, and magnesium. Vitamin K is important for blood clotting; iron supports blood formation. The fiber content supports digestion.
What to watch out for
Oxalic acid in spinach binds calcium in the intestine and prevents its absorption. With regularly large amounts, this can affect calcium balance and promote kidney stones. If you have doubts, carrots are a better vegetable option. Dogs with existing kidney problems should not eat spinach at all.
Cooked spinach has significantly lower oxalic acid content than raw: cooking or steaming is preferable.
How to feed spinach to your dog
Wash spinach and briefly blanch or steam it in water without salt, then cool. Offer only small amounts as a supplement to food, not as the main vegetable. Feed occasionally, not daily.
Nutritional values and amounts
Per 100 g raw spinach: approximately 23 kcal, 2.9 g protein, 2.2 g fiber, 558 mg potassium, and 470 mg oxalic acid. Iron content is 2.7 mg; vitamin K is 483 µg (one of the most vitamin K-rich vegetables).
Guidelines by body weight (cooked, pureed, per meal):
- Small dogs (up to 10 kg): 1 tablespoon, maximum 2 times per week
- Medium dogs (10 to 25 kg): 2 tablespoons, maximum 2 times per week
- Large dogs (over 25 kg): 3 tablespoons, maximum 2 times per week
Blanching and discarding the cooking water reduces oxalic acid content by up to 50%. Store leftovers in the refrigerator for a maximum of 2 days, as nitrite can form at room temperature.
Quick Quiz
Question 1 of 3Why is spinach off-limits for dogs with kidney problems?
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