Can Dogs Eat Spinach? Benefits, Safety, and How to Serve
Leafy greens are some of the most nutritious vegetables you can add to a dog's bowl, so it is a great question to ask: can dogs eat spinach? Yes. For most healthy dogs, spinach is a safe and nutrient-packed topper. There is one small nuance about oxalates that matters for a specific group of dogs, and we will cover it clearly. Here is everything you need to know about feeding spinach to your dog, including the benefits, how to serve it, and how much is sensible.
Quick Answer
Yes, dogs can eat spinach. It is a nutritious, low-calorie green that delivers vitamins A, C, and K, iron, and antioxidants. Serve it plain, washed, and chopped or lightly steamed. The one exception is dogs with kidney disease or a history of calcium oxalate stones, who should go easy on spinach and check with their veterinarian.
In This Article
Is spinach good for dogs?
Yes. Spinach is a nutrient-dense leafy green that makes a healthy, low-calorie addition to a dog's bowl. A little goes a long way, delivering:
- Vitamins A, C, and K: support vision, immune health, and normal blood clotting.
- Iron and folate: contribute to healthy red blood cells.
- Antioxidants: help protect cells from everyday wear and tear.
- Fiber: supports healthy digestion, with very few calories.
We think highly enough of leafy greens that we build them right into our food. Spinach is one of the whole-food ingredients in Petaluma's Whole Food Mixer, formulated by veterinary nutritionists as part of a complete and balanced recipe.
Is spinach safe for every dog?
You may have read that spinach is high in oxalates, natural compounds that bind calcium and are processed by the kidneys. This is true, but for a healthy dog eating spinach in normal amounts, it is not a concern. Healthy kidneys handle the oxalates in a regular serving without trouble, which is exactly why spinach is a sound ingredient in everyday foods, including our own.
The group that should be careful is dogs with kidney disease or a history of calcium oxalate bladder stones. For those dogs, it is best to limit or skip spinach and follow your veterinarian's guidance. For everyone else, fresh spinach is a nutritious green you can feed regularly in moderation.
How to serve spinach safely
Spinach is easiest for dogs to use when it is plain and broken down a bit, since dogs do not digest tough plant fibers as well as we do.
- Wash it well: rinse thoroughly to remove dirt and residue.
- Chop or steam: finely chopped raw spinach or lightly steamed spinach is easier to digest than whole leaves.
- Keep it plain: no oil, butter, or salt, and never cook it with onion or garlic, which are toxic to dogs per the Merck Veterinary Manual.
- Mix it in: stir a little into your dog's regular food as a topper.
How much spinach can a dog have?
Spinach, like all toppers, should stay within about 10% of your dog's daily calories per WSAVA guidance. A little chopped spinach goes a long way. Here is a suggested starting point, but please calculate your dog's caloric needs and then factor in spinach as a topper accordingly
| Dog size | Chopped spinach per serving |
|---|---|
| Small (under 20 lb) | Up to about 1/4 cup, chopped |
| Medium (20 to 50 lb) | Up to about 1/2 cup, chopped |
| Large (over 50 lb) | Up to about 1 cup, chopped |
These are starting amounts, not strict limits. Spinach is so low in calories that it sits well within the 10% guideline with room to spare, so the real limit is your dog's digestion rather than the calorie count. Introduce it gradually, since a large serving of any new fiber can cause loose stools in a dog who is not used to it.
Love adding greens to the bowl?
Petaluma's plant-based Whole Food Mixer brings the variety and nutrition of vegetables in a complete and balanced form, formulated by veterinary nutritionists. Add the goodness of plants without the guesswork. Not sure where to start? Try a free sample.
Frequently Asked Questions
Is spinach safe for dogs?
Yes. Spinach is a nutritious, low-calorie green that is a healthy addition to most dogs' meals, which is why we include it in our Whole Food Mixer. The only dogs who should limit or skip it are those with kidney disease or a history of calcium oxalate stones, who should follow their veterinarian's advice.
Can dogs eat spinach raw or cooked?
Both work. Finely chopped raw spinach is fine, and lightly steaming it makes it even easier to digest. Either way, serve it plain, with no oil, salt, butter, onion, or garlic.
How much spinach can I give my dog?
A good guide is up to about 1/4 cup of chopped spinach for small dogs, 1/2 cup for medium dogs, and up to 1 cup for large dogs, mixed into meals. Spinach is so low in calories that the practical limit is your dog's digestion, not the calorie count, so start small and build up gradually.
Which dogs should avoid spinach?
Dogs with kidney disease or a history of calcium oxalate bladder stones should limit or avoid spinach because of its oxalate content. If your dog has any kidney or urinary condition, ask your veterinarian before adding it.
Can other leafy greens be fed like spinach?
Yes. Greens like kale, chard, and lettuce can also be offered plain and chopped in small amounts. As with spinach, introduce them gradually and keep portions modest within the daily treat allowance.
References
- U.S. Department of Agriculture, Agricultural Research Service. FoodData Central (spinach, raw). fdc.nal.usda.gov
- World Small Animal Veterinary Association. Feeding Treats to Your Dog (Global Nutrition Committee). wsava.org
- Merck Veterinary Manual. Garlic and Onion (Allium spp) Toxicosis in Animals. merckvetmanual.com
Related reading on the Petaluma blog: Plant-based dog food toppers: the complete guide / The benefits of fiber and probiotics for dogs / How much should you feed your dog?
