Can Dogs Eat Cabbage? Leaf by Leaf

By Kosar Koohi

Updated 25 October 2026

Cabbage has a reputation, and anyone who has shared a sofa with a gassy dog knows which one. So, can dogs eat cabbage? Yes. Plain cabbage is not toxic to dogs, and a small amount of cooked, finely chopped leaf is a crunchy, low-calorie extra for most healthy dogs.

Is Cabbage Safe for Dogs?

Cabbage is safe for most dogs when it is plain, chopped small and offered in modest amounts. Red, green, savoy and napa cabbage are all fine. The most common side effect is gas. Cooked cabbage is easier to digest, and only large, frequent helpings of raw cabbage are linked to thyroid concerns. Butter, salt and seasoning change the answer.

Most savory cabbage recipes lean on the onion family, and onions and garlic are toxic to dogs whether fresh, cooked or powdered.

Fermented cabbage raises its own salt questions, and this guide to sauerkraut for dogs covers them.

Raw vs Cooked Cabbage for Dogs

Both are safe, but cooked usually wins. Steaming or boiling softens the tough fiber, so it is gentler on the stomach. Boiling also lowers the compounds that can affect the thyroid, because heat destroys the plant enzyme that releases them and some wash into the water. Raw cabbage, finely shredded, is fine as an occasional nibble.

Dogs Who Should Skip Cabbage

Dogs with diagnosed hypothyroidism, dogs on a prescription diet or food trial, and dogs who already struggle with gas are better off without it unless their vet agrees.

A dog whose digestion protests at anything new may do better with these dog foods for a sensitive stomach than with extra vegetables.

Is Cabbage Good for Dogs? Fiber, Vitamin K and Few Calories

In small amounts, yes. A complete and balanced food already covers every nutrient, so cabbage is a light extra, not a supplement.

Cabbage Nutrition in a Dog-Sized Serving

• Calories: about 23 to 25 per 100 grams, so a spoonful barely registers.
• Fiber: roughly 2 grams per 100 grams, which supports regular digestion.
• Vitamin K: a generous amount, for normal blood clotting.
• Vitamin C: a bonus, since dogs make their own.

A Low-Calorie Cabbage Treat for Dogs Watching Their Weight

Because cabbage is mostly water and fiber, a few small pieces can replace a richer biscuit for a dog slimming down, alongside a vet-guided plan and one of these dog foods for weight loss.

For a dog who loves the crunch but not the aftermath, plain green beans for dogs bring the crunch with less gas.

Cabbage Risks for Dogs: Gas, Thyroid and Choking

Gas and Bloating After Cabbage

Gut bacteria ferment the sugars and fiber in cabbage, and that makes gas. A little means a fragrant evening; too much can mean a sore belly, loose stools or vomiting. Mild upset settles within a day, and these home remedies for dog diarrhea cover gentle care while it does.

Cabbage, Thiocyanate and Thyroid Health in Dogs

Cabbage contains glucosinolates, which chewing breaks down into compounds such as thiocyanate that can stop the thyroid from taking up iodine. Livestock fed large amounts of Brassica plants have developed enlarged thyroids. For a dog, the concern is large, frequent helpings of raw cabbage, not an occasional spoonful, and the added iodine in complete dog foods helps offset it. Dogs treated for thyroid disease should check with their vet first.

Choking and Whole Cabbage Leaves

A whole leaf or a chunk of core can catch in the throat or form a wad in the gut of a dog who gulps. Chop leaves small and discard the core and thick stems. The same rule applies to carrots for dogs and other firm vegetables.

Cabbage and Bloat in Deep-Chested Breeds

Bloat, or gastric dilatation and volvulus, is an emergency where the stomach fills with gas and twists. No study shows cabbage causes it, but deep-chested breeds such as Great Danes, German Shepherds, Standard Poodles and Weimaraners are most at risk, so keep their servings especially small.

Red, Green, Savoy and Napa Cabbage for Dogs

Every common variety is safe. Green and savoy carry more vitamin K, while red cabbage has more vitamins C and A and gets its color from antioxidant anthocyanins. Softer, milder napa cabbage has fewer calories and less fiber, a gentle choice for small dogs.

Bok Choy, Brussels Sprouts and Other Cabbage Relatives

Bok choy, Brussels sprouts, kale, broccoli and cauliflower follow the same rules: plain, cooked, chopped and small. They share the same gas and thyroid considerations, so offer one at a time.

How to Prepare Cabbage for Your Dog

• Wash it, peel away wilted outer leaves, and cut out the core and thick ribs.
• Steam or boil the leaves until soft, with no salt, butter, oil or seasoning.
• Let it cool, then chop it into pieces sized for your dog.
• Start with one small piece in a regular meal and wait a day to see how the tummy handles it.

How Much Cabbage Can a Dog Eat?

Treats should stay under about 10 percent of daily calories, but with cabbage gas sets the limit first, so a few times a week is plenty. Per serving of cooked, chopped cabbage:

• Toy (under 10 lb): about 1 teaspoon.
• Small (10 to 25 lb): 1 to 2 teaspoons.
• Medium (25 to 50 lb): about 1 tablespoon.
• Large (over 50 lb): up to 2 tablespoons.

Puppies settled on solid food can try a tiny cooked piece, but their nutrition should come from a complete puppy food.

Cabbage Dishes Dogs Should Not Share

Plain cabbage is safe. Cabbage as an ingredient usually is not.

• Coleslaw: mayonnaise, sugar and often raw onion.
• Cabbage rolls: seasoned meat and rice, usually with onion and garlic, baked in a salty sauce.
• Colcannon: mashed with butter, cream and spring onion. Plain boiled potatoes for dogs are fine if set aside before the butter goes in.
• Corned beef or ham and cabbage: the cabbage soaks up salt and fat from the cured meat, the same reason ham is a poor treat for dogs.
• Sauerkraut and kimchi: salty brine, and kimchi almost always contains garlic and chili.

My Dog Ate a Lot of Cabbage: What to Watch For

A dog who raids a whole cabbage will most likely have a gassy, uncomfortable day. Keep fresh water out and watch for vomiting, diarrhea beyond a day, or a dog who seems flat and off their food.

Call your vet straight away for a swollen belly, retching that brings nothing up, drooling or pacing, which can signal bloat, and if the cabbage was moldy or cooked with onion or garlic. Keep the after-hours number in a dog first aid kit.

Sharing Cabbage With Your Dog

Cooked, chopped, plain and small covers almost everything, and your dog's digestion decides how often cabbage comes back to the bowl. For a crunchy snack with no gas at all, plain cucumber for dogs is an easy next one to try.

Sources

• Cornell University, Department of Animal Science. Glucosinolates (Goitrogenic Glycosides).
• Merck Veterinary Manual. Gastric Dilation and Volvulus in Small Animals.
• USDA FoodData Central. Cabbage, raw (SR Legacy 11109), and cabbage, cooked, boiled, drained, without salt (SR Legacy 11110).

About the author

Kosar Koohi

Editor at Pretty Fluffy

Kosar is the editor of Pretty Fluffy. Many of the site’s topics start with real questions from life with her Maltese, Yuki. The answers come from veterinary sources and research, written in plain language for everyday dog owners.

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