Why
Brussels sprouts are packed with nutrients and antioxidants but can cause a lot of gas.
How to serve brussels sprouts
- Steam plain and halve or quarter.
Watch out for
- Start with one or two.
How much brussels sprouts can a dog eat?
Treats of every kind should stay under 10% of a dog's daily calories, says the World Small Animal Veterinary Association. Here is that daily treat budget by size, and how much brussels sprouts it buys if brussels sprouts is the only treat that day. Brussels sprouts has about 36 kcal per 100 g; 0.5 cup (78 g) is about 28 kcal.
| Dog size | Daily treat budget | Max brussels sprouts a day |
|---|---|---|
| Small (10 lb) | 26 kcal | 73 g (one 0.5 cup) |
| Medium (30 lb) | 59 kcal | 165 g (about 2 0.5 cup) |
| Large (60 lb) | 100 kcal | 278 g (about 4 0.5 cup) |
| Giant (90 lb) | 136 kcal | 378 g (about 5 0.5 cup) |
Less is better for small, overweight or diabetic dogs. Work out your own dog's numbers with the dog food calculator. Calories: USDA FoodData Central, Brussels sprouts, cooked, boiled, drained, without salt.
Other vegetables: quick answers
| Food | Verdict | Short answer |
|---|---|---|
| Asparagus | Avoid | Not unsafe, but not worth it. Asparagus is tough raw and loses most of its value when cooked soft. |
| Mushrooms | Avoid | Store-bought mushrooms are generally fine, but wild mushrooms can be deadly. |
| Tomatoes | Avoid | Best avoided. Ripe flesh is generally safe, but the green parts of the plant contain a toxin. |
| Broccoli | Small amounts | Yes, in small amounts. Cooked florets are easiest on the stomach. |
| Corn | Small amounts | Yes, off the cob. The cob can cause a dangerous blockage. |
| Peas | Small amounts | Yes, plain green peas in moderation. |
| Potatoes | Small amounts | Yes, plain and fully cooked, as an occasional extra. Never green or raw. |
| Spinach | Small amounts | A little is safe, but spinach is not a top choice for dogs. |
Rules for any new food
- Plain is the rule: no salt, butter, oil, onion, garlic, sugar or sweeteners. Most of the danger in human food comes from what is added to it.
- Keep all treats under 10% of your dog's daily calories (WSAVA). The rest should come from a complete dog food.
- Check labels for xylitol, raisins, chocolate and macadamia nuts, which turn up in baked goods, snacks and spreads.
- If your dog has a health condition, such as diabetes, pancreatitis or kidney disease, ask your vet before adding any new food.
Frequently asked questions
Are brussels sprouts safe for dogs?
Yes, a few cooked sprouts. Expect gas.
How much brussels sprouts can a dog eat?
Treats of any kind should stay under 10% of a dog's daily calories (WSAVA). For a 30 lb dog that is about 59 kcal a day, or roughly 165 g of brussels sprouts if it is the only treat that day.
Sources
- American Kennel Club, "Fruits and Vegetables Dogs Can and Can't Eat" (updated Aug 4, 2026)
- WSAVA Global Nutrition Committee, "Feeding treats to your dog"
- USDA FoodData Central, SR Legacy (April 2018 release)
Checked October 17, 2026. We are a reference, not a vet: if in doubt, call yours. How we check.