Why
Oatmeal is high in fiber and gives B vitamins and linoleic acid. The AKC suggests about 1 tablespoon of cooked oatmeal per 20 pounds of body weight.
How to serve oatmeal
- Cook with water, not milk, and cool to room temperature.
- Plain rolled or steel-cut oats are better than instant.
Watch out for
- Never flavored packets: sugar, raisins or xylitol.
- Too much fiber can cause diarrhea or vomiting.
How much oatmeal 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 oatmeal it buys if oatmeal is the only treat that day. Oatmeal has about 71 kcal per 100 g; 1 cup (234 g) is about 166 kcal.
| Dog size | Daily treat budget | Max oatmeal a day |
|---|---|---|
| Small (10 lb) | 26 kcal | 37 g (a quarter of cup) |
| Medium (30 lb) | 59 kcal | 83 g (a third of cup) |
| Large (60 lb) | 100 kcal | 141 g (two thirds of cup) |
| Giant (90 lb) | 136 kcal | 192 g (three quarters of 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, Cereals, oats, regular and quick, unenriched, cooked with water (includes boiling and microwaving), without salt.
Other grains and bread: quick answers
| Food | Verdict | Short answer |
|---|---|---|
| Bread | Small amounts | A small piece of plain bread is safe, but it offers nothing useful. |
| Popcorn | Small amounts | Yes, plain air-popped popcorn with no butter, salt or unpopped kernels. |
| Raw bread dough | Toxic | No. Raw yeast dough can expand in the stomach and produce alcohol. |
| Quinoa | Safe | Yes. Plain cooked quinoa is safe and appears in some dog foods. |
| Rice | Safe | Yes. Plain cooked white rice is easy to digest and often used for upset stomachs. |
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
Is oatmeal safe for dogs?
Yes, plain, cooked with water, as an occasional treat.
How much oatmeal 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 83 g of oatmeal if it is the only treat that day.
Sources
- American Kennel Club, "Can Dogs Eat Oatmeal?" (updated Aug 22, 2025)
- 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.