Can Dogs Eat Oats? Yes, Plain and Cooked, and Mostly Filler

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Quick Facts

This is our own research, not veterinary advice. For nearly every food there are many sources, and they do not always agree with each other. We check each claim against the veterinary and poison control sources, and we say plainly where they disagree. Even so, if you are in any doubt, contact a vet and do your own research before you feed anything to an animal in your care.

Plain cooked oats are safe for dogs, and the case for them is fibre. Cooked and plain, a spoonful mixed into a bowl is fine, and the preparation is simple enough to cover in one line. Whether a dog needs them is a different question, and my answer is that it probably does not. Oats are a filler: they bulk out food and make it cheaper, and they were never part of what a dog evolved eating.

I cannot recall ever feeding oats to a dog on purpose. The most I have done is hand over a small amount that was already cooked and cooled, just to give an animal something to taste. Never a bowl of it.

If I did make porridge for a dog it would be unsalted, unflavoured and properly cooled. The easiest way to do that is to make the porridge plain and flavour your own portion afterwards, rather than trying to season one pan for both of you.

The rest of what is safe is on the safe food list, and the rice page covers the other grain people reach for.

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Can Dogs Eat Oats? Yes, Plain and Cooked

Plain cooked oats are safe for dogs. They bring soluble fibre, iron, zinc and B vitamins, and the fibre is the useful part: it supports digestion, keeps an animal feeling fuller, and can help with stool formation.

Raw oats are the version to avoid. Uncooked grain is difficult to digest and tends to give a dog an upset stomach, so the preparation is not optional.

Cook them in water rather than milk, add no sugar and no salt, let them cool to room temperature, and start with a small amount mixed into the normal food. A cooked bowl of oats comes to about 71 calories and 1.7g of fibre per 100g, which is much lighter than dry oats at 379 calories and 10.1g, because most of what you are serving is water.

The Trap Is What Comes With Them

The oats themselves are rarely the problem. The problem is the bag they come in.

Granola, muesli and flavoured instant oats routinely carry raisins, chocolate, dried fruit, nuts and sometimes xylitol in the sugar-free versions. Raisins are genuinely toxic to dogs and chocolate is not far behind, so a bag of muesli is a considerably more dangerous object than a bag of oats.

The rule I use for anything with more than one ingredient is to be careful, because multi-ingredient foods genuinely can contain a lot of things. If you want to give oats at all, plain oats is the only version worth bothering with.

And this is where reading the label stops being fussy and starts being the whole method. I bought roasted peanuts recently and was genuinely surprised to find vegetable oils listed alongside the nuts and the salt. Peanuts are already oily. Roasting them should not need anything else, and yet there it was on the back of the packet.

That is the thing people do not realise. Something can look natural and straightforward, and the packaging still tells you it contains things you would never have considered. Which is why I stay away from processed and pre-packaged food for pets: you never really know what is in it, and the risk is bigger than the reward.

Oat Milk, and Why I Would Not

Oat milk is worth its own line because it has become the default in a lot of kitchens, and because it is a good example of a product that sounds wholesome and is not what it appears.

I drank it for years when I was vegan and I liked it. Then I started looking more closely at what was in it and found how much oil and sugar goes into making it palatable, and I stopped.

If I would not drink it myself, I am not going to hand it to an animal, and I am certainly not going to give it to somebody else's dog on a sit. There is no version of that where the animal benefits.

The Fibre Case, and Why I Am Not Convinced

The published case for oats is real, and I want to give it fairly. The fibre promotes digestion, helps an animal feel full for longer, and is genuinely useful for a dog that needs to lose a little weight or has loose stool. That is a legitimate use.

My own view, and it is opinion rather than science, is that oats are a filler. Dogs did not eat grain. It was never part of what they evolved on, so I struggle to see why it would be something they need now. It bulks out food, it makes food cheaper, and it does not add much beyond that.

What I would feed a dog of my own is raw meat, vegetables and berries. That is my preference rather than a rule for anybody else.

And I would say the same thing about cost that I would say about anything. Buying meat is expensive, and most people go for the cheaper option, and that is entirely the owner's right. A complete dry food with oats in it is not a scandal. It is a compromise most households make, and it is not my place to argue with it.

There is one thing worth adding, though. On my travels I met a woman who designed feed for livestock, adjusting the minerals and nutrients so it would do the most good, and who would not put anything else in her own dog's bowl besides raw mear. She was in a campervan at the time, which makes keeping raw food genuinely awkward, and she managed it regardless. The animal was a Belgian Malinois in pristine condition with a coat most dogs do not have. One dog is not evidence, and I am not presenting it as such. But it told me something about how the people who formulate animal food think about animal food.

How Much Oats

Treats of every kind should stay under about 10% of a dog's daily calorie intake, which is the standard most vets and the literature give. Oats are filling, so the limit is usually the fibre rather than the calories, and too much causes diarrhoea.

The published portions are given up to twice a week rather than daily.

Those calorie figures are our arithmetic on the published energy value of 71 kcal per 100g cooked. The portions are the ones the sources publish, and they are generous because cooked oats are mostly water.

How much of anything to give is its own subject, and feeding the wrong amount on a sit covers the broader side of it.

On a Sit: The Cereal Cupboard

On a sit the oats are usually in a cupboard next to the cereal, and the cereal is the more interesting object. A box of muesli with raisins in it is a far more realistic accident than a bag of plain oats.

On a sit the decision is not mine to make. If porridge is in the routine I make it the way the owner described. If it is not, it stays in the cupboard, because there is no upside and a small chance of a bad night.

The habit that covers this is asking before you improvise, and the pre-sit question list is where that starts.

If you do want a fibre source that a dog will actually enjoy, plain pumpkin does the same job with more enthusiasm, and green beans fill a dog up for almost nothing.

Where This Research Comes From

The sources behind this page:

Conclusion

Plain cooked oats are safe, and if a dog needs fibre they are a reasonable way to get it. Cook them in water, leave everything else out, and keep the portion small.

Whether they are worth bothering with is a different question, and my answer is no. Oats are a filler, and a dog does not need filling.

Caro and I have completed 20 house sits across 12 countries, driven 19,000km across Europe in our 1998 VW T4, and saved over $26,500 in accommodation costs over three years of house sitting.

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Frequently Asked Questions

• Can dogs eat oats?

  Yes, plain and cooked. They bring soluble fibre, iron, zinc and B vitamins. Cook them in water with no milk, sugar or salt, cool them, and keep the portion small.

• Can dogs eat raw oats?

  No. Uncooked oats are difficult to digest and tend to give a dog an upset stomach. They need to be cooked and cooled first.

• Can dogs eat porridge?

  Plain porridge made with water and cooled is fine in small amounts. Milk, sugar, salt, honey and jam are not. The easiest approach is to make the pan plain and flavour your own bowl afterwards.

• Can dogs eat granola or muesli?

  No. Granola and muesli routinely contain raisins, chocolate, dried fruit and nuts, and sugar-free versions can contain xylitol. Those are the dangerous ingredients, not the oats.

• Can dogs drink oat milk?

  I would not give it. Oat milk carries added oils and sugars to make it palatable, and there is nothing in it a dog needs.

• Are oats good for dogs?

  They are a useful source of fibre for a dog that needs it, and the fat content is low. My own view is that they are a filler rather than a food, because grain was never part of what a dog evolved eating.

• How much oatmeal can a dog have?

  A teaspoon to a tablespoon for a dog under 9kg, up to two thirds of a cup for a giant, and no more than twice a week. Too much fibre causes diarrhoea.

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