Can Dogs Drink Oat Milk?

Oat milk is generally safe for dogs to consume in small amounts. The main ingredient in oat milk is oats, which are a safe and healthy grain for dogs. Oats provide dogs with fiber, vitamins, and minerals. However, oat milk also contains added sugars, which dogs should only have in moderation. Too much sugar can be harmful to a dog’s health. As long as your dog just has a small amount of oat milk occasionally, it should not cause any issues. But oat milk should not make up a significant part of a dog’s diet. It’s best to check with your veterinarian if you have any concerns about introducing oat milk to your dog’s diet.

silver spoon beside milk carton

Nutritional Value of Oat Milk for Dogs

Oat milk is made by blending oats and water together and then straining out the oat pulp. The resulting milk contains many of the nutrients found in whole oats, making it a potential healthy addition to a dog’s diet. Here are some of the main nutrients found in oat milk:


Oats contain decent levels of plant-based protein, with one cup providing around 5 grams. This plant protein contains all nine essential amino acids dogs need. The protein in oat milk can help support a dog’s muscles and tissues.

Dietary Fiber

One of the biggest advantages of oat milk is its high fiber content. One cup contains 2 grams of dietary fiber. This insoluble fiber helps promote digestive regularity in dogs and may aid heart health.

Vitamins and Minerals

Oat milk contains an array of important micronutrients for dogs. This includes manganese for bone health, phosphorus for cell repair, magnesium for immune support, iron for oxygen transport, and small amounts of calcium, potassium, and vitamins A, D, E and B vitamins.

Healthy Fats

The oats used to make oat milk contain healthy fats, including monounsaturated and polyunsaturated omega fatty acids. These provide dogs with energy and support skin and coat health.

So in terms of nutritional value, oat milk can be a nutritious drink for dogs. The protein, fiber, vitamins, minerals, and healthy fats it provides can make it a beneficial addition to a balanced doggy diet.

Benefits of Oat Milk for Dogs

Drinking moderate amounts of unsweetened oat milk can offer several health benefits for dogs:

Supports Digestion

The soluble fiber in oat milk can act as a prebiotic in a dog’s digestive tract, helping feed probiotic gut bacteria. This may boost digestive health and regularity. The insoluble fiber adds bulk to stool and may relieve constipation.

Boosts Immunity

The nutrients in oat milk, including vitamin A, zinc, and antioxidants, help strengthen a dog’s immune defenses to fight off illness and disease.

Provides Hydration

The liquid nature of oat milk can help add hydration to a dog’s diet, especially important on hot days or for dogs who don’t drink enough water.

May Help Manage Weight

The fiber in oat milk helps dogs feel fuller for longer, while the nutrients support a healthy metabolism. This one-two punch may aid dogs prone to obesity.

So in moderation, oat milk can provide several benefits for a dog’s health. Just be sure to choose unsweetened varieties and consult your vet first.

Potential Downsides to Giving Dogs Oat Milk

While oat milk does supply key nutrients, there are some potential downsides to giving it to dogs:

Lactose Intolerance

Some dogs are lactose intolerant, meaning they lack the enzyme needed to properly digest the milk sugar lactose. While oat milk doesn’t naturally contain lactose, some brands add milk derivatives like casein during production. This could cause gas, diarrhea, and stomach pain in lactose intolerant dogs.

Too Much Fiber

While the fiber in oat milk benefits most dogs, those with sensitive stomachs may get diarrhea from too much fiber. Starting with small amounts and monitoring stool is important.

Calories and Carbs

If choosing sweetened oat milk, the extra sugar and calories could lead to weight gain in dogs prone to obesity. The natural carbs in unsweetened oat milk also add to a dog’s calorie intake.

Nutritional Deficiencies

While oat milk contains many key nutrients, it lacks others. For example, it is low in fat-soluble vitamins A, D, E and K. Relying on it too much could lead to deficiencies over time.

So it’s important to keep an eye out for any signs of intolerance or imbalance when giving oat milk to dogs. Moderation is key.

Can Puppies Drink Oat Milk?

Oat milk can be fed to puppies in moderation, but there are some important caveats. Puppies need higher levels of protein, calories, vitamins, and minerals to support growth and development. Oat milk may not fully provide all puppy requirements.

It’s generally best to wait until puppies are fully weaned, around 8-12 weeks old, before introducing oat milk. Once ready, serve small amounts diluted with water and monitor puppy’s tolerance.

Don’t allow oat milk to replace high-quality puppy formula or dog milk replacer in young, unweaned puppies – these contain more balanced and complete nutrition.

Also limit intake for large breed puppies prone to developmental bone issues. Too much plant protein coupled with minerals like manganese found in oat milk could negatively impact their growing bones.

So feel free to give oat milk to puppies sparingly after weaning, but rely on puppy-specific feed or advice from your vet for most of their nutrition requirements.

How Much Oat Milk Can Dogs Drink Safely?

The amount of oat milk a dog can safely consume depends on their size and overall calorie needs. Some general guidelines are:

  • Small dogs under 20 lbs can have 1-2 tablespoons oat milk per day.
  • Medium dogs 20-50 lbs can have 3-4 tablespoons per day.
  • Large dogs 50-90 lbs can have up to 1/4 to 1/2 cup daily.
  • Giant breed dogs over 90 lbs can have up to 1 cup per day.

These serving sizes assume oat milk replaces some of your dog’s regular water intake. It’s best to split the allotted oat milk into a few servings per day rather than one large portion.

Watch your dog’s weight and energy levels when adding oat milk. Reduce the amount if they start to gain weight or suffer digestive upset. Some dogs may tolerate more or less than the above guidelines.

And remember – moderation is key when feeding oat milk. It shouldn’t represent more than 10% of their total daily calorie intake.

Tips for Serving Oat Milk to Dogs

Follow these tips for safely incorporating oat milk into your dog’s diet:

  • Choose unsweetened varieties free of added sugars, flavors or salt.
  • Gradually introduce oat milk over 3-5 days, starting with a few tablespoons to check for tolerance.
  • Serve chilled oat milk. Dogs may find it more palatable than warm.
  • Pour over kibble or mix into homemade dog food recipes.
  • Limit intake for young puppies or dogs with sensitivities.
  • Avoid giving on an empty stomach to reduce risk of digestive upset.
  • Don’t serve oat milk to dogs with kidney disease due to the added phosphorus.
  • Make sure plenty of fresh water is also available to aid hydration.

Consult your vet if you have any concerns about serving oat milk to your dog. They can advise you based on your dog’s health, life stage and circumstances.

The Verdict: Can Dogs Have Oat Milk?

Oat milk can be a nutritious, hydrating addition to a dog’s diet in moderation. The protein, fiber, vitamins, minerals and healthy fats it provides offer several health benefits. However, too much could lead to weight gain or nutritional imbalances.

Stick to a few tablespoons per day of unsweetened oat milk. Monitor your dog’s reactions closely at first and adjust serving sizes as needed. Avoid giving to very young puppies and dogs with sensitivities or kidney issues. Check with your vet if unsure.

Overall, oat milk is safe for most dogs in small amounts as an occasional treat. Just be sure to keep a close eye on your dog’s health and wellbeing when adding this plant-based milk to their diet.

Adam Docherty

Hi I'm Adam. At Pet Know How we aim to help you learn everything you need to about your pets.

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