The 6 Best Oat Milks of 2021, According to a Dietitian

Nutritious, fiber-rich milk

Our editors independently research, test, and recommend the best products; you can learn more about our review process here. We may receive commissions on purchases made from our chosen links.

Our Top Picks
With just three ingredients: filtered water, whole grain oats, and salt, it's as close to homemade as you can get.
Silk oat milk is fortified, so it’s also a good source of several micronutrients.
Delicious and creamy, it's great with cereal, cookies, and for baking.
If you love to add thick and creamy half and half or creamer to your coffee, this is a great choice.
Made specifically for making your favorite lattes, this whips up frothy and adds full bodied flavor to your morning beverages.
The rich, not too sweet flavor is perfect for when you’re craving a chocolatey treat.
It has a pleasant, creamy consistency and heats up and froths well for coffees and lattes.

Oat milk is a non-dairy milk alternative made from—you guessed it!—oats. In its simplest form, oat milk ingredients are just oats and water. But in order to get a deliciously flavored oat milk on the supermarket shelves, you’ll find some other ingredients on the label that help stabilize the product and keep it tasting great.

Nutritionally speaking, each brand of oat milk will have a different nutrient profile based on if it’s sweetened, unsweetened, fortified, or flavored. Typically, oat milk has less protein than other milks like dairy milk and soy milk. It also contains more carbohydrates than other plant-based milks, and sweetened versions will have more carbohydrates than dairy milk.

Oat milk does retain some of the fiber from the oats, so you’re getting about 2 grams of fiber per serving of oat milk you drink. And while taste is certainly a personal thing, oat milk is known to taste great and has a creamier texture than many other milk alternatives. This makes it appealing to those who desire a richer milk alternative than something like almond milk.

If you’re an oat milk lover or are just looking to try oat milk for the first time, we’ve rounded up the best ones, below.

Best Overall: Elmhurst 1925 Unsweetened Oat Milk


Elmhurst makes an Unsweetened Oat Milk that is as close to homemade as you can buy. Their unsweetened version of oat milk has just three ingredients: filtered water, whole grain oats, and salt. 

A one cup serving of Elmhurst Unsweetened Oat Milk provides 80 calories, 14 grams of carbohydrates, 2 grams of fiber, and 4 grams of protein. This oat milk doesn’t have any gums or emulsifiers and is gluten free, non-GMO, and vegan.

Elmhurst oat milk is shelf-stable, so you can stock up on a few cartons to keep in your pantry. They also make sweetened oat milk, which has 4 grams of added sugar per serving, and chocolate oat milk.

Stock Your Pantry

Note: The Amazon listing is for a six pack of 32-ounce cartons.

Best Budget: Silk Oat Yeah Plain Oatmilk

Silk Oat Yeah! Plain Oat Milk

Milk alternatives like oat milk can cost significantly more money than regular dairy milk. Non-dairy brand Silk makes an affordable and delicious oat milk that costs less and comes in a bigger 64 ounce carton.

Silk’s plain oat milk has 90 calories, 14 grams of carbohydrates, 4 grams of added sugar, and 2 grams of protein per one cup serving. One of the ingredients is sunflower oil, which provides 2.5 grams of heart healthy monounsaturated fat.

Silk oat milk is fortified, so it’s also a good source of several micronutrients including calcium, riboflavin, and Vitamins A, D, and B12. Silk also makes extra creamy, zero added sugar, and vanilla oat milks.

Best Tasting: OATLY! Oat Drink Organic

OATLY! Original OatMilk

One of the first brands to call attention to oat milk, Oatly makes really delicious tasting oat milk. Their original version is creamy and goes great with cereal, cookies, and in baking.

One cup of Oatly oat milk provides 120 calories, 16 grams of carbohydrates, 2 grams of fiber (1 gram of which is soluble fiber), and 3 grams of protein. It does have a small amount of saturated fat, 0.5 grams, because they include rapeseed oil in their recipe. It is fortified with vitamins and minerals like calcium and vitamin D.

You can purchase Oatly oat milk in a shelf stable version or refrigerated carton. In addition to the original oat milk, Oatly also makes chocolate oat milk, barista edition oat milk, low fat oat milk, and oat milk ice cream and yogurt.

Best for Coffee: Chobani Oat Plain Extra Creamy

Chobani Oat Plain Extra Creamy

You probably know Chobani for their popular Greek yogurt, but they also recently started selling oat milk, and it does not disappoint. If you love to add thick and creamy half and half or creamer to your coffee, you will love Chobani’s extra creamy plain oat milk.

One cup contains 120 calories, 11 grams of carbohydrates, 2 grams of fiber, 7 grams of added sugars, and 2 grams of protein. Since it’s fortified, this oat milk is an excellent source of calcium and a good source of Vitamins A and D.

Chobani makes their oat milk with organic, non-GMO oats. It is a gluten free product with no preservatives or artificial flavors. For something even creamier, chobani also makes oat milk coffee creamer.

Best for Lattes: Califia Farms Oat Barista Blend Milk

For oat milk lattes, you want an oat milk that heats and froths well like regular dairy milk. Many alternative milk brands make “barista blends” just for this purpose, and Califia Farms has an excellent oat version.

Made specifically for making your favorite lattes, this oat milk whips up frothy and adds full bodied flavor to your morning beverages. One cup has 130 calories, 14 grams of carbohydrates, 2 grams of fiber, 3 grams of added sugars, and 1 gram of protein. This oat milk is slightly higher in fat than others (7 grams per serving), but the fat helps the milk froth and adds flavor. 

This oat milk has no stabilizers or gums, is gluten free, carrageenan free, and non-GMO. The 32 oz carton is shelf stable, so you can always have a few cartons stocked in your pantry for when the latte mood strikes.

Stock Your Pantry

Note: The Amazon listing is for a six pack of 32-ounce cartons.

Best Chocolate: Planet Oat Oatmilk Dark Chocolate

Planet Oat Dark Chocolate Oatmilk

Planet Oat takes chocolate milk to the next level with their Dark Chocolate Oat Milk. The rich, not-too-sweet flavor is perfect for when you’re craving a chocolatey treat.

One cup of this dark chocolate oat milk has 140 calories, 2 grams of fat, 31 grams of carbohydrates, 3 grams of fiber, and 3 grams of protein. It’s definitely more of a treat than regular or unsweetened oat milk, because it has more added sugars at 11 grams per serving. 

Planet Oat dark chocolate oat milk is an excellent source of calcium and vitamins A and D. In addition to just drinking straight, you can also bake up chocolatey treats with it like brownies.

Best Low Sugar : Chobani Oat Zero Sugar Oat Drink

Chobani Zero Sugar Oat Drink

Chobani makes such good oat milk, we had to include two of their products. If you are looking for a low-sugar oat milk, the Chobani zero sugar oat milk is top of the list. It has a pleasant, creamy consistency and heats up and froths well for coffees and lattes.

Because there is no added sugar, this Chobani oat milk has less calories than the extra creamy variety, at 80 calories per cup. It also only has 9 grams of carbohydrates and 1 gram of protein per cup.

If you want to explore even more oat-based Chobani products, try their chocolate oat milk and oat milk yogurts.

Final Verdict

For a minimally processed oat milk that’s close to homemade, we choose Elmhurst Unsweetened Milked Oats (view at Amazon). With just three simple ingredients, add this oat milk to coffee, baked goods, or cereal. It has slightly more protein than other oat milks on this list and 2 grams of fiber per serving.

What to Look for in an Oat Milk

Gums and Emulsifiers:

Many plant-based milks, including oat milks, contain gums and emulsifiers as ingredients. These are added to plant-based milks to make the texture thicker and creamier. 

Examples of gums and emulsifiers you may see on the ingredients list are guar gum, xanthan gum, soy lecithin, and carrageenan. Most gums are naturally derived from complex carbohydrates, like legumes, trees, seaweed, and other plants. Other emulsifiers are synthetically made in laboratories.

Some of these additives may provide health benefits, including guar gum and xanthan gum because they are a source of soluble fiber. This type of fiber helps regulate bowel movements and can help lower blood cholesterol and sugar due to its binding effect.

Other additives, including carrageenan and some synthetically made emulsifiers may not be so great for our health. Some research shows that certain emulsifiers may contribute to Inflammatory Bowel Disease (IBD).

Added Sugar:

Oat milk sometimes has a significant amount of added sugar. Too much added sugar in the diet can have negative health side effects, and current recommendations say to limit added sugar to no more than 10 percent of your daily caloric intake.

To avoid drinking too much sugar from oat milk, aim for unsweetened and unflavored varieties for everyday drinking. The sweetened oat milks are best if you’re just using a splash of oat milk in your coffee or enjoying the occasional treat.

FAQs

What are the potential downsides to oat milk?

While oat milk is certainly delicious, it might not be the best alternative milk replacement depending on your needs and goals. If you want a non-dairy milk that is still a good source of protein, oat milk won’t cut it like soy milk will. Oat milk has 1-3 grams of protein per serving, while dairy milk and soy milk both have between 6 and 8 grams of protein per serving.

Oat milk is also slightly higher in carbohydrates than other non-dairy milks, since it’s made from a whole grain. Unsweetened oat milk has about 14 grams of carbohydrates per serving, compared to about 4 grams in unsweetened almond milk.

While oats are naturally gluten free, they’re often processed in facilities that also handle gluten-containing grains like wheat. If you have celiac disease or gluten intolerance, it’s important to buy oat milk that is certified gluten-free to avoid gluten contamination.

How can I make oat milk at home? 

Oat milk is easy to make at home if you have a blender and fine mesh strainer. Just blend 1 cup of oats with 4 cups of cold water together until smooth and creamy, about 30 seconds. Then, strain out the remaining oat sediment once or twice to get a creamy consistency.

If you want to add sweetness to homemade oat milk, try blending it with Medjool dates, maple syrup, or honey. Add flavor with vanilla or almond extract or your favorite warming spices including cinnamon, ginger, and cardamom.

What Experts Say

"Oat milk is a good alternative to cow’s milk if you’re looking for a great tasting, creamy non-dairy milk. It does have more calories than other non-dairy milks like almond milk. But, it also contains beneficial nutrients like beta-glucan, a soluble fiber associated with heart health. To get the most health benefits from oat milk, buy a version with no added sugars and minimal additives." —Nicole Bodin, MS, RD

Why Trust Verywell Fit?

Alex Aldeborgh is a Registered Dietitian with years of nutrition counseling, recipe development and brand work experience. When recommending products to clients or family and friends, she vets the nutritional information and health claims personally in relation to current research and dietary guidelines. 

Was this page helpful?
Article Sources
Verywell Fit uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Martino JV, Van Limbergen J, Cahill LE. The Role of Carrageenan and Carboxymethylcellulose in the Development of Intestinal InflammationFront Pediatr. 2017;5:96. doi:10.3389/fped.2017.00096

  2. Bhattacharyya S, Shumard T, Xie H, et al. A randomized trial of the effects of the no-carrageenan diet on ulcerative colitis disease activityNutr Healthy Aging. 2017;4(2):181-192. doi:10.3233/NHA-170023

  3. U.S. Department of Agriculture and U.S. Department of Health and Human Services. Dietary Guidelines for Americans, 2020-2025. 9th Edition. Published December 2020.