Oat Milk: Is It Good for You?

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This dairy-free milk alternative is a great source of fiber, but it often contains added sugar

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Person pouring homemade oat milk into mug of coffee, with squeezed oats and fresh oats in a jar nearby

Oat milk has gone from trendy to everyday staple. You’ll find it in coffee shops, grocery stores and plenty of home refrigerators. But as more people make the switch, a common question comes up: Is oat milk good for you?

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The answer isn’t one-size-fits-all. Oat milk can be a healthy choice for many people. But it depends on the type you buy and your individual needs. Some can be nutritious, but others may have added sugars or fewer nutrients than you might expect.

We reached out to registered dietitian Julia Zumpano, RD, LD, to learn more about oat milk nutrition and what to know before you pour your next glass.

Oat milk is a dairy-free, plant-based milk. It’s made by soaking oats in water, blending them and then straining out the solids. What’s left is a liquid with a smooth, creamy texture. It goes well with everything, from coffee to cereal.

Many store-bought versions are fortified with vitamins and minerals to help match the nutrition of cow’s milk, explains Zumpano. Some brands also include ingredients like oils, salt or sweeteners to improve taste and texture. There are many types of this plant-based beverage, each with its own benefits and drawbacks.

So, is oat milk healthy? It can be, especially when it aligns with your individual nutrition needs and goals. Some of the top oat milk benefits include:

• It’s naturally dairy-free. Oat milk is a good option if you have a milk allergy or are lactose intolerant. It’s also popular if you follow a vegan eating plan.
• It’s often fortified with key nutrients. Many oat milks have added calcium, vitamin D and vitamin B12. These nutrients are important for bone health and energy levels, especially if you don’t consume dairy.
• It contains fiber. Unlike most plant-based milks, oat milk naturally contains fiber. Specifically, it has a soluble fiber called beta-glucan. This type of fiber may help lower cholesterol. “Beta-glucan is a key benefit of oat milk,” says Zumpano. “Regular intake has been linked to improved heart health.”
• It’s allergy-friendly. Oat milk is typically free from allergens, like nuts and soy, making it a great option for people with food allergies or sensitivities.
• It may be gentler on digestion. Oat milk is typically easier to digest than cow’s milk and other dairy products.

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Even with its benefits, oat milk isn’t perfect. Here are a few things to keep in mind if you’re considering this dairy-free option:

• It can be high in added sugar. Some flavored or sweetened versions contain added sugars. Even “original” varieties can have more sugar than you might think. “Always check the label,” advises Zumpano. “Look for unsweetened versions whenever possible.”
• It has more calories and carbs. Compared to other plant-based milks, oat milk tends to be higher in calories and carbohydrates. This is important to know if you’re trying to manage your weight or blood sugar.
• It’s lower in protein. Oat milk does contain minimal amounts of protein, but significantly less than cow’s milk or soy milk. Most oat milks provide about 2 to 3 grams per cup, compared to about 8 grams in dairy milk, which can matter if you’re relying on it as a protein source.
• It may raise your blood sugar more quickly. Because oat milk is naturally higher in carbohydrates, it can lead to a faster rise in blood sugar compared to unsweetened almond or soy milk. This is especially important to consider for those managing diabetes.
• It may come across gluten. Oats are naturally gluten-free, but cross-contamination can happen during processing. If you have celiac disease or gluten sensitivity, choose a certified gluten-free oat milk.

Oat milk is a healthy, plant-based milk that offers fiber and important nutrients. If you enjoy the taste and it works for your needs, it could be a smart addition to your daily routine. It’s important to reiterate that it’s also higher in carbs and lower in protein than some alternatives.

“It can be a good option for some people,” says Zumpano. “Just pay attention to labels and choose unsweetened, fortified versions whenever possible.”

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