The Drawbacks of Oat Milk: Considerations for a Healthy Diet
While oat milk has gained popularity as a dairy-free alternative, it’s essential to acknowledge its potential disadvantages. Two nutrition experts, Courtney Pelitera and Lena Bakovic, shed light on the limitations of oat milk.
Here are some key considerations:
1. High Carbohydrate Content
Oat milk contains high levels of carbohydrates, with flavored varieties typically having 15-20 grams per 250 ml serving, and unflavored options having 10-20 grams.
This may not be suitable for individuals on a low-carb diet or those managing diabetes.

2. Low Protein Content
Oat milk provides significantly less protein compared to cow’s milk or soy milk, with approximately 3-4 grams per cup.
This can be problematic for individuals with low protein intake.
3. Potential Gluten Contamination
Despite oats being inherently gluten-free, oat milk may contain gluten due to cross-contamination during processing.
Individuals with celiac disease or gluten sensitivity must ensure they purchase certified gluten-free oat milk.
4. Risk of Blood Sugar Spikes
The combination of high carbohydrate and low protein content in oat milk can lead to blood sugar spikes, particularly in individuals with diabetes.
Flavored oat milk often contains excessive added sugars, exacerbating blood sugar fluctuations.
By understanding these potential drawbacks, consumers can make informed decisions about incorporating oat milk into their diets.