Oat milk is lower in protein, usually containing around 1 to 3 grams of protein per serving, compared to the 6 and 8 grams of protein per serving found in regular milk and soy milk. Oat milk is also slightly higher in carbohydrates compared to other non-dairy milk, which should be considered for those that need to monitor their carbohydrate intake, such as those with diabetes. 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.