Quick answer
Both are Level 2-3. Oat milk often has slightly more ingredients (including rapeseed/canola oil for creaminess). Unsweetened almond milk has fewer calories but also less protein, making it a lighter milk substitute overall. Processing levels are comparable across most brands.
Processing levels can vary significantly between brands and specific products within each category. Always check the ingredient list of the specific product you are considering. Use our product search to look up exact processing scores. These comparisons evaluate processing level and ingredient composition only. They do not account for taste, price, convenience, cultural significance, or individual dietary needs.
How do they compare by the numbers?
Sample products from each
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Frequently asked questions
Which plant milk is less processed?
They are comparable. Simple almond milk (almonds, water, salt) edges out oat milk (oats, water, oil, salt, enzymes). But most commercial versions of both include stabilizers and vitamins. Homemade versions of either are Level 1.
Why does oat milk contain oil?
Rapeseed or canola oil is added to oat milk to create the creamy, latte-friendly texture consumers expect. Without it, oat milk would be thinner and more watery. This is an additional processed ingredient not found in the simplest almond milks.
Which almond milk brands are the least processed?
Among major almond milk brands, look for products with 5 or fewer ingredients (almonds, water, salt, and maybe a gum stabilizer). Brands like Malk and Three Trees use minimal ingredients. Larger brands like Silk and Almond Breeze tend to add more stabilizers and vitamins, which increases the processing level slightly.