Oatly Skinny and Oatly Whole differ in the amount of fat, but have the same carbs, fiber, and protein content. So, it appears to be quite similar to skim milk,

Oatly Skinny and Oatly Whole differ in the amount of fat, but have the same carbs, fiber, and protein content. So, it appears to be quite similar to skim milk, which is milk with reduced fat (cream skimmed off), not watered down milk. What amazes me is the strong opinions people have about this topic.