To OP's point, neither does the skim milk. The question is: which is more or less ultraprocessed? Intuitively you'd think the whole milk is closer to the real t

To OP's point, neither does the skim milk. The question is: which is more or less ultraprocessed? Intuitively you'd think the whole milk is closer to the real thing by any measure, even if both varieties are processed. Nonetheless I tend to agree with your point that there are probably better examples of food that are closer to ground truth in nature.