If you are like most people, you may well subscribe to the ONAAT fallacy. I am more confident, however, that you don't know what it is. That's because I just made up the name, although not the concept.
The 'ONAAT' fallacy stands for 'one nutrient at a time.' It's the false, but insidiously persistent notion, that the nutritional quality of a food, or the relevant nutrition guidance for a given patient, can in fact be gauged just that way, one nutrient at a time.
Having devoted years of effort to the development of a nutrition guidance system that can function as 'GPS for the food supply,' providing summative information about overall nutritional quality -- I find the proliferation of so-called "attribute systems" (e.g., this one, this one, and this one and others like them) that call out one or more attributes of a food a potential threat to progress in this area.
My physician colleagues are, with all due respect to our clan, a major reason the ONAAT fallacy was set in motion, and propagated. Because of relative neglect of nutrition in medical education, physicians tend to ignore the topic, or when addressing it at all, to offer limited and discrete advice directly related to their field.