As a dietitian, I wish nutrition were simple, and I would be out of a job. That would be my goal, but that's not the reality.
The nutritional facts table is there. It's not perfect. I think it can be improved, but at least it doesn't risk telling people that diet soft drinks are healthy and milk is not. I can give you many examples of systems that try to oversimplify a complex thing. I truly understand that the complexity is a difficulty for people with low literacy, and I think we should improve the nutritional facts table, improve the education, and perhaps give back some of the credits to the wholesome, nutrient-rich foods.
Although I know that processed food is part of our diet, I don't think people are eating enough fruits, vegetables, whole grains, milk products, legumes, nuts, and so on. I could go on. Those are the foods that may be at risk with a system that oversimplifies nutrition.