The latest Dietary Guidelines for Americans are out, and our friend Marion Nestle brings up an interesting finding. The guidelines encourage patterns when it comes to positive behavior (e.g.- "Focus on variety, nutrient density, and amount") and specific nutrients when it comes to negative eating behavior (e.g.- "Limit calories from added sugars and saturated fats and reduce sodium intake.")
Why is this? Nestle contends the answer is simple: politics.
"Recall that Congress weighed in with an Appropriations Bill that called for an investigation of the scientific basis of the Guidelines and granted $1 million to the National Academy of Medicine to take them over.