This was recently published the August Journal of the American Medical Association (JAMA):
“Nutritional science has advanced rapidly, and the evidence now demonstrates the major limitations of nutrient-based metrics for prevention of chronic disease. The proportion of total energy from fat appears largely unrelated to risk of cardiovascular disease, cancer, diabetes, or obesity. Saturated fatâ??targeted by nearly all nutrition-related professional organizations and governmental agenciesâ??has little relation to heart disease within most prevailing dietary patterns. Typical recommendations to consume at least half of total energy as carbohydrate, a nutrient for which humans have no absolute requirement, conflate foods with widely divergent physiologic effects (eg, brown rice, white bread, apples). Foods are grouped based on protein content (chicken, fish, beans, nuts) despite demonstrably different health effects. With few exceptions (eg, omega-3 fats, trans fat, salt), individual compounds in isolation have small effects on chronic diseases. Thus, little of the information found on food labelsâ?? â??nutrition factsâ?? panels provides useful guidance for selecting healthier foods to prevent chronic disease.”
Maybe the medical community will wise up, but it will take probably another 10 years.