Excessive sugar intake should not have been downplayed.
In an analysis of archived correspondence between the Sugar Research Foundation (today the Sugar Association) and several prominent Harvard nutrition researchers in the mid-1960s, it has been revealed that secret support was given in an attempt to shift the blame from sugar to fat as the culprit behind coronary heart disease. Not all the dots have been connected, but this gives insight into the food industry's attempts to influence food guidelines.
PositiveTip: Don't look for just one dietary demon! Choose a balanced diet based mostly on whole plant foods for good health.