[rocannon]

Here's a summary of one of Stampfer's papers: https://www.hsph.harvard.edu/news/press-releases/higher-cons...

> The health effects of specific types of fats depended on what people were replacing them with, the researchers found... people who replaced saturated fats with unsaturated fats—especially polyunsaturated fats—had significantly lower risk of death overall ... People who replaced saturated fats with carbohydrates had only slightly lower mortality risk. In addition, replacing total fat with carbohydrates was associated with modestly higher [my emphasis] mortality. This was not surprising, the authors said, because carbohydrates in the American diet tend to be primarily refined starch and sugar, which have a similar influence on mortality risk as saturated fats.

This analysis is also based on the Nurses’ Health Study and the Health Professionals Follow-Up Study. Apparently, Stampfer finds the Nurses’ Health Study credible enough to support his conclusions.