The Saturated Fat Studies: Set Up to Fail

Have you ever seen studies claiming that dietary cholesterol and saturated fat have no correlation to heart disease?  Dr. Michael Greger explains how we’ve known since 1979 that cross-sectional population studies will unavoidably show a zero correlation between diet and heart disease because of the large differences between individual cholesterol levels.  Cross-sectional studies lack the statistical power to show a correlation, which is why the vast bulk of evidence linking heart disease to diet comes from metabolic ward and free living dietary change experiments.


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