Associations Among 25-year Trends In Diet, Cholesterol And BMI From 140,000 Observations In Men And Women In Northern Sweden, Nutrition Journal, June 2012
"The increase in serum cholesterol coincided with the increase in fat intake, especially with intake of saturated fat and fats for spreading on bread and cooking."So, as carbohydrate intake declined and fat intake increased:
Serum cholesterol increased, even though there was greater use of cholesterol-lowering drugs:
That dip in cholesterol in the early 1990s came after an intervention program that saw the population cut their fat intake and up their carb intake.
But "after 2004, fat intake increased sharply which coincided with introduction of positive media support for a low carbohydrate high-fat (LCHF) diet." Cholesterol rose as fat rose.
These are not just correlations, but statistically adjusted associations.