Fats and Your Heart 1
Saturated fats and your heart
Diets high in saturated fats increase levels of LDL cholesterol, while diets low in saturated fats reduce LDL levels. On average, every 1% reduction in calories from saturated fats reduces total blood cholesterol levels by about 2 mg/dL—mostly from a decrease in LDL cholesterol.

Saturated fats raise LDL levels by reducing the removal of LDL from the blood by the liver.

Dietary cholesterol also raises blood cholesterol levels but not as much as saturated fats.