After You Eat Walnuts: This Is What Really Happens to Your Cholesterol

Walnuts can help lower LDL cholesterol not by acting as a medicine, but by providing polyunsaturated fats that improve how the liver clears cholesterol from the blood. The benefit is most significant when walnuts replace saturated fats in the diet. While human trials show modest reductions in lipid levels, walnuts are a dietary tool rather than a replacement for medical treatment.