The evidence that saturated fat causes atherosclerosis and heart disease is compelling. It’s consistent across randomized trials, large observational epidemiologic studies, and animal studies.
Saturated fat increases LDL, or low-density lipoprotein, cholesterol. And LDL cholesterol is a cause of heart disease. It’s not a risk factor. It’s a direct, absolute cause..
It all fits very, very well. And that builds a powerful case that saturated fat causes heart disease, and it is healthful to replace it with unsaturated fat, especially polyunsaturated fats like those in soybean oil, mayo, nuts, and fish.
Source: Nutrition Action Health Letter November 2017 by Frank Sacks ia professor of cardiovascular disease prevention at the Harvard T.H. Chan School of Public Health and professor of medicine at Harvard Medical School. He has lead ground breaking clinical trials on diet and blood pressure, lipids, and weight loss.
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