Research

Macro partitioning

High intake of trans fatty acids (partially hydrogenated vegetable fats) increases the risk of coronary heart disease by lowering HDL and raising LDL and lipoprotein(a).

Avoid foods made with 'partially hydrogenated oils' on the ingredient list. These trans fats are particularly harmful to heart health because they lower good cholesterol and raise bad cholesterol. Choose whole foods and minimally processed oils instead.

GoodSupportsHIGH confidence
Trans fatty acids reduce serum levels of HDL and increase the levels of LDL and lipoprotein (a), another lipid fraction positively associated with CHD risk.
Walter C. Willett · Science · 1994

Why this rating

Supported by prospective studies, case-control studies, and angiography data, though the paper notes the overall evidence for dietary fat's direct link to CHD is complex.

Source

Diet and Health: What Should We Eat?

Walter C. Willett · Science · 1994

narrative_reviewCited 1,012×
Read the paper

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →