32. Margarine

Butter has repeatedly come under fire for its high saturated fat content, but its copycat margarine could be even worse.

While butter is made from animal fat, margarine comes from vegetable oils — which could be solidified through hydrogenation, which in turn produces trans fats. Some margarine brands may also contain emulsifiers, colorants and other additives.

Healthline says most margarine types, like soybean oil-based margarine, are high in polyunsaturated fats. They’re considered much healthier than saturated fat, but they don’t seem to have any significant effect on lowering the risk of death from heart disease.