Dr Ali Khavandi
Once hydrogenated, unsaturated fats like cotton or vegetable oils would become solid at room temperature. The thinking was that because these trans fats were made from unsaturated ones, they were healthier than saturated fats. It was a misconception!
There was a peak of heart attacks and strokes during the 1980s and 90s. Eating them, it turns out, can also increase your risk of type-2 diabetes, so there’s little wonder that manufacturers, at the behest of governments, have been reducing the amount of trans fats in their products.