When fats and oils are heated the molecular structure changes, producing chemicals called aldehydes that may cause heart disease and cancer. Professor Grootveld’s team found sunflower oil and corn oil ...

Saturated fats (such as butter and lard), we are told, are bad for us, and polyunsaturated fats (such as sunflower ... dangerous, chemical reactions occur which alter the molecular structure ...

When it comes to choosing an oil or fat for cooking your food ... oils and fats are heated in frying or cooking, their molecular structure changes. "They undergo what's called oxidation - they ...

Scientists warn against the dangers of frying food in sunflower oil ... Toxic cooking oil Martin Grootveld, a professor of bioanalytical chemistry and chemical pathology, said that his research ...

The results of a series of experiments threaten to turn on its head official advice that oils rich in polyunsaturated fats - such as corn oil and sunflower oil - are better for the health than the ...