Just one portion of fried food a week 'could lead to increased risk of serious heart disease'

Researchers from universities in China collaborated on the study, which found that 114g of fried food, equivalent to a medium portion of French fries, could have serious long-term health implications.

They pooled data from 23 studies, which involved more than one million participants, to assess the association between cardiovascular disease risk and fried food consumption.

Those who eat a high amount of the unhealthy food have a 28 per cent heightened risk of major cardiovascular events; a 22 per cent increase of developing coronary heart disease; and a 37 per cent higher chance of heart failure, compared to those who don't eat fried food on a regular basis.

And the risks increased by three per cent, two per cent, and 12 per cent, respectively, with each additional 114g serving of fried food.

Researchers suggested that while the effect fried foods have on the onset of cardiovascular disease isn't clear, it could be due to the harmful trans fatty acids from the hydrogenated vegetable oils used to cook them.

Frying food also boosts the production of potentially toxic compounds in the oil, and foods such as fried chicken or potatoes usually have high amounts of added salt, which is also bad for heart health.