French fries and chicken products from two global fast-food chains contain very high levels of artery-clogging “trans” fats, researchers warn.

In a review of trans fats in the same journal, Walter Willett at the Harvard School of Public Health in Boston, US, and colleagues, conclude that in the US alone, complete removal of the industrially-produced trans fats from food preparation could prevent up to 228,000 heart attacks per year in the US.

[Read](http://www.newscientist.com/article.ns?id=dn8989&feedId=online-news_rss20) (New Scientist)