The USA’s Food and Drug Administration has given all food manufacturers three years to deliver trans fatfree (i.e. all the products you get from making fat from vegetable oils ) products, as CNN reports.

Trans fats are also found in animal products such as cows’ milk, but in vastly smaller quantities than in partially hydrogenated vegetable fats.

The CNN report includes a great quote from Dr Steven Nissen (cardiovascular medicine, Cleveland Clinic):

“In many ways, trans fat is a real tragic story for the American diet,” Nissen said. “In the 1950s and ’60s, we mistakenly told Americans that butter and eggs were bad for them and pushed people to margarine, which is basically trans fat. What we’ve learned now is that saturated fat is relatively neutral – it is the trans fat that is really harmful and we had made the dietary situation worse.”