It's a tricky time for consumers, because the answer depends on the food — and some are losing trans fat only to hae another artery clogger take its place, that old nemesis saturated fat.

消费者需此机警，为答案依赖于食物──些仅仅用那古老的有害饱和脂肪——另动脉阻塞者来代替反义脂肪的位置。