New York (CNN) -- First it was trans fats. Then it was high-calorie fast food. Now, the New York City Health Department is tackling another diet enemy: salt.

• 纽约（有线电视新闻网）-先是反式脂肪，然后是高热量快餐。现在，纽约市卫生署又开始对付另一个饮食上的敌人：盐。