WASHINGTON — The Food and Drug Administration ordered milk labels changed Tuesday, to give Americans a better idea of how much fat is in that morning glass.

Those jugs of 2 percent milk that now are labeled “low-fat” will be renamed “reduced fat.”

Only 1 percent milk can be called “low-fat,” while skim milk, the healthiest choice, can be advertised as “fat-free” or “nonfat” milk.

The change comes after consumer advocates complained that Americans were misled into believing milk with 2 percent fat was healthier than it actually is.