WASHINGTON — A surprising new report questions public health efforts to get Americans to sharply cut back on salt, saying it’s not clear whether eating super-low levels is worth the struggle.

Make no mistake: Most Americans eat way too much salt, not just from salt shakers but because of sodium hidden inside processed foods and restaurant meals. Tuesday’s report stresses that, overall, the nation needs to ease back on the sodium for better heart health.

But there’s no good evidence that eating very low levels — below the 2,300 milligrams a day that the government recommends for most people — offers benefits even though national guidelines urge that certain high-risk patients do just that, the Institute of Medicine concluded.

Read more in Wedneday’s Arizona Daily Star or StarNet.