It's information that proud parents of U.S. Navy sailors just don't want to hear: their child may be eating lousy food while fighting a war in the Middle East.

Gut-turning pictures of food served to service members on two major U.S. warships fighting the Iran war, shared with USA TODAY by concerned family, prompted an outcry online and outrage among some national leaders. And family and friends of sailors and Marines remain worried that the meals served to their loved ones deployed at sea are not keeping them nourished and well fed.

The Pentagon denies any food issues on ships. But they haven't offered an explanation for the photos and claims of family members, which have prompted at least one U.S. lawmaker to call for a Congressional probe.

"This is completely unacceptable and Congress must investigate," Rep. Mike Levin, a Democrat from California, wrote on social media. "The most powerful military in the world is failing to adequately feed its own troops."

Sen. Elizabeth Warren, a Democrat from Massachusetts, said President Donald Trump “is spending billions of dollars every day on this illegal war with Iran while American troops on the front lines say they are going hungry."