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3-D printing offers nutrition on the front lines

Soldiers in war zones often deal with limited access to appetizing or healthy food. The solution may come in the form of custom 3-D printed rations.

The United States Army has made strides in technology that it hopes will one day allow soldiers to print food with custom ingredients and nutrients, Grub Street reported. The printers use "ultrasonic agglomeration," whereby ultrasonic waves melt and morphs ingredients to the food soldiers seek.

A Meal-Ready-to-Eat is shown at the National Museum of the Marine Corps in Triangle, Va.
Sarah L. Voisin | The Washington Post | Getty Images
A Meal-Ready-to-Eat is shown at the National Museum of the Marine Corps in Triangle, Va.

Read MoreHas the 3-D printing bubble already burst?

The Army has figured out how to make snacks and is on its way to achieving pasta, according to Grub Street. The technology would mark an improvement over previous forms of 3-D printed food, which usually take the form of food paste.

Read Grub Street's full story here.

—By CNBC

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