Ingestible toothpaste was one solution to the problem of spitting and was developed by Dr. Ira Shannon of the Houston VA Medical Center. The product called NASAdent was a foamless toothpaste that could be swallowed., NASA, Tiny Fox Lab

Back in the 1960s, NASA worried that their moonwalking employees wouldn’t be able to maintain their dental hygiene. As a result, they developed a foamless, ingestible toothpaste called NASAdent.Tiny Fox Lab Facts

Preview photo credit:, NASA, Tiny Fox Lab