Can potatoes prevent underarm odor?

According to a Good News report by Love Anover, applying sliced potatoes on your underarms can kill bacteria and prevent body odor.

Potatoes can change the body's pH and kill bacteria that thrive in low acidic environments, such as those found in one's underarms.

"Slice the potatoes and then massage them on your underarms to prevent sweating," said Dr. Marieta Santos, a dermatologist.    

She advises people to try the 'patatas' regimen after every bath.

Aside from the 'patatas' regimen, there are many other natural ways to prevent body odor, like creating a homemade deodorant from items in one's kitche, and using hand sanitizer to prevent foot odor. — Angelica Y. Yang/LA, GMA News