LIMA, Peru -- Suffering from stress? Not feeling sexy? High in the Andean mountains, some locals believe putting frogs in a blender is the answer.

There is no scientific evidence confirming any medicinal benefits from frog juice. The frogs that Peruvians use are from remote Lake Titicaca and listed as critically endangered by the International Union for Conservation of Nature.

To make the mix at her food stand in Peru's capital, vendor Maria Elena Cruz grabs a frog from a small aquarium, and whacks its head on the countertop until it's dead.

Then she peels off its skin and drops the frog into a blender with carrots, the Peruvian maca root and honey. The juice comes out light green. Cruz serves it in glasses.

"Frog juice is good for anemia, bronchitis, bones, the brain, fatigue, stress and it is mostly children, adults, persons with anemia, respiratory issues and sometimes tuberculosis" who come to her stand, Cruz claims.

Customer Cecilia Cahuana, 35, believes this.

"I always come here to drink frog juice because it's good for the children, for anemia, bronchitis and also for older persons, it's extremely good," she said.

Dr. Tomy Villanueva, dean of the Medical College of Lima, says there is "no scientific evidence" that frog juice is a cure for anything, even though it has a place in Andean culture.