Flexi Says: It is known that the skin of frogs produces chemicals to protect them from predators. Some of these compounds are toxic and are lethal to humans. Some of these substances have traditionally been used for thousands of years as remedies for infections, cancer, heart disorders, inflammation, bites, and allergies. However, there is no scientific study that proves the efficacy of these chemicals in curing the conditions listed above. The practice of using frog toxins to cure human disorders has led to the poaching of frogs resulting in their dwindling populations.