The betel nut, also known as the areca nut, grows on the areca tree in the tropical climates of Africa, India and the Philippines. Betel nut is a natural remedy for removing phlegm and eliminating body odor. Chewing the betel nut stimulates saliva production, which aids in digestion.
Betal nuts are also rich in arecoline, which increases stamina and alertness, as well as a sense of well-being. Drugs.com also asserts that men with schizophrenia experienced a reduction in symptoms as a result of consuming betel nuts. The betel nut also grows in regions of China, Sri Lanka, Japan and the East Indies.