Betel nut is sour in taste and improves health of teeth. It removes phlegm or Kapha from the body. It prevents constipation and increases the flow of saliva. When chewed it has the natural colour or maroon or red which secrets in to mouth. This acts as a cleansing agent which clears dental disorders. However, if taken in high amounts, betel nut can cause intoxication and causes loss of blood.