Ключевые слова: addiction, addictive, areca, asia, asian, background, betel, betelnut, calcium, chew, chewing, cuisine, culture, eating, essential, evergreen, flavor, food, fresh, fruit, green, gum, healthy, heart, herbal, india, indian, indonesia, ingredient, isolated, leaf, lime, medicine, nature, nut, organic, paan, palm, palmae, piper, plant, traditional, vietnam, white,