The article highlights a surge in exports of agricultural products from Korea to the United States, with citron tea and cigarette products experiencing significant growth, particularly due to their purported immunity-boosting properties. The article emphasizes the need for scientific evidence to support these health claims and calls for government support to promote these products as health functional food. The article also mentions the challenges faced by companies in meeting the varied certification requirements for functional food in different countries and introduces the new 'Functional Food Export Support Group' aimed at addressing these challenges.