WHO: "Micronutrients, such as vitamins D and C and zinc, are critical for a well-functioning immune system and play a vital role in promoting health and nutritional well-being. There is currently no guidance on the use of micronutrient supplements as a treatment of COVID-19."微量營養素例如維生素D與C以及鋅,都對健康免疫系統相當重要,也在健康促進與營養完善上扮演關鍵角色。目前並沒有利用微量營養素補充品來治療COVID-19的指引。"