Abstract：
BACKGROUND: This study aimed at reviewing effective food hygiene principles and dietary intakes to reinforce the immune system for prevention of corona virus disease 2019 (COVID-19).
METHODS: The systematic literature search was performed in three databases from Jan. 2020 up to 10th July 2020. English articles that focused on nutrition, food, immunity and corona virus were searched. Systematic and narrative reviews were included.
RESULTS: After evaluation of search papers, 27 relevant articles were used in this review. The importance of nutrients, phytochemicals, probiotics and some spices were highlighted for enhancing immunity during the COVID-19 pandemic. A healthy dietary pattern with proper energy intake provides sufficient nutrients. The unhealthy dietary pattern is linked with inflammation and risk factors related to high mortality in patients with severe COVID-19 infection. Different thermal procedures have been used for the inactivation of viruses. It is recommended not to consume raw or undercooked animal products.
CONCLUSIONS: It is critical to ensure that the nutritional needs of the population are met and sustained based on standards during a COVID-19 pandemic. Clear advice on adequate calorie intake and an optimal healthy diet to support the immune function should be provided. Good hygiene practices must be performed by everyone and done in the food industry.
METHODS: The systematic literature search was performed in three databases from Jan. 2020 up to 10th July 2020. English articles that focused on nutrition, food, immunity and corona virus were searched. Systematic and narrative reviews were included.
RESULTS: After evaluation of search papers, 27 relevant articles were used in this review. The importance of nutrients, phytochemicals, probiotics and some spices were highlighted for enhancing immunity during the COVID-19 pandemic. A healthy dietary pattern with proper energy intake provides sufficient nutrients. The unhealthy dietary pattern is linked with inflammation and risk factors related to high mortality in patients with severe COVID-19 infection. Different thermal procedures have been used for the inactivation of viruses. It is recommended not to consume raw or undercooked animal products.
CONCLUSIONS: It is critical to ensure that the nutritional needs of the population are met and sustained based on standards during a COVID-19 pandemic. Clear advice on adequate calorie intake and an optimal healthy diet to support the immune function should be provided. Good hygiene practices must be performed by everyone and done in the food industry.
摘要：
背景：这项研究旨在回顾有效的食品卫生原则和饮食摄入量，以增强免疫系统以预防2019年冠状病毒病（COVID-19）。
方法：自1月起在三个数据库中进行了系统的文献检索2020年至2020年7月10日。以营养为重点的英文文章，食物,免疫和冠状病毒进行了搜索。包括系统和叙述性审查。
结果：经过对检索论文的评估，本综述使用了27篇相关文章。营养的重要性，植物化学物质,在COVID-19大流行期间，益生菌和一些香料被强调可以增强免疫力。具有适当能量摄入的健康饮食模式提供足够的营养。不健康的饮食模式与严重COVID-19感染患者的炎症和与高死亡率相关的危险因素有关。已经使用不同的热程序来灭活病毒。建议不要食用生的或未煮熟的动物产品。
结论：在COVID-19大流行期间，确保满足和维持人口的营养需求至关重要。应提供足够的卡路里摄入量和最佳健康饮食以支持免疫功能的明确建议。每个人都必须执行良好的卫生习惯，并在食品工业中完成。
方法：自1月起在三个数据库中进行了系统的文献检索2020年至2020年7月10日。以营养为重点的英文文章，食物,免疫和冠状病毒进行了搜索。包括系统和叙述性审查。
结果：经过对检索论文的评估，本综述使用了27篇相关文章。营养的重要性，植物化学物质,在COVID-19大流行期间，益生菌和一些香料被强调可以增强免疫力。具有适当能量摄入的健康饮食模式提供足够的营养。不健康的饮食模式与严重COVID-19感染患者的炎症和与高死亡率相关的危险因素有关。已经使用不同的热程序来灭活病毒。建议不要食用生的或未煮熟的动物产品。
结论：在COVID-19大流行期间，确保满足和维持人口的营养需求至关重要。应提供足够的卡路里摄入量和最佳健康饮食以支持免疫功能的明确建议。每个人都必须执行良好的卫生习惯，并在食品工业中完成。
