The Relationship Between Nutritional Knowledge Related to Immunity and History Of Covid-19 Illness and Vitamin C Intake in Women Of Fertilizing Age in Bojonegoro

Background: Coronavirus Disease is an infectious disease caused by the SARS Cov-2 virus. Someone who has a history of COVID-19 illness complains of several ongoing symptoms and even experiences substantial organ dysfunction after being exposed toSARS-Cov-2 infection. Vitamin C contributes to maintaining immunity by supporting various cellular functions of the innate and adaptive immune systems. This study aims to determine the relationship between nutritional knowledge and history of COVID-19 illness with vitamin C intake. Method: This type of study used a cross-sectional design. The population used was women of childbearing age (WUS) with a sample of 88 respondents using simple random sampling technique. The research was conducted in April 2023. The instruments used were a questionnaire and the SQ-FFQ form. Then the data analysis test used was the chi-square test. Result: The results showed that there was a relationship between nutritional knowledge and a history of COVID-19 illness and intake of vitamin C with p values <0.000 and <0.008 with odds ratios of 10,633. Conclusion: Knowledge of nutrition can shape behavior and create actions that determine a person's nutritional intake. In a history of COVID-19 illness, post-COVID-19 symptoms can cause chronic inflammation which will spread to other tissues and the bloodstream so that vitamin C has a role as an electron donor so that immune cells are protected fromdamage by free radicals.