inclusion criteria * covid-19 positive test (outpatient testing), * age \>50 (chosen based greater risk for older patients to be vitamin deficient, age \>65 not used so as not to be too restrictive in the inclusion criteria) * experiencing symptoms for \<5 days prior to enrollment * able to read and write in english or spanish * able to access redcap daily * valid email address * current has a lancaster general health primary care physician exclusion criteria * covid-19 test ordered pre-procedure for asymptomatic screening * currently taking vitamin c supplements * currently taking melatonin supplements * currently hospitalized * deceased * currently pregnant * currently incarcerated

inclusion criteria * covid-19 positive test (outpatient testing), * age \>50 (chosen based greater risk for older patients to be vitamin deficient, age \>65 not used so as not to be too restrictive in the inclusion criteria) * experiencing symptoms for \<5 days prior to enrollment * able to read and write in english or spanish * able to access redcap daily * valid email address * current has a lancaster general health primary care physician exclusion criteria * covid-19 test ordered pre-procedure for asymptomatic screening * currently taking vitamin c supplements * currently taking melatonin supplements * currently hospitalized * deceased * currently pregnant * currently incarcerated

inclusion criteria - covid-19 positive test (outpatient testing), - age >50 (chosen based greater risk for older patients to be vitamin deficient, age >65 not used so as not to be too restrictive in the inclusion criteria) - experiencing symptoms for <5 days prior to enrollment - able to read and write in english or spanish - able to access redcap daily - valid email address - current has a lancaster general health primary care physician exclusion criteria - covid-19 test ordered pre-procedure for asymptomatic screening - currently taking vitamin c supplements - currently taking melatonin supplements - currently hospitalized - deceased - currently pregnant - currently incarcerated

inclusion criteria - covid-19 positive test (outpatient testing), - age >50 (chosen based greater risk for older patients to be vitamin deficient, age >65 not used so as not to be too restrictive in the inclusion criteria) - experiencing symptoms for <5 days prior to enrollment - able to read and write in english or spanish - able to access redcap daily - valid email address - current has a lancaster general health primary care physician exclusion criteria - covid-19 test ordered pre-procedure for asymptomatic screening - currently taking vitamin c supplements - currently taking melatonin supplements - currently hospitalized - deceased - currently pregnant - currently incarcerated