Relationship of zinc status with depression and anxiety among elderly population

•Low level of serum zinc was observed among 23.2% of participants.•Dietary intake of zinc in 72.4% of participants was less than EAR.•The total depression and anxiety prevalence were 42.2% and 52.5% respectively.•Participants in the 3rd tertile of serum zinc concentration had 51% lower depression chance compared to the 1st one.