The recommended dietary allowance for ascorbic acid is 90 mg/day for men and 75 mg/day for women. A steady-state concentration of 80 μmol/L of ascorbic acid in plasma is maintained when sufficient fruits and vegetables are consumed daily. Oral dosing of 1.25 g of ascorbic acid can increase the plasma concentration to 134.8 ± 20.6 μmol/L.