Vitamin D3 and PTH serum concentrations in mice chronically fed EtOH and 25OHD2 (a), 1,25(OH)2D3 (b), or PTH (c). Statistical significance was determined by one-way ANOVA followed by Student-Newman Keuls post hoc analysis. #, P < 0.001, 36% EtOH versus corresponding PF control. ^, P ≤ 0.001, 36% EtOH versus 10% EtOH.