IL6 and vitamin D deficiency: Furthermore, in the study conducted by Nata et al. on hemodialysis patients with vitamin D deficiency, showed that high-dose ergocalciferol supplementation (in patients with serum 25(OH)D levels from 20 to 29.9 ng/ml: 100,000 units monthly for 2 months, and in patients with less than 20 ng/ml: 100 000 units weekly for 2 months) had a greater reduction effect on IL-6 than supplementation with conventional dosage (in patients with serum 25(OH)D levels from 20 to 29.9 ng/ml: 50,000 units monthly for 2 months, and in patients with less than 20 ng/ml: 50,000 units weekly for 2 months).