Effects of Vitamin D3 and Psyllium Husk Supplementation on Glycemic Control in Adults with Type 2 Diabetes Mellitus: A 12-Week Randomized Controlled Trial

In adults with type 2 diabetes mellitus, what impact does daily vitamin D3 supplementation (2000 IU/day) combined with psyllium husk (12 g/day), compared with placebo, have on glycemic control, as measured by HbA1c and HOMA-IR, over a 12-week period?