Is there a reason why the pioneering and potentially important findings of Dr. Gualano (Gualano B, Creatine in type 2 diabetes: a randomized, double-blind, placebo-controlled trial. Med Sci Sports Exerc. 2011May;43(5) showing! ~1% decrease of HBa1c in patients taking creatine supplements even in the presence of metformin !) were not tested anywhere in larger clinical trials?