Lee , Yu-Mi, Petra Wolf, Hans Hauner, and Thomas Skurk. 2016. “Effect of a Fermented Dietary Supplement Containing Chromium and Zinc on Metabolic Control in Patients With Type 2 Diabetes: A Randomized, Placebo-Controlled, Double-Blind Cross-over Study”. Food & Nutrition Research 60 (June). https://doi.org/10.3402/fnr.v60.30298.