INS and type 2 diabetes mellitus: A single-blind randomized controlled clinical trial carried out with 64 individuals with type 2 diabetes (males and females) showed that chamomile tea consumed three times per day significantly decreased concentrations of glycated hemoglobin and serum insulin, total cholesterol, triacylglyceride and low-density lipoprotein cholesterol (Rafraf et al., 2015[107]).