LEP and Hyperglycemia: In high-fat diet-induced obese mice and streptozotocin- or alloxan-induced diabetic rats, administration of L. plantarum, L. acidophilus, or L. casei resulted in reduction of body weight, hyperglycemia, epididymal fat, triglyceride, insulin and leptin, lipase activity, non-esterified fatty acids, triglyceride, low density lipoprotein (LDL)-cholesterol, LDL/HDL (high density lipoprotein) ratio, and adipocyte interleukin-1beta mRNA expression [40–43].