A new study shows that cinnamon is involved in insulin regulation and can lower blood sugars. This study helps to show that people with type 2 diabetes who took cinnamon supplements had greater reductions in blood glucose levels than those who took a placebo. Scientists have long suspected that cinnamon can help prevent blood sugar spikes and protect against insulin resistance, but how, exactly, has remained a mystery. And while some studies have suggested a strong effect, others have been inconclusive.  The objective of this study was to determine whether cinnamon improves blood glucose, triglyceride, total cholesterol, HDL cholesterol, and LDL cholesterol levels in people with type 2 diabetes. A total of 60 people with type 2 diabetes, 30 men and 30 women age 52.2 ± 6.32 years, were divided randomly into six groups. Groups 1, 2, and 3 consumed 1, 3, or 6 g of cinnamon daily, respectively, and groups 4, 5, and 6 were given placebo capsules. The cinnamon was consumed for 40 days followed by a 20-day washout period.  The results of this study demonstrate that intake of 1, 3, or 6 g of cinnamon per day reduces serum glucose, triglyceride, LDL cholesterol, and total cholesterol in people with type 2 diabetes, and suggest that the inclusion of cinnamon in the diet of people with type 2 diabetes will reduce risk factors associated with diabetes and cardiovascular diseases. The incidence of cardiovascular diseases is increased two- to fourfold in people with type 2 diabetes. It has been postulated that spices may play a role. Spices such as cinnamon, cloves, bay leaves, and turmeric display insulin-enhancing activity in vitro. Botanical products can improve glucose metabolism and the overall condition of individuals with diabetes not only by hypoglycemic effects but also by improving lipid metabolism, antioxidant status, and capillary function. A number of medicinal/culinary herbs have been reported to yield hypoglycemic effects in patients with diabetes. Examples of these include bitter melon, Gymnema, Korean ginseng, onions, garlic, flaxseed meal, and specific nutrients including α-lipoic acid, biotin, carnitine, vanadium, chromium, magnesium, zinc, and vitamins B3, E, and K. — J Acad Nutr Diet. 2016 Nov;116(11):1794-1802. doi: 10.1016/j.jand.2016.07.015. Epub 2016 Sep 8.