A 2012 study found that countries where people consumed the most black tea had the lowest rates of type 2 diabetes. Antioxidants in the tea leaves may enhance insulin activity. Adding cinnamon can make a good thing even better: According to research in Diabetes Care
, consuming just one-third of a teaspoon of cinnamon a day can reduce levels of glucose in people with type 2 diabetes.
Cynthia Gold, tea sommelier at Boston's L'Espalier
, recommends pouring 8 ounces boiling water over 2 black tea bags and 1 cinnamon stick (about 2 tsp. powdered). Steep 4 minutes. Let cool; transfer to an ice-filled glass; top with 2 ounces club soda.