A study by Beltsville Human Nutrition Center in Maryland published in 2004 showed that cinnamon decreases sugar (carbohydrate) cravings by increasing insulin sensitivity. This enhances the ability of insulin to metabolize sugar. Also, using cinnamon as a flavoring on foods reduces the desire for something sweet.
Ceylon cinnamon bark or true cinnamon is recommended instead of Chinese cinnamon or cassia. Chinese cinnamon is similar in flavor to Ceylon cinnamon but does not have the same health benefits.
A daily amount of 1/2 tsp. or less of ground cinnamon bark is enough to curb carbohydrate cravings. Sprinkle it on fruit, cereal or in drinks three times a day. If using capsules, follow the label directions.
Ceylon cinnamon is generally safe in small amounts, but allergic reactions are possible. Cinnamon also contains a natural flavoring called coumarin which can damage the kidneys and liver if taken in large doses. Check with your doctor before taking cinnamon bark capsules.