Recent research on maple syrup have found that it has a variety of polyphenols, compounds which are beneficial and found also in berries, tea, and flaxseed for example. According to Dr. Navindra Seeram, an assistant Pharmacy professor at the University of Rhode Island. Preliminary findings by Dr. Yves Dejardins, a plant physiology researcher at Laval University in Quebec, discovered that maple syrup may also be able to regulate blood glucose levels and help people suffering from Type II diabetes. The results are still being refine so if you want a little wholesome sweetness be moderate. Regardless of its benefits, Maple Syrup is still a type of sugar and it has calories. More studies on this sweet project.
More about Maple Syrup history
http://www.slideshare.net/Cascard/maple-syrup-festival-sugarbush-mapletree-sweetsyrup
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You Are What You Eat 