Cinnamon
A spice produced from the bark of Cinnamomum cassia, that has been shown in some (but not all) studies to improve insulin sensitivity and glucose control. Cinnamon or cinnamon extracts are often added to both weight loss and carb-containing pre-workout/NO-boosting supplements. Supplement labels may list it as “Cinnamon bark extract,” “Cassia extract,” “Cassia” or “Cinnulin PF” – which is a proprietary cinnamon extract.
