Cinnamon (Cinnamomum zeylanicum) may provide a breakthrough for diabetics, according to research published in the journal 'diabetes care'. The full scale human trial revealed that this well known spice can help to regulate blood sugar levels and reduce cholesterol in patients with type 2 diabetes. Cinnamon may also be helpful for those looking for a 'preventative' supplement to control blood sugar - and researchers have reported no side effects or contraindications with other medication. Rio Cinnamon capsules provide 250mg of extract, equivalent to 1000mg fresh herb.