Nitric Oxide Ultra (capsules) offers a blend of CranLoad® and citrulline to support healthy blood flow by targeting nitric oxide production and flow-mediated dilation. The formula centers around CranLoad®, a novel fruit blend developed as part of an extensive research program with the Institute of Nutrition and Functional Foods (INAF) and Université Laval in Quebec, Canada. CranLoad® delivers a unique cranberry and grape seed blend that has been the subject of several trials. Cranberries and grapes are particularly generous sources of proanthocyanidins and other polyphenols.