Pomegranate has many natural substances that act as extremely potent antioxidants. This supports the lining (endothelium) of the entire circulatory system, including the heart. Pomegranate was chosen as it has a unique and potent ability to protect NO production and maintain the natural substances in pomegranate (polyphenols) also have been shown to contribute to better heart and vascular health by increasing blood flow to all areas of the body and its organs.
As compared to other antioxidants like berries,  pomegranate offers a unique and potent protection for NO production and helping to maintain the produced NO by shielding it against oxidative stress, caused by free radicals. Studies associate polyphenols with contributing to better heart and vascular heath by controlling “bad” cholesterol (LDL) and improving “good” cholesterol (HDL), leading to less plaque that builds up in the arteries.
Making it even more compelling is that pomegranate may have other potent health benefits. One such benefit is that pomegranates synthesize a wonderful molecule Urolithin A which is being studied for its potential anti-aging benefits. For further discussion on this amazing health benefit being discovered