New Delhi, Feb 24 (ANI): As per a study, supplements of beetroot juice may be helpful in enhancing exercise capacity in certain heart failure patients. Exercise capacity is a key factor for quality of life and even survival of these patients. The study examined the impact of dietary nitrate in the form of beetroot juice supplements on the exercise capacity of eight heart failure patients with reduced ejection fraction, a condition in which the heart muscle doesn't contract effectively and can't get enough oxygen-rich blood to the body. There are millions who suffer from heart failure. The ejection fraction of the heart is reduced in such cases and in almost half of all such people. Researchers found that the beetroot supplement resulted in significant increases in exercise duration, peak power and peak oxygen uptake while exercising. A second important aspect of the study is there were no untoward side effects from the dietary nitrate.