Dietary nitrate does not affect physical activity outcomes in health older adults in a randomized, crossover trial

Although dietary nitrate (NO3 −) ingestion appears to enhance exercise capacity and performance in young individuals, inconclusive findings have been reported in older people. Therefore, we conducted a double-blind, crossover randomized clinical trial using beetroot juice in older healthy participants, who were classified as n ormal weight and overweight. We tested whether consumption of beetroot juice (a rich source of NO3−) for 1 week would increase nitric oxide bioavailability via the nonenzymatic pathway and enhance (1) exercise capacity during an incremental exercise test, (2) physical capability, and (3) free-livi ng physical activity.

Source: Nutrition Research - November 13, 2016 Category: Nutrition Authors: Mario Siervo, Clio Oggioni, Djordje G. Jakovljevic, Michael Trenell, John C. Mathers, David Houghton, Carlos Celis-Morales, Ammar W. Ashor, Alan Ruddock, Mayur Ranchordas, Markos Klonizakis, Elizabeth A. Williams Source Type: research