Dietary nitrate does not affect physical activity or outcomes in health older adults in a randomized, cross-over 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, cross-over randomized clinical trial using beetroot juice in older healthy participants, who were classified as normal weight and overweight. We tested whether consumption of beetroot juice (a rich source of NO3−) for one week would increase nitric oxide bioavailability via the non-enzymatic pathway and enhance 1) exercise capacity during an incremental exercise test, 2) physical capability, and 3) free-liv ing 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