Next Article in Journal
Dietary Compound Resveratrol Is a Pan-BET Bromodomain Inhibitor
Previous Article in Journal
Food-Related Impulsivity in Obesity and Binge Eating Disorder—A Systematic Update of the Evidence
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessReview
Nutrients 2017, 9(11), 1171; doi:10.3390/nu9111171

Performance and Health Benefits of Dietary Nitrate Supplementation in Older Adults: A Systematic Review

1
School of Sport, Exercise and Nutrition, Massey University, Auckland 0745, New Zealand
2
School of Health Sciences, Massey University, Auckland 0745, New Zealand
3
Centre for Metabolic Health Research, Massey University, Auckland 0745, New Zealand
4
School of Health Sciences, Massey University, Wellington 6140, New Zealand
*
Author to whom correspondence should be addressed.
Received: 18 September 2017 / Revised: 19 October 2017 / Accepted: 24 October 2017 / Published: 27 October 2017
View Full-Text   |   Download PDF [375 KB, uploaded 27 October 2017]   |  

Abstract

Supplementation with nitrate (NO3)-rich beetroot juice has been shown to improve exercise performance and cardiovascular (CV) responses, due to an increased nitric oxide (NO) availability. However, it is unclear whether these benefits are greater in older adults who have an age-related decrease in NO and higher risk of disease. This systematic review examines 12 randomised, crossover, control trials, investigating food-based NO3 supplementation in older adults and its potential benefits on physiological and cognitive performances, and CV, cerebrovascular and metabolic health. Four studies found improvements in physiological performance (time to exhaustion) following dietary NO3 supplementation in older adults. Benefits on cognitive performance were unclear. Six studies reported improvements in CV health (blood pressure and blood flow), while six found no improvement. One study showed improvements in cerebrovascular health and two found no improvement in metabolic health. The current literature indicates positive effects of dietary NO3 supplementation in older adults on physiological performance, with some evidence indicating benefits on cardiovascular and cerebrovascular health. Effects on cognitive performance were mixed and studies on metabolic health indicated no benefit. However, there has been limited research conducted on the effects of dietary NO3 supplementation in older adults, thus, further study, utilising a randomised, double-blind, control trial design, is warranted. View Full-Text
Keywords: nitric oxide; beetroot juice; older adults; cognition; cardiovascular; blood pressure nitric oxide; beetroot juice; older adults; cognition; cardiovascular; blood pressure
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Stanaway, L.; Rutherfurd-Markwick, K.; Page, R.; Ali, A. Performance and Health Benefits of Dietary Nitrate Supplementation in Older Adults: A Systematic Review. Nutrients 2017, 9, 1171.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Nutrients EISSN 2072-6643 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top