688mg polyphenol supplementation for at least 7 days increases sport performance

Objectives:
Does polyphenol supplementation increase sport performance?

Study design:
This review article included 14 studies. Of these, the studied populations were predominately-trained males with an average intervention dose of 688 ± 478mg polyphenols per day.

Results and conclusions:
The investigators found pooled results demonstrated polyphenol supplementation for at least 7 days significantly increased performance by 1.90% [95% CI = 0.40-3.39].

The investigators found sub-analysis of 7 studies using quercetin significantly increased performance by 2.82% [95% CI = 2.05-3.58].

The investigators found no adverse effects reporting in studies in relation to the intervention.

The investigators concluded daily 688mg polyphenol supplementation, preferably quercetin supplementation for at least 7 days increases performance in healthy individuals.

Original title:
Polyphenols and Performance: A Systematic Review and Meta-Analysis by Somerville V, Bringans C and Braakhuis A.

Link:
https://www.ncbi.nlm.nih.gov/pubmed/28097488

Additional information of El Mondo:
Find here more information/studies about sport nutrition and flavonoids.