RecruitingDietary supplementThe Effects of an Acute Dose of a Betalain-rich Concentrate on Repeated-sprint Cycling Performance and Recovery.Betalains have well-known antioxidant and anti-inflammatory properties. Recent investigations examining the effects of a betalain-rich concentrate (BRC) on exercise and recovery performance show promise of BRC as an ergogenic aid. To date, no study has examined the effects of a single dose of a BRC on supramaximal performance and recovery. Therefore, the purpose of this study is to examine the effects of an acute dose of BRC on repeated-sprint cycling performance and recovery.