Increased blood pH but not performance with sodium bicarbonate supplementation in elite rugby union players. – Cost Effective Supplements

Increased blood pH but not performance with sodium bicarbonate supplementation in elite rugby union players.

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Link to full study

http://www.ncbi.nlm.nih.gov/pubmed/20739719

Conclusion of this study

NaHCO₃ supplementation increased blood HCO₃⁻ concentration and attenuated the decline in blood pH compared with placebo during high-intensity exercise in well-trained rugby players but did not significantly improve exercise performance. The higher incidence and greater severity of GI symptoms after ingestion of NaHCO₃ may negatively affect physical performance, and the authors strongly recommend testing this supplement during training before use in competitive situations.