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|Source: The Physiological Society|
Protein Supplements Work For Women And Not Men, During Fasted Carbohydrate-Restricted Training
Consuming a protein supplement, specifically protein hydrolysate, during carbohydrate-restricted training was helpful for improving training intensity in women, but not in men. |
That’s according to new research presented at The Physiological Society’s Annual Conference Physiology 2021.
Most nutrition guidelines for athletes are based on research in men only. This study, by Dr Tanja Oosthuyse and her colleagues, emphasizes that this shouldn’t be the case, because nutritional research findings in men don’t always apply to women.
While the protein supplement helped training intensity in women, it did not improve training intensity and instead resulted in modest negative effect in men. It made exercise feel harder for them because their bodies were working harder to break down the supplement, as compared to when they were drinking just plain water.
The conclusion from this research is that women should ingest protein supplements during fasted carbohydrate-restricted exercise, while men should be aware that it will increase their perception of effort.
Future studies need to determine whether ingesting protein hydrolysate supplements during carbohydrate-restricted training over a longer time frame of weeks or months will be beneficial.
In this study, the researchers did not consider menstrual phase. Follow up studies are needed to determine whether the improved training intensity when ingesting a protein hydrolysate compared with placebo-water is specific to menstrual phase.
Commenting on the study, first author Tanja Oosthuyse said,
“The application of the findings from our study are purely for the specialised training tactic of overnight fasted carbohydrate-restricted exercise which is done to enhance training.
Racing nutrition, however, is very different and at the moment guidelines are standard for both men and women. We need to specify potential differences so that both men and women can train and race at the highest possible calibre.”
The Physiological Society brings together over 4,000 scientists from over 60 countries. The Society promotes physiology with the public and parliament alike. It supports physiologists by organising world-class conferences and offering grants for research and also publishes the latest developments in the field in its three leading scientific journals, The Journal of Physiology, Experimental Physiology and Physiological Reports. www.physoc.org
Source: The Physiological Society