Effects of Phosphatidylserine on Exercise Stress
Author Information
Author(s): Michael A Starks, Stacy L Starks, Michael Kingsley, Martin Purpura, Ralf Jäger
Primary Institution: The University of Mississippi
Hypothesis
Does short-term supplementation with phosphatidylserine (600 mg per day) influence cortisol and other hormone levels during moderate intensity exercise in healthy males?
Conclusion
Phosphatidylserine supplementation effectively reduces cortisol levels and increases the testosterone to cortisol ratio during exercise-induced stress.
Supporting Evidence
- Phosphatidylserine reduced cortisol levels by 39% compared to placebo.
- The testosterone to cortisol ratio increased by 184% with phosphatidylserine supplementation.
- No significant changes were observed in lactate or growth hormone levels.
Takeaway
Taking phosphatidylserine can help your body handle stress from exercise better by lowering a hormone called cortisol and keeping testosterone levels balanced.
Methodology
10 healthy males ingested either 600 mg of phosphatidylserine or a placebo for 10 days, followed by exercise testing and blood sample analysis.
Limitations
The study only included healthy males, which may limit the generalizability of the findings to other populations.
Participant Demographics
Healthy males, average age 26.2 years.
Statistical Information
P-Value
0.03
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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