What does the evidence say about Phosphatidylserine Cortisol Exercise Randomized Trial?

Updated October 2026

Quick Answer

Phosphatidylserine Cortisol Exercise Randomized Trial has evidence relevant to benefits, uncertainty, and practical interpretation, but conclusions should stay close to the cited sources. One representative finding is: These reports point out that cortisol is released in response to glycogen depletion or reduced blood glucose levels to maintain the blood glucose level, delaying fatigue.

Key Takeaways

  • 01These reports point out that cortisol is released in response to glycogen depletion or reduced blood glucose levels to maintain the blood glucose level, delaying fatigue. [Tsuda Yuichi (2020)]
  • 02reported that physical conditioning is associated with a reduction in pituitary-adrenal activation in response to exercise (i.e., highly trained athletes have diminished responses of ACTH and cortisol to CRH) []. [Tsuda Yuichi (2020)]
  • 03This indicates that the increase in mitochondrial capacity by training shifts fuels to more fat burning and glycogen sparing, thus preventing reduced blood glucose levels, which can contribute to a reduction in the pituitary-adrenal response. [Tsuda Yuichi (2020)]
  • 041 2 3 6 7 8 9 10 11 12 15 16 17 Stress causes activation of the hypothalamic-pituitary-adrenal (HPA) axis [,]. [Tsuda Yuichi (2020)]
The current Migaku evidence database contains 2 reusable source documents for Phosphatidylserine Cortisol Exercise Randomized Trial. This answer focuses on benefits, uncertainty, and practical interpretation. - These reports point out that cortisol is released in response to glycogen depletion or reduced blood glucose levels to maintain the blood glucose level, delaying fatigue. [Tsuda Yuichi (2020); evidence level 2] - reported that physical conditioning is associated with a reduction in pituitary-adrenal activation in response to exercise (i.e., highly trained athletes have diminished responses of ACTH and cortisol to CRH) []. [Tsuda Yuichi (2020); evidence level 2] - This indicates that the increase in mitochondrial capacity by training shifts fuels to more fat burning and glycogen sparing, thus preventing reduced blood glucose levels, which can contribute to a reduction in the pituitary-adrenal response. [Tsuda Yuichi (2020); evidence level 2] - 1 2 3 6 7 8 9 10 11 12 15 16 17 Stress causes activation of the hypothalamic-pituitary-adrenal (HPA) axis [,]. [Tsuda Yuichi (2020); evidence level 2] - Results Mean peak cortisol concentrations and area under the curve (AUC) were lower following PS (39 +/- 1% and 35 +/- 0%, respectively) when compared to placebo (p Conclusion The findings suggest that PS is an effective supplement for combating exercise-induced stress and preventing the physiological deterioration that can accompany too much exercise. [Starks MA (2008); evidence level 4] Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording. This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.

Sources

  1. Acute supplementation with an amino acid mixture suppressed the exercise-induced cortisol response in recreationally active healthy volunteers: a randomized, double-blinded, placebo-controlled crossover study
  2. The effects of phosphatidylserine on endocrine response to moderate intensity exercise.