Eto et al. tested the effects of ARG-glutamate salt (AGs) ingestion on exercise-induced hormonal changes in highly trained cyclists, aged 18 to 22 years. There was no effect on resting plasma GH, insulin, or cortisol levels. However, ingestion of AGs dramatically diminished the elevation of cortisol and hGH during and after exercise. The results, related to the AGs and exercise-induced hormonal changes, led the authors to state the possibility that AGs supplementation may alter energy metabolism during exercise.19 Additional studies related to hormones and ARG supplementation are reviewed with AA blends and GH release in Section 188.8.131.52.
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