L-Glutamine has shown mixed results in improving recovery
Protein Quality and Sulfur-Containing Amino Acids Glutathione synthesis requires adequate intake of its three constituent amino acids: cysteine (the rate-limiting amino acid), glutamine, and glycine
Endocrinology, 114 (5), 15371545.
It does not suppress natural GH production, produces more physiological pulsatile release, and does not carry the same risk of joint and cardiovascular effects seen with HGH
[15] [16] Scientific References The Potential Role of Arginine Supplements on Erectile Dysfunction: A Systematic Review and Meta-Analysis (Rhim et al., 2019)
van den Hoogen WJ, Laman JD, Hart T, BA, (2017) Modulation of multiple sclerosis and its animal model experimental autoimmune encephalomyelitis by food and gut microbiota