glutathione and anemia metabolism production turnover in RBC. Schematically presented are Rasburicase-Induced Hemolytic Anemia Secondary to – What is glutathione and why

Analysis, Nutrition, and Health Benefits of Tryptophan. International Journal of Tryptophan Research 11 (2018): 1178646918802282

That's better than nothing, but it's not the same as Phase 2 safety data

One study revealed that a high-sugar diet is associated with an increased risk of 45 diseases, including 18 endocrine disorders, 10 cardiovascular diseases, seven types of cancer, and 10 other conditions (depression included) (111)

It sits in the middle ground that characterizes many endogenous bioactive peptides: genuine biology, genuine effects, and genuine unanswered questions about how far those effects can be pushed therapeutically