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No cardiovascular signals
"Vitamin B12 (Cyanocobalamin)"
Also studied for inflammation modulation, angiogenesis, and neural tissue protection
This does not make it the most effective, which remains debated, but it does make it among the best characterized for safety
1981, in Effect of tryptophan administration on tryptophan, 5-hydroxyindoleacetic acid, and indoleacetic acid in human lumbar and cisternal cerebrospinal fluid. Supplementing with tryptophan helps support serotonin synthesis, especially when dietary intake is insufficient
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