better gut function may improve nutrient absorption relevant to neurotransmitter synthesis
Effects of Ghrelin Receptor Agonist, Relamorelin, on Gastric Motor Functions and Satiation in Healthy Volunteers
[10] The injection of NAD+ may cause adverse reactions and side effects, such as headache, shortness of breath, constipation, increased plasma bilirubin, and decreased levels of gamma glutamyl transferase, lactate dehydrogenase, and aspartate aminotransferase
[DOI] [PMC free article] [PubMed] [Google Scholar] 82.Akintola A.A., van Opstal A.M., Westendorp R.G., Postmus I., van der Grond J., van Heemst D
community-derived planning often references ~250-500 mcg once or twice daily
Lu H, et al