Melatonin may also play a role in fetal and early human central nervous system development
[DOI] [PMC free article] [PubMed] [Google Scholar] 43.Holtkamp N., Malzer E., Zietsch J., Okuducu A.F., Mucha J., Mawrin C., Mautner V.F., Schildhaus H.U., von Deimling A
One research study that started to turn the tide of my thinking was an extensive analysis of more than 1000 foods and beverages in which coffee came out in the top 6 foods highest in antioxidant-rich coffee on a per serving basis (8)
152803 [online] Available at: Alber, J., Freisinger, P
Lancet 392, 15191529 (2018)
While the powder makes it convenient, you may want to get some sensitive scales to measure precise amounts