Here's some specific info about "Vit. I" ; What would we call it if vitamins had been named after the scientist who in the early 20th century modestly decided to name his new discoveries "vital-amines"? I think if Casimer Funk had made his discovery somewhat later, we'd all be taking our "Funkies" in the morning.... Al Funky Junky
http://www.druginfonet.com/ibu.htm