The organization and daily routine of a wagon train depended on the danger expected from the Native American tribes into whose territory it had traveled, the terrain, and the size of the caravan. Mormon trains, in particular, had a semi military formation.
Side effects. Taken at normal doses, selenium does not usually have side effects. An overdose of selenium may cause bad breath, fever, and nausea, as well as liver, kidney and heart problems and other symptoms. At high enough levels, selenium could cause death.
1 Is selenium supplement good as for antioxidant purposes in our body. Dr. Ed Friedlander Dr. Friedlander. I wouldn't advise it: Thirty years of work on antioxidants has made it pretty clear that they don't prevent disease or improve longevity, despite all the theoretical reasons that they are supposed to.