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.
Descriptions. Selenium supplements are used to prevent or treat selenium deficiency. The body needs selenium for normal growth and health. Selenium is needed for certain enzymes that help with normal body functions.Although selenium is being used to prevent certain types of cancer, there is not enough information to show that this is effective.f you think that you are not getting enough vitamins and/or minerals in your diet, you may choose to take a dietary supplement. Selenium is found in seafood, liver, lean red meat, and grains grown in soil that is rich in selenium.