The ancient Maya processed their corn by boiling it with snail shells or with white lime. The process, known today as nixtamalization, made the corn's niacin available.
Depo-Provera can cause irregular bleeding and other side effects. Irregular bleeding The most common side effect of the birth control shot is irregular bleeding.
For the Consumer. In addition to its needed effects, some unwanted effects may be caused by medroxyprogesterone (the active ingredient contained in Depo-Provera). In the event that any of these side effects do occur, they may require medical attention.