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.
Depo-Provera CI can cause serious side effects, including: 1  Use of Depo-Provera CI may cause you to lose calcium stored in your bone and decrease your bone mass. The longer you use Depo-Provera CI, the greater your loss of calcium from your bones.