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.
_The most common side-effects of depo-Provera are an increase in weight (usually less than 5 pounds), and a slight feeling of tiredness. These effects are temporary. Infrequent side-effects include headaches, upset stomach, leg cramps and blood clots; these are rare and can be detected and treated by a physician.