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 is used as a contraceptive method to prevent pregnancy and to reduce pain caused by endometriosis. Some of the more common side effects of Depo-Provera are menstrual irregularities, weight gain, abdominal pain, decreased libido, acne, headache, breast pain, and nervousness.