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 with Depo-Provera are changes in menstrual periods, weight gain, abdominal pain, decreased libido, acne, headache, nervousness, back pain, and depression. This is not a complete list of the side effects associated with Depo-Provera.