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 has side effects similar to those experienced by users of oral or other hormonal types of contraception which include: 1  Headaches. 2  Dizziness. 3  Nausea. Breast tenderness. 4  Fatigue. Moderate weight 5  gain. Change of appetite.