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.
Tell your doctor if you have serious side effects of Depo-Provera including: 1  mental/mood changes (such as new or worsening depression), 2  changes in sexual interest or ability, 3  swelling of the ankles or feet,  bone 1  pain, unusual changes in vaginal bleeding (such as continuous spotting, sudden heavy bleeding),  persistent nausea or vomiting,