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.
It could be, everyone reacts to birth control different. I was on it 3 years and personally I experienced moodiness, loss of periods, weight gain (10lbs), loss of sex drive, nausea and headaches. I would suggest taking a pregnancy test. On Depo your girlfriend will probably end up taking a few.