Too much of something could become addictive and the same goes with drinking cocoa. I remember when I was drinking lots of cocoa before, it is hard to sleep at night. It can even affects your kidney.It can cause heartburn, abnormal heart rhythm and anxiety. Over used could lead to depression, paranaoia and nightmare. Eating this one could cause the growth of pathogenic bacteria when eaten raw. With pregnant woman, this could cause premature labor , low birth rate and miscarriage. But there are lots of benefits we could get from Cocoa. First one, it has no sugar. It is a good aphrodisiac and good antioxidant. It has essential fats too that is very needed to our diet, especially woman as it gives Magnesium which we are lacking.