This lack of detail can be generalised to all the publications to date on areca nut use in pregnancy. Further research on areca nut use would benefit from the inclusion of the type of areca nut(ripe or unripe), estimated number of nuts per day, contents
of the quid including tobacco and use of the P. betel leaf recently reported to have cancer preventive effects, and whether the woman chews, spits or swallows.