What is the best oil to be used when performing peritoneal massage (to ease delivery)? kitchen olive oil or a water lubricant or?

Olive,almond,coconut: Congratulations! research confirms perineal massage reduces your chances of tearing/need for episiotomy and may reduce discomfort. No research compares oils but since some will be absorbed into your skin use an oil that is healthy to eat- i advise either olive, almond or coconut oil. See http://www.Midwife.Org/acnm/files/cclibraryfiles/filename/000000000656/perineal%20massage%20in%20pregnancy.Pdf.