As with many natural interventions there’s a bit of controversy on whether or not red raspberry leaf tea has any impact on labor. Some studies show it can shorten labor and lessen the need for interventions. In fact, a study published in the Journal of Nurse Midwifery found some 63% of certified nurse midwives used red raspberry leaf as part of their natural labor induction plan.
Other studies show that at the highest levels it can actually inhibit contractions, lengthening labors. It’s important to point out for this study the doses “at the highest level” are at a level no human would consume with a mug of tea a day. At worst you have a tasty tea that has no effect. Also note that rats are not humans and their physiology will handle things slightly differently.
Conventional and folk wisdom treat it as a “women’s herb”. It’s great to help menstrual cramps, keep the uterus healthy and may help with fertility. The only caution I regularly see with red raspberry leaf is to not consume it in the first trimester.