Raspberry leaf (Rubus idaeus)
Tier 3 — weak evidence · Pregnancy · Uterine toning · Labour
Traditionally consumed as tea in the third trimester of pregnancy to tone the uterus and prepare for labour. One small trial found it shortened the second stage of labour by about 10 minutes and reduced forceps delivery. Evidence is thin and inconsistent. Most midwives consider it safe after 32 weeks of pregnancy. Do not use in the first trimester as uterine stimulation is theoretically risky.
Dose: 1–2 cups tea/day (~2 g dried leaf per cup) starting from 32 weeks gestation. Avoid in the first and second trimester — may stimulate the uterus. Limited but largely benign clinical evidence; discuss with midwife or obstetrician first.