Raspberry leaf tea can be consumed during pregnancy but requires caution. Traditionally used to prepare uterus for labor — avoid in first trimester. The key guidance from WHO: Avoid in first and second trimester; some midwives allow after 32 weeks only. Potential concerns include: May stimulate uterine contractions, Preterm labor risk. These risks are manageable when you follow the recommended limits.
A "Use Caution" rating means this food is generally fine during pregnancy but comes with a specific factor worth managing — a daily limit, a preparation requirement, or a moderation guideline — rather than a reason to avoid it outright. These ratings reflect general guidance from the FDA, ACOG, CDC, and USDA. The goal of the "caution" label is to flag what to pay attention to, not to suggest the food is unsafe when that factor is properly managed.