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Is Herbal supplements (general) safe in pregnancy?
Best avoided
Most herbal supplements should be avoided — evidence is too thin.
What the evidence says
The majority of herbal supplements have not been adequately tested for pregnancy safety. This includes echinacea, St. John’s Wort, valerian, ginkgo, ginseng, and many others. Some (like St. John’s Wort) have known interactions and risks; many are simply unknown. The safe default is to avoid during pregnancy unless specifically discussed with your GP or midwife.
Why this matters
Herbal products can contain active pharmacological compounds that cross the placenta. Without pregnancy-specific safety data, avoidance is the safest approach.
Source:NHS guidance on medicines and supplements in pregnancy
Last reviewed:April 2026
Please note — This is general guidance based on NHS advice as of April 2026. It is not medical advice. For advice on your specific pregnancy, please speak to your midwife or GP.
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