Mugwort: Best Avoided During Pregnancy

Mugwort is a classic in roast goose stuffing and herbal tea blends – which is exactly why the question comes up the moment a pregnancy test turns positive. The honest answer upfront: we clearly advise against mugwort as a tea, tincture, capsule, or extract during pregnancy and breastfeeding. That’s not a rumor – it comes down to thujone, a plant compound thought to stimulate the uterus. Here’s what’s actually behind that, where the line sits between everyday seasoning and risky use, and what to do instead during this stage of life.

What Is Mugwort?

Mugwort (botanically Artemisia vulgaris) is a native wild perennial from the daisy family that grows along roadsides, on fallow land, and at the edges of gardens. It’s been a kitchen staple for centuries: hardly a classic recipe for roast goose, duck, or fatty roast pork skips it, because its bitter and aromatic compounds make rich meat easier to digest. The young leaves and buds are typically harvested just before flowering, when the flavor is at its most intense.

Its second, less well-known reputation dates back to antiquity and the Middle Ages: known as the “mother of herbs,” mugwort was regarded for centuries as the herb for women’s health, used for menstrual complaints, menopause, and around childbirth. That long tradition is exactly why this everyday kitchen herb calls for caution during pregnancy today – more on that in the next section.

One important distinction: mugwort is not the same plant as sweet wormwood (Artemisia annua), which is known for its compound artemisinin and is a completely separate topic with its own tradition and uses. The two are easy to lump together since they’re close botanical relatives from the same Artemisia genus, but they are distinct species with different origins and compositions. This article covers common mugwort only – the native kitchen herb – not sweet wormwood.

How Does Mugwort Work?

For cooking purposes, it’s mainly the bitter compounds that matter: they stimulate gastric juices and bile flow, which is why mugwort has long been the classic companion to rich, fatty dishes. That’s the unproblematic part.

The second part sits in the plant’s essential oil, which contains thujone among other compounds. Thujone acts on a brain receptor called GABA-A that normally has a calming effect – thujone blocks it, which in higher amounts can make the nervous system more agitated than calm, up to and including seizures. That same compound is also why mugwort has traditionally been classed as an emmenagogue herb: plants believed to stimulate the uterus into contracting and to trigger or intensify menstruation. For centuries, mugwort was used deliberately for exactly that – to bring on a delayed period or to support labor in an overdue birth.

For an existing, wanted pregnancy, that exact property is the problem: what’s meant to support labor at full term can trigger unwanted contractions earlier in pregnancy. Germany’s Commission E, an expert panel under the former Federal Health Office, issued a negative monograph for mugwort herb as early as 1988: the effectiveness for its marketed uses wasn’t adequately proven, and its possible abortifacient effect was one of the reasons no therapeutic use is recommended – regardless of pregnancy status.

Who Is This For?

This article is for you if you’re pregnant or breastfeeding and remember mugwort tea from before pregnancy – for digestive troubles or period cramps – and want to know if that’s still okay now. It’s just as much for you if roast goose with mugwort stuffing is on your table this year and you’re unsure whether a normal serving is a risk.

And it’s for (expecting) partners, grandparents, or friends who, out foraging wild herbs or standing in the health food store, find themselves wondering what’s still okay for the pregnant person in their life – and would rather read one article too many than rely on a forum post.

Last but not least, it’s for you if you’ve just found out you’re pregnant and are wondering whether the mugwort routine you were using to regulate your cycle while trying to conceive needs to stop right away. Short answer: yes – and the dosage section below explains why that’s not a cause for concern, just the next logical step.

Dosage & Intake

Outside of pregnancy and breastfeeding, mugwort is mostly used as a seasoning – fresh or dried, one to two teaspoons per dish – or as a tea, one teaspoon of dried herb per cup, steeped briefly. Capsules, tinctures, and the essential oil are considerably more concentrated, and given their higher thujone content, they belong in experienced hands rather than in self-medication.

For pregnancy and breastfeeding, there’s no officially established safe dose – simply because the data doesn’t exist, and Commission E advises against any therapeutic use regardless. That applies equally to tea, tincture, capsules, and essential oil. A normal seasoning amount in a fully cooked dish, of the kind that traditionally ends up in goose stuffing, is a different thing from a deliberate course of tea or tincture – but the cleanest answer for this stage of life is still clear: if you’re thinking about taking mugwort deliberately as a tea, capsule, or drops, don’t. Talk through any use of mugwort during pregnancy or breastfeeding with your OB-GYN or midwife beforehand, rather than deciding on your own.

What to Look for When Buying

Since this stage of life is about avoiding mugwort rather than dosing it, it’s worth looking at labels differently than usual: mugwort likes to hide in herbal tea blends, digestive bitters, and wild herb salt mixes, often without appearing prominently on the front of the pack. So check the ingredient list even on seemingly harmless “tummy-soothing teas.” Tinctures and bitter drops are also almost always alcohol-based, and during pregnancy the rule for alcohol is simple: no amount is considered safe, not even a few drops of herbal tincture.

Once pregnancy and breastfeeding are behind you, the usual criteria for kitchen herbs apply again: controlled cultivation free of pesticide residue, harvesting just before flowering for full flavor, and for dried herb, tightly sealed, light-protected packaging so the essential oils don’t evaporate prematurely. For the essential oil specifically, keep in mind it’s many times more concentrated than the herb itself and shouldn’t be used undiluted or dosed without guidance.

An Honest Look at the Evidence

What’s well established: mugwort contains thujone, which is proven to act on the brain’s GABA system and can trigger seizures at higher amounts. Commission E recommended against therapeutic use as early as 1988, partly because of its possible abortifacient effect. And in its assessment of thujone-containing herbal preparations, the European Medicines Agency reaches a clear conclusion: for sensitive groups like pregnant women, adequate studies simply don’t exist, which is why use during this time should be minimized.

What’s not established: any specific study showing that a normal seasoning amount of mugwort in a single dish harms the baby. That data simply doesn’t exist, in either direction. And that’s exactly the point: where data is missing, pregnancy calls for the cautious option – which here means skipping deliberate use as a tea, capsule, or drops, without needing to worry over a portion of goose stuffing you’ve already eaten.

Suitable Scheunengut Products

We’re deliberately not listing a product here. Common mugwort, the plant this article covers, isn’t part of our current range anyway – our Artemisia product is based on the botanically different plant Artemisia annua, so it isn’t relevant to this topic. And even if we did carry a suitable mugwort preparation, we wouldn’t recommend it to you here, for the same safety reasons.

Once you’re no longer pregnant or have finished breastfeeding, mugwort is available as a normal kitchen herb again, and the quality criteria above apply. Until then: for questions about your individual situation, your midwife or OB-GYN is the right person to ask.

Frequently Asked Questions (FAQ)

Can I eat or drink mugwort during pregnancy?

We clearly advise against deliberately taking it as a tea, capsule, tincture, or essential oil. The reason is thujone, a compound believed to bring on labor, combined with a lack of safety data for pregnancy.

Is mugwort allowed while breastfeeding?

Deliberate use is discouraged during breastfeeding too. It hasn’t been sufficiently studied how much of mugwort’s active compounds pass into breast milk, so the same caution applies as during pregnancy.

I ate roast goose with mugwort before I got pregnant – is that a problem?

No, that’s not a reason to worry. A normal seasoning amount in a fully cooked dish is a different thing from a deliberate course of tea or tincture. If you’re unsure, mention it briefly at your next prenatal appointment anyway.

Why is mugwort viewed so critically during pregnancy when it’s a normal kitchen herb?

Because the same property that traditionally made mugwort a labor- and menstruation-inducing herb becomes a risk during an existing pregnancy. A kitchen herb used in moderation and a deliberate application as tea or extract are two different questions with two different answers.

Is mugwort tea safer than capsules, tincture, or essential oil?

No, the caution applies equally to every form. Tinctures and bitter drops also almost always contain alcohol, and there’s no safe amount of alcohol during pregnancy anyway.

Is mugwort the same as Artemisia annua (sweet wormwood)?

No. The common mugwort (Artemisia vulgaris) covered in this article is a different plant from sweet wormwood (Artemisia annua), which is known primarily for the compound artemisinin. The two are close botanical relatives, but they don’t share the same origin, compounds, or history of use.

When can I use mugwort again after giving birth or after weaning?

There’s no blanket number of weeks for this. Once you’re no longer pregnant or breastfeeding, the normal uses as a kitchen herb apply again – if you’re unsure about timing, just check with your midwife or doctor.