Wormseed tea, made from Chenopodium ambrosioides, is a traditional herbal remedy widely used in Latin American folk medicine. Known in Brazil as mentruz, mastruz, or erva-de-santa-maria, this aromatic plant has gained recognition for its effects on digestive health, respiratory support, and parasite control.
Despite its long history of use, wormseed is a powerful herb that requires caution. When used correctly and in moderation, it can be a valuable natural ally. When misused, however, it may cause adverse effects.
In this complete guide, you will learn:
- What wormseed really is
- Its main medicinal properties
- The most recognized health benefits
- How to prepare wormseed tea safely
- Who should avoid using it
- Internal and external traditional uses
⚠️ This article is for educational purposes only and does not replace professional medical advice.
What Is Wormseed (Chenopodium ambrosioides)?
Chenopodium ambrosioides, commonly called wormseed, Mexican tea, or epazote (in some regions), is a medicinal plant native to Central and South America. It thrives in tropical and subtropical climates and is often grown in home gardens due to its strong aroma and traditional medicinal uses.
The plant has narrow green leaves and a pungent, slightly bitter scent. In traditional medicine, both the leaves and stems are used, primarily as tea or topical applications.
Medicinal Properties of Wormseed
Wormseed contains several bioactive compounds, including:
- Essential oils (notably ascaridole)
- Flavonoids
- Saponins
- Alkaloids
These compounds give the plant its well-known therapeutic properties:
- Antiparasitic (vermifuge)
- Expectorant
- Anti-inflammatory
- Antiseptic
- Digestive stimulant
- Mild antioxidant activity
⚠️ Ascaridole is effective but potentially toxic in high doses, which is why moderation is essential.
Health Benefits of Wormseed Tea
1. Helps Eliminate Intestinal Parasites
Wormseed is traditionally used as a natural deworming agent. Its essential oil has been used to help combat intestinal parasites such as roundworms and pinworms in folk medicine.
2. Supports Respiratory Health
Wormseed tea is commonly used to relieve symptoms of:
- colds
- flu
- bronchitis
- sinus congestion
Its expectorant action helps loosen mucus and improve breathing comfort.
3. Anti-Inflammatory and Healing Action
When used externally, wormseed may help soothe:
- insect bites
- minor wounds
- localized inflammation
It has traditionally been applied as a poultice to support skin healing.
4. Improves Digestion
Wormseed stimulates digestive secretions, helping relieve:
- gas
- bloating
- indigestion
- sluggish digestion
This makes it a traditional remedy after heavy meals.
5. Immune System Support
The plant’s natural antioxidants may help support immune defenses, especially during periods of respiratory stress.
How to Prepare Wormseed Tea Safely
Wormseed tea should be prepared carefully and consumed for short periods only.
Ingredients
- 1 tablespoon fresh or dried wormseed leaves
- 1 cup (200 ml) filtered water
Preparation (Infusion)
- Bring the water to a boil.
- Turn off the heat.
- Add the leaves.
- Cover and steep for 10 minutes.
- Strain and drink warm.
Recommended use
- Up to 2 cups per day
- No longer than 7 consecutive days
For safe infusion techniques and correct water temperature, see:
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Traditional External Uses of Wormseed
In folk medicine, crushed fresh leaves mixed with a small amount of water are applied externally for:
- insect bites
- itching
- mild skin inflammation
- small wounds
⚠️ Always perform a skin patch test before topical use.
Who Should Avoid Wormseed?
Despite its benefits, wormseed is not safe for everyone.
Avoid use if you are:
- pregnant or breastfeeding
- giving it to young children
- diagnosed with liver or kidney disease
- sensitive to strong essential oils
Always consult a healthcare professional before using wormseed internally.
Possible Side Effects
Excessive or prolonged use may cause:
- nausea
- vomiting
- diarrhea
- stomach irritation
- liver toxicity (in high doses)
This is why wormseed should never be used continuously or in large quantities.
Does Wormseed Really Work?
Yes — traditional use and scientific studies support its antiparasitic and expectorant effects. However, effectiveness depends entirely on proper dosage, short-term use, and individual tolerance.
Used responsibly, it can be beneficial. Misuse may lead to serious side effects.
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Related Herbal Teas You May Like
If you’re interested in medicinal plants that support digestion and respiratory health, explore:
- Boldo Tea: Benefits and How to Prepare
- Mint Tea: Refreshing Digestive Support
- Brazilian Lemon Balm Tea (Lippia alba)
Prepare your tea the right way
If you plan to use this plant to make tea, use the Nutritive Blog tea infusion timer. Proper infusion time helps preserve active compounds and ensures better results.
Author Box
Written by Alexandre Zorek, graduate in Business Administration and postgraduate in Botany.
A passionate lover of orchids, photography, and natural food — and father of Bianca and Beatriz — he shares reliable knowledge about plants, fruits, teas, and vegetables in a practical and accessible way.
Conclusion
Wormseed is a powerful traditional herb with a long history in natural medicine. Its ability to support parasite control, respiratory health, and digestion makes it a valuable complementary remedy, but one that must be used with respect and caution.
Moderation, correct preparation, and awareness of contraindications are essential to enjoy its benefits safely.
