Milk Thistle Leaf
BotanicalSilybum marianumAlso calledMilk thistle, Mary thistle, Holy thistle, St. Mary's thistle
The white-veined leaf of the milk thistle plant, brewed into a mild, bitter green tea to sip before meals.

Milk thistle is a tall, spiny Mediterranean thistle with glossy leaves marbled in milky white veins and big purple flower heads. Legend says the white streaks came from a drop of the Virgin Mary's milk. In old European kitchens the young leaves were trimmed of their spines and eaten like greens. Dried and steeped, the leaf makes a mild, bitter, slightly grassy tea.
Most of what you read about milk thistle is about its seeds, and especially silymarin, a concentrated seed extract that has been studied for the liver. Our product is the leaf, which contains far less silymarin, so seed research should not be applied to a cup of leaf tea. Milk thistle is not part of classical Ayurveda; modern Ayurvedic writers describe the plant as bitter and cooling, a friend to pitta and kapha.
Ayurvedic Properties
Not described in classical Ayurveda; modern Ayurvedic writers describe it as bitter, astringent and slightly sweet with a cooling energy and sweet vipaka, settling pitta and kapha (Satyori herb guide, describing mainly the seed).
- RasaTastes
- ViryaHeating or cooling
- Cooling
- VipakaPost-digestive effect
- Sweet
- AgniEffect on digestion
- Gently supports agni
A small bitter cup before a meal gently wakes the appetite without adding heat.
- GunaQualities
- TridoshaEffect on Vata, Pitta and Kapha
- Vata: increases in excess
- Pitta: decreases
- Kapha: decreases
- ↓decreases (calms that dosha)
- ↑increases (can aggravate it)
- =neutral or balancing
- ?not known
- V Vata · P Pitta · K Kapha
Bitter and cooling, milk thistle leaf is most at home with pitta and kapha. Vata types can enjoy it occasionally, warm and with a little fennel or ginger to soften the bitterness.
Traditional Uses
- Traditionally used to support healthy liver function in European herbal practice.
- Traditionally used to support digestion as a bitter green before meals.
- Traditionally used to support a cool, settled system when pitta runs high.
How People Use It
- TeaSteep 1 to 2 teaspoons of dried leaf in a cup of just-boiled water for 10 minutes. Sip a small cup about 20 minutes before a meal.
Bitter Leaf Before-Dinner Tea
A small, bitter-bright cup to sip while dinner cooks.
- 1 teaspoon dried milk thistle leaf
- 1/2 teaspoon fennel seeds
- A few fresh mint leaves
- 1 1/2 cups just-boiled water
- Place the milk thistle, fennel and mint in a teapot.
- Pour over the water, cover and steep for 10 minutes.
- Strain and sip a small cup slowly, about 20 minutes before eating.
- Notice the bitter taste at the back of the tongue; in Ayurveda that is part of how bitters prepare digestion.
Pairs Well With
Cautions
- Milk thistle may cause allergic reactions, particularly in people who are allergic to related plants such as ragweed, chrysanthemum, marigold and daisy.
- The most common side effects are digestive, such as bloating, nausea, gas or loose stools.
- Little is known about whether milk thistle is safe during pregnancy or while breastfeeding. Check with your doctor or midwife first.
- Milk thistle extracts may lower blood sugar. If you take diabetes medicine, talk with your doctor.
- If you take any medicine, talk with your health care provider before using milk thistle; some herbs and medicines interact.
- Our product is the leaf. Research on milk thistle for liver conditions uses concentrated seed extracts, and even those results are mixed. Leaf tea is not a substitute for medical care for any liver condition.
- Please consult a qualified practitioner or your doctor before using milk thistle regularly.
In Our Shop
Organic Milk Thistle Leaf, from $5.75. Weighed and packed by hand at our Rockville Centre studio.
Shop Milk Thistle Leaf →Sources and Further Reading
This page shares how herbs are traditionally used in Ayurveda and other herbal traditions. It is for general education only and is not medical advice. These statements have not been evaluated by the FDA, and herbs are not intended to diagnose, treat, cure or prevent any disease. Please talk with your doctor or a qualified practitioner before using herbs, especially if you are pregnant, nursing, taking medication or managing a health condition.