Natural Medical SolutionsFenugreek is a clover-like herb. Its seeds taste and smell like maple syrup, and they are used both as a spice and as a traditional medicine. People have used it for about 6,000 years.
Is fenugreek safe during pregnancy?
No, not in amounts larger than you would get from food.
NCCIH is direct about this. Using fenugreek in those amounts during pregnancy has been linked to a higher risk of birth defects, in both animals and people.
Using it as a spice in cooking is a different matter. The amounts are small.
For breastfeeding, little is known about taking more than food amounts. Fenugreek is often promoted to increase milk supply, so this comes up a lot. Ask your doctor or midwife before you start.
What is fenugreek?
Fenugreek grows around the Mediterranean, in southern Europe and in western Asia. The seeds are the part used.
Because of the maple flavour, it turns up as a flavouring in foods, drinks and tobacco.
As a medicine it has been used as a tonic and a laxative, and for period cramps, menopause symptoms and kidney stones. Today it is sold mainly for diabetes, for period cramps, and to increase milk supply.
What are the benefits of fenugreek?
The short version: the evidence is thin for all of the main uses.
Type 2 diabetes. Research suggests fenugreek may help lower blood sugar. But many of those studies were not high quality, so this is not settled.
Period cramps. Only a small number of studies. The evidence is low quality and the effect is uncertain.
Milk supply. A few studies, with mixed results. It is uncertain whether fenugreek increases milk supply.
Everything else. Too little evidence to draw any conclusion.
What are the side effects of fenugreek?
Fenugreek is believed to be safe for adults and children in the amounts found in food. Larger amounts are possibly safe for adults.
Possible side effects include:
- Diarrhea
- Feeling sick
- Other stomach and gut symptoms
Two things to take seriously. Large doses may drop your blood sugar to a harmful level. And fenugreek can cause allergic reactions, including serious ones, in some people.
There is not enough information to say whether it is safe for children in amounts larger than food.
Who should not take fenugreek?
Do not take fenugreek supplements if you are pregnant.
Talk to your doctor first if any of these apply:
- You are breastfeeding
- You take diabetes medicine, or anything else that lowers blood sugar
- You are giving it to a child in more than food amounts
- You have had a serious allergic reaction to a plant or seed before
- You take any prescription medicine
Common questions about fenugreek
Does fenugreek lower blood sugar?
Does fenugreek increase milk supply?
Can I take fenugreek while pregnant?
Can fenugreek cause an allergic reaction?
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Where this information comes from
Written from NCCIH (National Center for Complementary and Integrative Health), a public-domain resource from the U.S. National Institutes of Health. Information retrieved 2026-08-21.
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