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Alfalfa is a common plant with leaves and roots that are rich in protein, iron, and many vitamins. It can be taken in pill, powder, or seed form. You can also drink it as a tea or eat it.


There are no advised doses for alfalfa.

What Research Shows

Not Enough Data to Assess

There is not enough data to support that alfalfa is helpful in treating health problems. We will review future studies as they are published.

Editorial process and description of evidence categories can be found at EBSCO NAT Editorial Process.

Safety Notes

It is likely safe to ingest alfalfa when cooked. Raw alfalfa can carry harmful bacteria. It is likely safe when small amounts are taken for a short time. Not enough studies have been done to say whether it is safe to use for a long period.


Talk to your doctor about any supplements or therapy you would like to use. Some can interfere with treatment or make conditions worse, such as:

  • People taking blood thinners, medicine to suppress the immune system, steroids, or anti-inflammatory medicine should talk to their doctors before using alfalfa.



Last reviewed March 2019 by EBSCO NAT Review Board Eric Hurwitz, DC  Last Updated: 3/2/2019