by Marion Nestle
Aug 1 2024

Ashwagandha: an update

I am indebted to NutraIngredients-Europe for this collection of articles on the trendy herbal supplement, ashwagandha.

Ashwaganda is one of those supplements said to do wonders for stress and anxiety (of which we all have lots these days) and sleep (also a common problem).

The Ashwagandha plant is native to India, northern Africa, and the Middle East—but is now grown around the world. While the whole plant is cultivated, the root and leaf are used in extracts. Ashwagandha is a traditional herb long used for its adaptogenic properties to help your body adapt to stressors. Adaptogens are plants that facilitate your body’s ability to adapt to stress.

The NIH Office of Dietary Supplements says

Ashwagandha appears to be well tolerated for up to 3 months of use. However, the efficacy and safety of long-term ashwagandha use over months or years for stress, anxiety, or sleep is not known. In addition, ashwagandha may have potential adverse effects on the liver and thyroid and might not be safe for people with prostate cancer or those who are pregnant or nursing.

What is especially interesting are the contradictory views of this supplement.  Some see benefits.  Others see risks.

The purported benefits

The risks

The debate

Comment

I, as you undoubtedly have guessed, am a supplement skeptic.  If European agencies are warning against it, I vote for avoiding it, especially if you are in one of the risk categories: pregnant or breastfeeding women, people under the age of 18, and those with endocrine disorders (particularly dysthyroidism and hyperandrogenism), liver or heart problems or undergoing treatment with a central nervous system depressant action.

Supplement sellers can fight back all they like; I urge caution.