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Can Ashwagandha Help Anxiety?

Ashwagandha, an adaptogenic herb, may help reduce anxiety by lowering cortisol levels and promoting calmness.

Ashwagandha, also known as Indian ginseng, is a popular herb in Ayurvedic medicine. It is believed to help the body manage stress and anxiety. This article explores how ashwagandha can help with anxiety, its benefits, side effects, and recommended dosages.

Benefits for Anxiety

Ashwagandha is known for its potential to reduce anxiety and stress. Studies suggest that it can lower cortisol levels, a hormone associated with stress. Lower cortisol levels can lead to reduced anxiety and improved mood.

  • Stress Reduction: Ashwagandha helps reduce stress by regulating the hypothalamus-pituitary-adrenal (HPA) axis. This system controls the body’s response to stress.
  • Improved Sleep: By reducing stress, ashwagandha can improve sleep quality. Better sleep can further reduce anxiety.
  • Mood Enhancement: Ashwagandha’s calming effects can help alleviate symptoms of anxiety and depression.

A study involving 60 adults found that those who took ashwagandha reported lower anxiety levels and better sleep quality compared to those who took a placebo.

Dosage and Forms

The dosage of ashwagandha varies depending on the form and the individual’s needs. Common forms include capsules, powders, and gummies.

  • Capsules: Typically contain 300-600 mg of ashwagandha extract. Recommended dosage is 300 mg twice daily.
  • Powders: Can be mixed with water, milk, or honey. Dosage ranges from 250-500 mg per day.
  • Gummies: A convenient option for those who dislike pills. Dosage varies by brand.

Most studies recommend taking 300-600 mg of ashwagandha extract daily for 8 weeks to see significant benefits.

Side Effects and Precautions

While ashwagandha is generally safe for most people, it can cause side effects in some cases. Common side effects include:

  • Gastrointestinal Issues: Diarrhea, nausea, and stomach upset.
  • Headaches: Some users report mild headaches.
  • Sedation: Ashwagandha can cause drowsiness in some individuals.

Certain groups should avoid ashwagandha:

  • Pregnant Women: Ashwagandha may induce abortion at high doses.
  • Autoimmune Conditions: It can stimulate the immune system, worsening conditions like lupus or rheumatoid arthritis.
  • Thyroid Disorders: Ashwagandha may increase thyroid hormone levels, requiring careful monitoring.

Mechanism of Action

Ashwagandha’s effects on anxiety are linked to its ability to regulate the HPA axis and lower cortisol levels. It also has antioxidant properties that protect the brain from oxidative stress.

  • HPA Axis Regulation: Helps balance the body’s stress response.
  • Cortisol Reduction: Lowers stress hormone levels, reducing anxiety.
  • Antioxidant Effects: Protects brain cells from damage, improving overall mental health.

Clinical Evidence

Several studies support the use of ashwagandha for anxiety. A randomized, double-blind, placebo-controlled study found that participants taking ashwagandha had significantly lower anxiety levels compared to the placebo group. Another study showed that ashwagandha improved sleep quality and reduced stress in adults with insomnia.

Summary of Clinical Findings

Study Type Participants Dosage Duration Results
Randomized, Double-Blind 60 adults 300 mg twice daily 8 weeks Reduced anxiety, improved sleep
Placebo-Controlled 130 adults 225-400 mg daily 30 days Lowered cortisol, reduced stress
Systematic Review 491 adults 240-1,250 mg daily 6-8 weeks Reduced stress, improved sleep


Ashwagandha shows promise in reducing anxiety and improving overall mental well-being. Its ability to lower cortisol levels and regulate the HPA axis makes it a valuable tool for managing stress and anxiety. However, it is essential to consult with a healthcare professional before starting any new supplement, especially if you have underlying health conditions or are taking other medications.