Ashwagandha: Benefits, Anxiety Relief, and How to Take It
In a double-blind clinical trial, 600 mg of ashwagandha daily for 60 days reduced perceived stress scores by 44% and dropped serum cortisol levels by 27.9% compared to minimal change in the placebo group.
The same study found a 75.6% reduction in anxiety scores in the ashwagandha group, versus a slight increase in placebo.
A systematic review of 5 clinical trials confirmed ashwagandha has a significant positive effect on sleep quality, with stronger results at 600 mg/day taken for at least 8 weeks.
Ashwagandha has been used in Ayurvedic medicine for thousands of years, but it's only recently found its way into mainstream wellness culture.
And for good reason because there's actually solid research behind it.
Botanically known as Withania somnifera, ashwagandha is an adaptogen.
That's a fancy word for a plant that helps your body adapt to stress, essentially helping to bring things back into balance when life gets overwhelming.
What Are the Benefits?
Here's what the research consistently supports:
Reduces stress and anxiety — multiple clinical studies have shown that ashwagandha significantly lowers cortisol levels. In one trial, participants saw a 27.9% drop in serum cortisol after 60 days at 600 mg/day.
Improves sleep quality — ashwagandha has been shown to help people fall asleep faster and feel more rested. It contains a compound called triethylene glycol, which appears to promote sleep.
Boosts energy and reduces fatigue — it's not a stimulant, but ashwagandha builds resilience to physical and mental exhaustion over time.
Supports testosterone and male reproductive health — studies show it can raise testosterone levels and improve sperm quality in men.
May enhance strength and exercise recovery — some research shows modest improvements in muscle strength and recovery when combined with resistance training.
Ashwagandha for Anxiety: Does It Actually Help?
This is where the evidence is pretty strong.
Several well-designed studies have found that ashwagandha can meaningfully reduce symptoms of anxiety, not just mild everyday stress, but clinically measured anxiety levels.
In one study, participants taking 600 mg of ashwagandha extract daily for 8 weeks reported significantly lower anxiety and stress scores compared to the placebo group.
Their cortisol levels also dropped by around 27%.
It doesn't work like a sedative or anti-anxiety medication; it won't knock you out or numb you.
Instead, it gently dials down the body's stress response over time, making you feel more grounded and less reactive to everyday pressure
What Does It Feel Like to Take It?
Most people describe a gradual sense of calm that builds over a few weeks, such as less mental noise, better ability to handle stressful situations, and often noticeably better sleep.
It's subtle at first, which is why many people underestimate it.
Some people also report improved mood and a mild energy boost; not the jittery kind you get from caffeine, but a steadier, more sustained kind of energy.
Dosage and Timing
The most well-researched dose is 300–600 mg of a standardised root extract per day.
Look for products standardised to contain at least 5% withanolides as these are the active compounds.
Timing-wise:
For anxiety and stress: you can take it in the morning or split the dose between morning and evening.
For sleep: taking it 30–60 minutes before bed tends to work well.
With or without food: either is fine, though some people find it gentler on the stomach with food.
It's not a supplement you'll feel on day one. Give it 4–8 weeks of consistent use before judging whether it's working.
Side Effects to Know About
Ashwagandha is generally well-tolerated, but side effects can include:
Mild digestive upset, especially on an empty stomach
Drowsiness at higher doses
Headaches (usually temporary as the body adjusts)
Who should be cautious:
Pregnant women: ashwagandha may stimulate uterine contractions and should be avoided.
People with autoimmune conditions like lupus, rheumatoid arthritis, or Hashimoto's: it may stimulate immune activity, which could be counterproductive.
People on thyroid medication: ashwagandha can increase thyroid hormone levels, so medical supervision is advised.
Anyone on sedatives or anti-anxiety medications: speak to a doctor first as effects may compound.
FAQs
1. How long does it take to work?
Most people notice meaningful changes in stress and sleep within 4–8 weeks of daily use. Some feel subtle changes sooner.
2. Can I take ashwagandha every day?
Yes, it's generally safe for daily use. Some people take it continuously, while others cycle it (e.g., 8 weeks on, 2 weeks off). There's no strong evidence requiring a break, but it's a reasonable approach.
3. Is ashwagandha safe to take with antidepressants?
There's limited research on this specific combination. If you're on antidepressants or any psychiatric medication, always check with your doctor before adding ashwagandha.
References
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