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22 Oct 2024

Ashwagandha: miracle adaptogen for stress, sleep, and performance – or just hype?

Adrian Penzhorn | Dietitian & Sport Scientist

Ashwagandha has gained widespread attention for its stress-relieving and performance-enhancing qualities. This ancient Ayurvedic herb is often hailed as a solution for anxiety, poor sleep, and even physical performance, largely because of its ability to lower cortisol levels. But does the science fully support these claims? Let’s explore the evidence behind the hype while also addressing important safety concerns.

Stress and cortisol: the major attraction

Ashwagandha is best known for its ability to lower cortisol, the body’s primary stress hormone. By acting on the hypothalamic-pituitary-adrenal (HPA) axis, it’s believed to help the body manage chronic stress—something often linked to sleep problems, weight gain, and burnout.

What the research says:
Studies support this claim, showing that Ashwagandha can reduce cortisol levels in individuals with high stress. This cortisol reduction has been linked to improvements in anxiety and overall wellbeing. However, it’s important to note that these effects are more pronounced in individuals with higher baseline stress levels. If you’re less stressed, the effects may be more subtle or even negligible.

Takeaway:
If you're juggling multiple deadlines or feel constantly overwhelmed, Ashwagandha might offer some relief. But for those with minimal stress, the impact may not be as dramatic.

Cognitive and physical boost: fact or fiction?

Ashwagandha is often promoted for improving both cognitive function and physical performance. From enhancing memory and focus to aiding muscle recovery, its potential has attracted office workers and athletes alike.

What the research says:
Some studies support these claims, particularly in populations experiencing fatigue or cognitive decline. For example, trials have shown improved reaction times and memory retention, as well as enhanced muscle strength and recovery in athletes. However, other research suggests these benefits are modest at best, especially in healthy, unstressed individuals.

Takeaway:
If you’re looking to sharpen your mental focus or boost athletic performance, Ashwagandha might help, but don’t expect a drastic change unless you’re starting from a place of mental fatigue or physical strain.

The sleep connection: how strong is it?

One of the most frequently touted benefits of Ashwagandha is improved sleep quality and duration. Many professionals dealing with insomnia or erratic sleep patterns have turned to this adaptogen as a natural remedy.

What the research says:
Ashwagandha’s ability to improve sleep has been shown in people who experience stress-related sleep disorders. Its sedative compounds, such as triethylene glycol, may enhance sleep quality. However, for individuals with sleep problems not directly linked to stress, Ashwagandha’s benefits may not be as effective.

Takeaway:
If your sleep issues are due to high stress, Ashwagandha could help you rest easier. But if your sleep struggles come from other causes, such as medical conditions, you might want to look elsewhere for solutions.

Safety concerns: what you need to know

While Ashwagandha is generally considered safe for most people, there are some important safety concerns to keep in mind.

  1. Thyroid irregularities:
    Some individuals have reported changes in thyroid hormone levels (T3 and T4) after taking Ashwagandha, particularly those with pre-existing thyroid conditions. If you have a thyroid disorder, consult a healthcare professional before use.

  2. Liver damage:
    Although rare, there have been case reports of liver damage associated with Ashwagandha use. Symptoms such as jaundice, fatigue, and abdominal pain have been observed, leading to temporary liver dysfunction. While this is uncommon, individuals with a history of liver disease or those taking medications that affect liver function should exercise caution.

Who should be cautious?

  • Individuals with thyroid or liver conditions should consult their healthcare provider before starting Ashwagandha.

  • Pregnant or breastfeeding women should avoid it, as its safety in these populations is not well-established.

Is Ashwagandha for you?

Ashwagandha’s benefits can vary widely from person to person, depending on factors like your stress levels, baseline health, and how well it’s integrated into a broader lifestyle. While the herb may help with stress management, sleep, and even cognitive performance, it’s not a cure-all. The key to maximizing its benefits lies in combining it with a well-rounded approach to health—including proper nutrition, exercise, and sleep hygiene.

Take a moment to consider:

  • Are your sleep problems stress-related, or might they stem from other issues?

  • Do you often feel overwhelmed by stress, or is your daily routine relatively low in stress?

Your answers can help you determine whether Ashwagandha could be beneficial in your wellness routine.

Final verdict: promising, but no cure-all

So, is Ashwagandha the miracle solution it’s often made out to be? The truth lies somewhere in between. For stressed individuals, it shows real promise in reducing anxiety, improving sleep, and boosting performance. However, its effectiveness can depend heavily on individual circumstances, and it’s no substitute for a healthy lifestyle. If you’re considering adding Ashwagandha to your wellness routine, make sure it’s part of a comprehensive plan that addresses all aspects of your health. Be mindful of potential thyroid and liver-related risks, and consult a healthcare provider if you have pre-existing conditions.

Adrian Penzhorn | Dietitian & Sport Scientist

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