Ashwagandha (Withania somnifera), also known as Indian ginseng or vitaniya snodarna, is one of the most well-known and important herbs in traditional Ayurvedic medicine. In recent years, it has also come into the spotlight of modern science, which confirms its effects on reducing stress, improving sleep, hormonal balance and athletic performance.
It belongs to the so-called adaptogens - plant substances that help the body adapt to stress factors and maintain internal balance.
Effects on the psyche and sleep
Ashwagandha is most valued for its ability to help the body cope with chronic stress, thereby naturally increasing psychological resilience.
Stress activates processes in the body that increase hormone levels cortisolLong-term elevated cortisol can affect sleep quality, energy, and overall psychological well-being.
Reduction of cortisol, psychological resilience and hormonal balance
Adaptogens act on the hypothalamic-pituitary-adrenal (HPA) axis, which controls the stress response. Ashwagandha helps reduce cortisol levels – the main stress hormone. In people with chronic stress, this leads to improved mood, energy, and focus.
Scientific basis: Clinical study[1] showed that supplementation with Ashwagandha extract led to a significant decrease in cortisol levels and an improvement in stress and anxiety scores in adults.[2]
Regular use of standardized Ashwagandha extract can significantly reduce subjective perceptions of stress and cortisol levels.
Sleep support
Latin name somniferous means "sleep-inducing." By calming a stressed mind and reducing anxiety, Ashwagandha contributes to better falling asleep and better, deeper sleep.
Scientific basis: Studies[3] from 2019 showed that participants who received Ashwagandha extract experienced improved sleep quality.
Support for sports performance and regeneration
Recently, Ashwagandha has become a hit in the sports world. Although it does not act as a direct stimulant, it can help increase physical and sexual vitality. It can also be found in sports recovery supplements, as it can help with resistance to physical exertion and muscle recovery.
Taking Ashwagandha with strength training may lead to increased muscle strength and better recovery. Studies[4] from 2015 suggests that Ashwagandha may be a useful supplement for supporting athletic performance and subsequent recovery2.
Regeneration and effect on VO2 max
Other studies (such as this one)[5]) demonstrated the effect of Ashwagandha on improving cardiorespiratory endurance (VO2 max) and recovery in healthy athletes. People taking Ashwagandha extract significantly improved endurance (VO2 max), recovery and overall well-being compared to placebo.2
Ashwagandha can demonstrably improve endurance, regeneration, and coping with training stress in athletes.
Contraindications or when to be cautious?
Even though Ashwagandha is considered a safe natural supplement, there are groups of people for whom its use is inappropriate, and care must be taken to choose the right product.
Long-term use: It is recommended to take breaks and monitor the individual reaction of the body.
Taking medication: It may interact with sedatives, blood pressure, diabetes, or thyroid medications, for example. Always consult a doctor or pharmacist.
Ashwagandha should not be used by, for example, the following groups of people:
- Pregnant women: Ashwagandha should not be used during pregnancy as it can induce uterine contractions in high doses and lead to a risk of miscarriage/premature birth.
- Breastfeeding women: Use is not recommended due to a lack of clinical studies demonstrating safety for infants.
- Children and adolescents: Safety has not been adequately studied, so caution is advised.
- People with autoimmune disease: Ashwagandha can potentially boost the immune system, which could be undesirable in autoimmune diseases.
- People with thyroid disorders (hyperthyroidism and medications): Ashwagandha can stimulate the production of T3 and T4 hormones. For this reason, it is not suitable for people with an overactive thyroid (hyperthyroidism) - it could worsen symptoms. If you suffer from any thyroid disorder, have been diagnosed with autoimmunity (e.g. Hashimoto's) or are taking thyroid medication, you should consult a doctor before taking it.
As a dietary supplement, it is not a substitute for a varied diet and a healthy lifestyle. Consult your doctor before use if you are unsure.
How to choose quality Ashwagandha? Focus on these 3 elements:
1. Standardization for Withanolides (Percentage of active ingredient)
Withanolides are the main bioactive compounds in Ashwagandha, which are responsible for its adaptogenic effects (reducing cortisol, supporting the psyche).
- Choose only products that have the following on the label: standardized withanolide content.
- Ideal concentration: Look for standardized extracts at least 5% withanolidesA lower percentage extract (or unextracted powder) may not be of poor quality, but it is unlikely to have as strong an effect as has been observed in clinical studies.
Beware! Many cheap products only list the weight of the powder (e.g. 500 mg) but do not contain any guarantee of the percentage of withanolides.
2. Extract Type (KSM-66® vs. Generic)
Some extracts are patented, clinically studied and verified.
- KSM-66® Extract: It is one of the most prestigious and most studied full-spectrum extracts, always standardized to 5% withanolides. Its manufacturing process is optimized to preserve the natural ratio of all active ingredients.
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Root vs. leaf extract: Always prioritize extract only from the root (Withania somnifera root extract) because the root contains the highest concentration of adaptogenic withanolides and has a long history of traditional use.
3. Synergy with other nootropics and purity of composition
Quality supplements often combine Ashwagandha with other substances that enhance its effect (synergy).
- What to look for: Look for substances such as L-Theanine (for calming), Bacopa monnieri (for memory and concentration) or B vitamins (for the nervous system).
- Purity: Check that the product does not contain unnecessary fillers, chemical additives, gluten or lactose.
If you are looking for a comprehensive, premium and proven supplement that combines Ashwagandha with substances that support concentration and energy, we recommend the product Beggs Focus and Energy.
This premium product meets all the criteria of premium quality:
- Ashwagandha KSM-66®: Contains clinically proven root extract standardized to 5% withanolides, which ensures maximum adaptogenic effect to reduce stress.
- Synergistic composition: Combines Ashwagandha with Korean Ginseng, Bacopa monnieri, L-Theanine from green tea and B vitamins. Thanks to this, it has a comprehensive effect on mental well-being, concentration and physical vitality.
- Dosage: Taking 2 capsules provides 300 mg of KSM-66® extract and 15 mg of pure withanolides, which is an effective daily dose.
This combination is ideal for those who want not only manage stress, but at the same time to support yours concentration and overall performance during difficult days.
[1] CHANDRASEKHAR, K.; KAPOOR, Jyoti a ANISHETTY, Sridhar. A Prospective, Randomized Double-Blind, Placebo-Controlled Study of Safety and Efficacy of a High-Concentration Full-Spectrum Extract of Ashwagandha Root in Reducing Stress and Anxiety in Adults. Online. Indian Journal of Psychological Medicine. 2012, vol. 34, no. 3, s. 255-262. ISSN 0253-7176. Dostupné z: https://doi.org/10.4103/0253-7176.106022. [cit. 2025-11-07].
[2] The effects of Ashwagandha need to be further investigated and more studies conducted.
[3] SALVE J, Pate S, DEBNATH K, et al. Adaptogenic and Anxiolytic Effects of Ashwagandha Root Extract in Healthy Adults: A Double-blind, Randomized, Placebo-controlled Clinical Study. Online. Cureus. 2019, vol. 11, no. 12. DOI:10.7759/cureus.6466. Dostupné z: https://www.cureus.com/articles/25730#!/. [cit. 2025-11-07].
[4] WANKHEDE, Sachin; LANGADE, Deepak; JOSHI, Kedar; SINHA, Shymal R. a BHATTACHARYYA, Sauvik. Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial. Online. Journal of the International Society of Sports Nutrition. 2015, vol. 12, no. 1. ISSN 1550-2783. Dostupné z: https://doi.org/10.1186/s12970-015-0104-9. [cit. 2025-11-07].