Ashwagandha vs. Other Adaptogens: Maca Root, Rhodiola, and Reishi – Your Personalized Guide

In the ever-expanding world of natural health, adaptogens have emerged as powerful allies for managing stress, boosting energy, and enhancing overall well-being[1]. These unique botanicals help the body "adapt" to various stressors, promoting balance and resilience. While Ashwagandha often takes center stage, it's just one star in a constellation of incredible adaptogenic herbs and fungi.

But with so many options available, how do you choose the right adaptogen for your specific needs? Is Ashwagandha the best choice for stress, or might Maca Root be better for energy? What about Rhodiola for focus, or Reishi for immunity? This comprehensive guide will delve into the distinct properties of Ashwagandha, Maca Root, Rhodiola Rosea, and Reishi Mushroom, offering a personalized roadmap to help you select the ideal adaptogen for your health goals[1].

What Are Adaptogens and How Do They Work?

Adaptogens are a class of non-toxic plants, and sometimes fungi, that help the body resist various stressors—physical, chemical, or biological—by normalizing physiological functions. They are unique in their ability to exert a non-specific beneficial effect, meaning they don't target a single organ or system but rather support the body's overall ability to maintain homeostasis.

The Core Function of Adaptogens

The primary mechanism of action for adaptogens involves modulating the hypothalamic-pituitary-adrenal (HPA) axis, which is the body's central stress response system. By influencing hormones like cortisol and neurotransmitters, adaptogens help to balance the body's response to stress, preventing both over- and under-reaction[1]. This regulation helps to prevent the "burnout" often associated with chronic stress[1].

Beyond the HPA axis, many adaptogens also interact with the immune system, support cellular energy production, and possess antioxidant properties[12]. They work to restore balance, whether that means calming an overactive system or stimulating an underactive one, always aiming for optimal function.

Key Benefits of Adaptogens

The widespread appeal of adaptogens stems from their diverse range of benefits. These can include enhanced stress resilience, improved mood, increased physical and mental endurance, better sleep quality, and a strengthened immune system[1]. They are often sought after by those looking for natural ways to support their body's ability to cope with the demands of modern life.

Ashwagandha: The "Indian Ginseng"

Ashwagandha (Withania somnifera) is one of the most revered herbs in Ayurvedic medicine, India's traditional system of healing. Often called "Indian Ginseng" due to its rejuvenating properties, it has been used for thousands of years to promote vitality, reduce stress, and improve overall health[1]. Its name, "Ashwagandha," literally means "smell of a horse," referring to its unique aroma and the belief that it imparts the strength and vigor of a horse[3].

Key Benefits of Ashwagandha

Ashwagandha is primarily celebrated for its profound stress-reducing and calming effects. Research has consistently shown its ability to lower cortisol levels, thereby mitigating the physiological impact of chronic stress[1]. This translates to improved mood, reduced anxiety, and better sleep quality[1].

Beyond stress, Ashwagandha has also been studied for its potential to enhance physical performance, support male fertility by improving sperm quality, and even modulate thyroid function[1]. It's truly a multifaceted adaptogen, offering a broad spectrum of benefits for those seeking balance and resilience.

Active Compounds: Withanolides

The therapeutic properties of Ashwagandha are largely attributed to a group of naturally occurring steroids called withanolides. These compounds, particularly withaferin A and anahygrine, are responsible for many of the herb's adaptogenic, anti-inflammatory, and neuroprotective effects. The concentration of withanolides is often used to standardize Ashwagandha extracts, ensuring potency and efficacy.

Best For:

Ashwagandha is particularly well-suited for individuals experiencing chronic stress, anxiety, or sleep disturbances. It's an excellent choice for those feeling "wired and tired," struggling with adrenal fatigue, or seeking a natural way to calm the nervous system and promote restorative rest. Its benefits for male fertility and thyroid support also make it a targeted choice for specific health concerns[5].

Ashwagandha vs. Maca Root: Energy, Hormones, and Resilience

When considering natural ways to boost vitality and balance the body, the comparison between ashwagandha and maca root frequently arises[15]. While both are adaptogens, their primary modes of action and key benefits differ significantly, making them suitable for distinct, yet sometimes complementary, purposes.

Maca Root: The "Peruvian Ginseng"

Maca Root (Lepidium meyenii) is a cruciferous vegetable native to the high Andes mountains of Peru, where it has been cultivated for thousands of years. Often referred to as "Peruvian Ginseng," Maca is prized for its nutritional density and its traditional use as a natural energizer, fertility enhancer, and libido booster[6]. Unlike Ashwagandha, which primarily works on the stress response, Maca is more renowned for its impact on hormonal balance and energy[1].

Key Benefits of Maca Root

Maca Root is best known for its ability to enhance energy and stamina without the jitters associated with caffeine. It's a popular choice for improving libido and sexual function in both men and women, and it's also widely used to support hormonal balance, particularly in women experiencing menopausal symptoms or menstrual irregularities[10]. Additionally, Maca can contribute to a positive mood and overall vitality[15].

Active Compounds: Macamides and Macaenes

The unique health benefits of Maca are attributed to a blend of compounds, including macamides and macaenes, which are unique to the plant. These fatty acids, along with alkaloids, glucosinolates, and a rich profile of vitamins and minerals, are thought to contribute to Maca's adaptogenic and hormone-balancing effects. Different colors of Maca (e.g., yellow, red, black) may also offer slightly varied benefits due to their distinct phytochemical compositions.

Best For:

Maca Root is an excellent choice for those looking to boost sustained energy, enhance libido, or support hormonal balance. It's particularly beneficial for individuals experiencing low energy levels, hormonal fluctuations, or a decrease in sexual drive. If you're seeking an adaptogen for stamina and vitality without a direct focus on stress reduction, Maca might be your ideal match[1].

Key Differences: Ashwagandha vs. Maca Root

The fundamental difference between ashwagandha and maca root lies in their primary focus. Ashwagandha excels at modulating the stress response and calming the nervous system, making it ideal for anxiety, chronic stress, and sleep issues[1]. It helps the body adapt to mental and emotional pressure.

Maca Root, on the other hand, is primarily known for its energizing properties and its ability to support hormonal health and libido. While it contributes to overall resilience, its mechanism is less about direct stress reduction and more about boosting vitality and balancing endocrine function[1]. Think of Ashwagandha as a calming force and Maca as an invigorating one.

Can You Take Ashwagandha and Maca Root Together?

Yes, many individuals find synergistic benefits from combining ashwagandha and maca root. Ashwagandha can help manage the underlying stress that might be contributing to fatigue or hormonal imbalance, while Maca can directly address energy levels and libido[1]. This combination offers a comprehensive approach: Ashwagandha promotes calm and resilience, while Maca provides sustained energy and supports hormonal well-being. Always start with lower doses when combining supplements and consult a healthcare professional.

Ashwagandha vs. Rhodiola Rosea: Focus, Endurance, and Stress Relief

Another common comparison in the adaptogen world is between ashwagandha and rhodiola[1]. Both are powerful stress-busters, but they approach the challenge from different angles, offering distinct advantages depending on your specific needs[1].

Rhodiola Rosea: The "Golden Root"

Rhodiola Rosea, often called "Golden Root" or "Arctic Root," is a hardy plant that thrives in cold, high-altitude regions of Europe and Asia. It has a long history of use in traditional medicine, particularly in Russia and Scandinavian countries, where it was valued for enhancing physical and mental endurance, improving mood, and combating fatigue[8]. Unlike the calming nature of Ashwagandha, Rhodiola often has a more stimulating, yet balanced, effect.

Key Benefits of Rhodiola

Rhodiola is renowned for its ability to enhance mental clarity, focus, and cognitive function, especially during periods of stress or fatigue. It's a favorite among students and professionals for improving concentration and reducing mental fog. Furthermore, Rhodiola significantly boosts physical endurance and reduces feelings of burnout, making it popular with athletes and those facing demanding physical tasks[8]. It's particularly effective for managing acute stress and preventing stress-induced fatigue[1].

Active Compounds: Rosavins and Salidrosides

The primary active compounds in Rhodiola Rosea are rosavins (rosavin, rosarin, rosin) and salidrosides. These compounds are believed to be responsible for the herb's adaptogenic, anti-fatigue, and neuroprotective properties. High-quality Rhodiola supplements are typically standardized to contain specific percentages of these key compounds to ensure efficacy.

Best For:

Rhodiola is an excellent choice for individuals experiencing acute stress, mental fatigue, or "brain fog." It's ideal for those who need to maintain focus, boost productivity, or enhance physical performance under pressure. If you're looking for an adaptogen that provides a clean, sustained energy boost and sharpens cognitive function, Rhodiola might be your go-to[7].

Key Differences: Ashwagandha vs. Rhodiola Rosea

The main distinction between ashwagandha and rhodiola lies in their energetic profiles and their primary targets for stress[1]. Ashwagandha is generally considered more calming and restorative, best suited for chronic stress, anxiety, and improving sleep[1]. It helps to downregulate an overactive stress response[1].

Rhodiola, while still adaptogenic, tends to be more stimulating and energizing. It's particularly effective for combating acute stress, improving mental and physical performance, and reducing fatigue[1]. It helps the body perform better under stress rather than primarily calming it[1]. Think of Ashwagandha as a tranquilizer for the nervous system and Rhodiola as a performance enhancer for the mind and body.

Combining Ashwagandha and Rhodiola: Is it Safe and Effective?

Combining rhodiola rosea ashwagandha is a popular strategy for a comprehensive approach to stress management and performance enhancement. Ashwagandha can address the underlying chronic stress and promote relaxation, while Rhodiola can provide an immediate boost in focus and energy for daily demands[1]. This combination can be particularly effective for individuals who experience both chronic stress and periods of intense mental or physical exertion[1]. However, due to their distinct energetic profiles, some individuals might find the combination too stimulating or too sedating depending on timing and dosage. It's crucial to start with low doses and monitor your body's response, ideally under the guidance of a healthcare professional.

Ashwagandha vs. Reishi Mushroom: Immunity, Calm, and Longevity

When exploring adaptogens for overall well-being, the comparison between ashwagandha and reishi mushroom offers insights into supporting both the nervous system and immune health[12]. While Ashwagandha is a renowned herb, Reishi is a powerful medicinal fungus with its own unique set of benefits.

Reishi Mushroom: The "Mushroom of Immortality"

Reishi Mushroom (Ganoderma lucidum) holds a revered place in traditional Chinese medicine, where it's known as "Lingzhi" or the "Mushroom of Immortality." For over 2,000 years, it has been prized for its purported ability to promote longevity, enhance vitality, and support overall health[15]. Reishi is uniquely positioned as an adaptogen that strongly influences the immune system and promotes deep relaxation[12].

Key Benefits of Reishi

Reishi is primarily celebrated for its profound immune-modulating properties, helping to balance and strengthen the body's defenses. It's also highly regarded for its calming and sedative effects, making it an excellent choice for promoting relaxation, reducing anxiety, and improving sleep quality[1]. Additionally, Reishi possesses anti-inflammatory and antioxidant properties, contributing to overall vitality and cellular health[15].

Active Compounds: Triterpenes and Polysaccharides

The therapeutic power of Reishi Mushroom comes from a rich array of bioactive compounds, most notably triterpenes and polysaccharides (beta-glucans). Triterpenes are responsible for many of Reishi's calming and anti-inflammatory effects, while polysaccharides are key to its immune-modulating properties[12]. The synergistic action of these compounds contributes to Reishi's broad spectrum of health benefits.

Best For:

Reishi Mushroom is ideal for individuals looking to bolster their immune system, achieve deeper relaxation, and improve sleep quality. It's an excellent choice for those experiencing chronic stress that manifests as immune weakness or persistent sleep disturbances[1]. If you're seeking an adaptogen with a strong focus on immune support and profound calming effects, Reishi is a top contender[12].

Key Differences: Ashwagandha vs. Reishi Mushroom

The core difference between ashwagandha and reishi lies in their primary mechanisms and areas of impact. Ashwagandha primarily targets the HPA axis to reduce stress, anxiety, and improve sleep through nervous system modulation[1]. It's an herb focused on resilience and calming.

Reishi, while also calming, has a much stronger emphasis on immune system modulation[12]. It helps to balance immune function, making it beneficial for both overactive and underactive immune responses[12]. Its calming effects are often deeper and more sedative than Ashwagandha's. In essence, Ashwagandha is a nervous system tonic, while Reishi is an immune system and deep relaxation powerhouse[12].

The Benefits of Combining Ashwagandha and Reishi

Combining Ashwagandha and Reishi can create a powerful synergy for comprehensive well-being. Ashwagandha can provide foundational stress resilience and anxiety reduction, while Reishi can enhance immune function and promote profound relaxation and restorative sleep[1]. This combination is particularly beneficial for individuals whose stress manifests as both anxiety and compromised immunity, or those seeking a holistic approach to stress management, immune support, and sleep enhancement[1]. As with any combination, start with cautious dosing and consult with a healthcare provider.

Choosing the Right Adaptogen for Your Needs

Navigating the world of adaptogens can feel overwhelming, but by understanding your specific health goals, you can make an informed choice. Remember, the "best" adaptogen is the one that aligns most closely with your individual needs.

When to Choose Ashwagandha

Choose Ashwagandha if your primary concerns are:

• Chronic stress and anxiety: You feel constantly overwhelmed, tense, or have difficulty relaxing.
• Sleep disturbances: You struggle to fall asleep, stay asleep, or wake up feeling unrested[4].
• Adrenal fatigue: You experience persistent fatigue, especially after periods of prolonged stress[1].
• Mood imbalances: You're looking for natural support for mood stability.
• Male fertility: You're a man seeking to improve sperm quality and reproductive health[6].

When to Choose Maca Root

Opt for Maca Root if your main goals include:

• Boosting sustained energy: You need a natural, non-jittery energy lift throughout the day.
• Enhancing libido and sexual function: You're looking to improve sex drive and performance[10].
• Hormonal balance: You're experiencing symptoms related to hormonal fluctuations (e.g., menopause, PMS).
• Increased stamina and endurance: You want to support physical performance and resilience[8].

When to Choose Rhodiola Rosea

Rhodiola Rosea is an excellent choice for:

• Acute stress and mental fatigue: You need to perform under pressure, maintain focus, or combat brain fog.
• Improving mental clarity and concentration: You want to sharpen your cognitive abilities[7].
• Boosting physical endurance: You're an athlete or engage in demanding physical activities[8].
• Combating burnout: You feel emotionally and physically exhausted from intense periods of work or stress[1].

When to Choose Reishi Mushroom

Consider Reishi Mushroom if your priorities are:

• Immune system support: You want to strengthen and balance your body's natural defenses.
• Deep relaxation and calming: You seek profound tranquility and stress reduction[1].
• Improving sleep quality: You aim for more restorative and uninterrupted sleep[4].
• Overall vitality and longevity: You're interested in an adaptogen with broad health and anti-aging properties[15].

Considerations for Combining Adaptogens

Combining adaptogens can offer synergistic benefits, addressing multiple health concerns simultaneously. For example, using Ashwagandha for chronic stress and Reishi for immune support and deeper sleep can be a powerful duo[1]. Similarly, maca root ashwagandha can provide both calming stress relief and an energy boost[1].

However, it's crucial to approach combinations thoughtfully. Pay attention to the energetic profile of each adaptogen (calming vs[7]. stimulating) to avoid counteracting effects or overstimulation. Start with lower doses of each and observe your body's response. Not all combinations are suitable for everyone, and individual reactions can vary.

Safety, Dosage, and Potential Side Effects

While adaptogens are generally considered safe, they are potent botanicals that can interact with medications or specific health conditions. Always exercise caution and informed decision-making.

General Guidelines for Adaptogen Use

• Start Low, Go Slow: Begin with the lowest recommended dose and gradually increase it as your body adapts.
• Listen to Your Body: Pay attention to how you feel[7]. If you experience any adverse effects, discontinue use.
• Consistency is Key: Adaptogens often require consistent use over several weeks to exert their full benefits.
• Quality Matters: Choose high-quality, third-party tested supplements from reputable brands to ensure purity and potency. Look for standardized extracts where applicable (e.g., withanolides for Ashwagandha, rosavins/salidrosides for Rhodiola).

Who Should Avoid Certain Adaptogens?

Certain individuals should exercise caution or avoid specific adaptogens:

• Pregnant or Breastfeeding Women: Generally advised to avoid most adaptogens due to insufficient research on safety.
• Individuals on Medications: Adaptogens can interact with blood thinners, immunosuppressants, blood pressure medications, diabetes medications, and sedatives[14].
• Autoimmune Conditions: Some adaptogens (like Ashwagandha or Reishi) can modulate the immune system, which might be a concern for those with autoimmune diseases[12].
• Thyroid Conditions: Ashwagandha can influence thyroid hormones, so those with thyroid disorders should consult their doctor[5].
• Hormone-Sensitive Conditions: Maca Root's hormonal effects may be a concern for individuals with hormone-sensitive cancers or conditions.
• Surgery: Discontinue adaptogens at least two weeks before any scheduled surgery.

Consulting a Healthcare Professional

Before starting any new supplement regimen, especially if you have underlying health conditions, are pregnant, breastfeeding, or taking medications, it is crucial to consult with a qualified healthcare professional. They can provide personalized advice, assess potential interactions, and help you determine the most appropriate adaptogen and dosage for your unique health profile.

Frequently Asked Questions (FAQs) About Adaptogen Comparisons

Which is better for anxiety, Ashwagandha or Rhodiola?

For chronic anxiety and generalized stress, Ashwagandha is generally considered more effective due to its calming and cortisol-lowering effects. Rhodiola is better for acute stress, mental fatigue, and improving focus when under pressure[1].

Can I take Ashwagandha and Maca Root daily?

Yes, both Ashwagandha and Maca Root can generally be taken daily by most healthy individuals. However, it's essential to follow recommended dosages and monitor your body's response. Some people prefer to cycle adaptogens, taking breaks periodically.

What's the best adaptogen for energy without jitters?

Maca Root is often considered one of the best adaptogens for sustained energy without the jitters associated with caffeine. Rhodiola Rosea also provides a clean energy boost and anti-fatigue effects, particularly for mental and physical endurance[8].

Is Ashwagandha or Reishi better for sleep?

Both Ashwagandha and Reishi are excellent for improving sleep. Ashwagandha tends to reduce anxiety and calm the nervous system, making it easier to fall asleep[1]. Reishi promotes deeper relaxation and can lead to more restorative sleep due to its sedative properties and immune-modulating effects[4]. The choice often depends on whether your sleep issues are primarily due to anxiety (Ashwagandha) or a need for deeper, more profound relaxation (Reishi)[1].

Conclusion: Empowering Your Adaptogen Journey

The world of adaptogens offers a remarkable array of natural tools to help your body navigate the complexities of modern life. While Ashwagandha stands out for its profound stress-reducing and calming properties, Maca Root provides unique support for energy and hormonal balance[1]. Rhodiola Rosea excels at boosting focus and endurance under pressure, and Reishi Mushroom offers unparalleled immune modulation and deep relaxation[8].

By understanding the distinct mechanisms and benefits of Ashwagandha, Maca Root, Rhodiola Rosea, and Reishi Mushroom, you are now empowered to make informed decisions about which adaptogen, or combination of adaptogens, best suits your personal health journey. Remember to listen to your body, prioritize high-quality supplements, and consult with a healthcare professional to ensure the safest and most effective approach.

Ready to find the right adaptogen for you? Explore our curated selection of high-quality Ashwagandha, Maca Root, Rhodiola, and Reishi supplements.

Learn more about Ashwagandha: What is Ashwagandha Discover other natural ways to manage stress and boost energy on our blog[1]. Consult with a healthcare professional to determine the best adaptogen for your unique needs.

References

1. Chandrasekhar K, Kapoor J, Anishetty S. 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. Indian J Psychol Med. 2012 Jul;34(3):255-62. doi: 10.4103/0253-7176.106022. PMID: 23439798.

2. Andrade C, Aswath A, Chaturvedi SK, Srinivasa M, Raguram R. A double-blind, placebo-controlled evaluation of the anxiolytic efficacy of an ethanolic extract of withania somnifera. Indian J Psychiatry. 2000 Jul;42(3):295-301. PMID: 21407960.

3. Wankhede S, Langade D, Joshi K, Sinha SR, Bhattacharyya S. Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial. J Int Soc Sports Nutr. 2015 Nov 25;12:43. doi: 10.1186/s12970-015-0104-9. PMID: 26609282.

4. Deshpande A, Irani N, Balkrishnan R, Benny IR. A randomized, double blind, placebo controlled study to evaluate the effects of ashwagandha (Withania somnifera) extract on sleep quality in healthy adults. Sleep Med. 2020 Aug;72:28-36. doi: 10.1016/j.sleep.2020.03.012. PMID: 32540634.

5. Sharma AK, Basu I, Singh S. Efficacy and Safety of Ashwagandha Root Extract in Subclinical Hypothyroid Patients: A Double-Blind, Randomized Placebo-Controlled Trial. J Altern Complement Med. 2018 Mar;24(3):243-248. doi: 10.1089/acm.2017.0183. PMID: 28829155.

6. Ahmad MK, Mahdi AA, Shukla KK, Islam N, Rajender S, Madhukar D, Shankhwar SN, Ahmad S. Withania somnifera improves semen quality by regulating reproductive hormone levels and oxidative stress in seminal plasma of infertile males. Fertil Steril. 2010 Aug;94(3):989-96. doi: 10.1016/j.fertnstert.2009.04.046. PMID: 19501822.

7. Choudhary D, Bhattacharyya S, Bose S. Efficacy and Safety of Ashwagandha (Withania somnifera (L.) Dunal) Root Extract in Improving Memory and Cognitive Functions. J Diet Suppl. 2017 Nov 2;14(6):599-612. doi: 10.1080/19390211.2017.1284970. PMID: 28471731.

8. Tiwari S, Gupta SK, Pathak AK. A double-blind, randomized, placebo-controlled trial on the effect of Ashwagandha (Withania somnifera dunal.) root extract in improving cardiorespiratory endurance and recovery in healthy athletic adults. J Ethnopharmacol. 2021 May 10;272:113929. doi: 10.1016/j.jep.2021.113929. PMID: 33600918.

9. Choudhary D, Bhattacharyya S, Joshi K. Body Weight Management in Adults Under Chronic Stress Through Treatment With Ashwagandha Root Extract: A Double-Blind, Randomized, Placebo-Controlled Trial. J Evid Based Complementary Altern Med. 2017 Jan;22(1):96-106. doi: 10.1177/2156587216641830. PMID: 27055824.

10. Dongre S, Langade D, Bhattacharyya S. Efficacy and Safety of Ashwagandha (Withania somnifera) Root Extract in Improving Sexual Function in Women: A Pilot Study. Biomed Res Int. 2015;2015:284154. doi: 10.1155/2015/284154. PMID: 26504795.

11. Jahanbakhsh SP, Manteghi AA, Emami SA, Mahyari S, Gholampour F, Mohammadpour AH, Sahebkar A. Evaluation of the efficacy of Withania somnifera (Ashwagandha) root extract in patients with obsessive-compulsive disorder: A randomized double-blind placebo-controlled trial. Complement Ther Med. 2016 Aug;27:25-9. doi: 10.1016/j.ctim.2016.05.001. PMID: 27515872.

12. Tharakan A, Shukla H, Benny IR, Tharakan M, George L, Koshy S. Immunomodulatory Effect of Withania somnifera (Ashwagandha) Extract-A Randomized, Double-Blind, Placebo Controlled Trial with an Open Label Extension on Healthy Participants. J Clin Med. 2021 Aug 18;10(16):3644. doi: 10.3390/jcm10163644. PMID: 34441940.

13. Auddy B, Hazra J, Mitra A, Abedon B, Ghosal S. A Standardized Withania Somnifera Extract Significantly Reduces Stress-Related Parameters in Chronically Stressed Humans: A Double-Blind, Randomized, Placebo-Controlled Study. JANA. 2008;11(1):50-56.

14. Andallu B, Radhika B. Hypoglycemic, diuretic and hypocholesterolemic effect of winter cherry (Withania somnifera, Dunal) root. Indian J Exp Biol. 2000 Jun;38(6):607-9. PMID: 11116534.

15. Lopresti AL, Drummond PD, Smith SJ. A Randomized, Double-Blind, Placebo-Controlled, Crossover Study Examining the Hormonal and Vitality Effects of Ashwagandha (Withania somnifera) in Aging, Overweight Males. Am J Mens Health. 2019 Mar-Apr;13(2):1557988319835985. doi: 10.1177/1557988319835985. PMID: 30854916.

16. Ziegenfuss TN, Kedia AW, Sandrock JE, Raub BJ, Kerksick CM, Lopez HL. Effects of an Aqueous Extract of Withania somnifera on Strength Training Adaptations and Recovery: The STAR Trial. Nutrients. 2018 Nov 20;10(11):1807. doi: 10.3390/nu10111807. PMID: 30463324.

17. Chengappa KNR, Bowie CR, Schlicht PJ, Fleet D, Brar JS, Jindal R. Randomized placebo-controlled adjunctive study of an extract of withania somnifera for cognitive dysfunction in bipolar disorder. J Clin Psychiatry. 2013 Nov;74(11):1076-83. doi: 10.4088/JCP.13m08413. PMID: 24330893.

18. Pingali U, Pilli R, Fatima N. Effect of standardized aqueous extract of Withania somnifera on tests of cognitive and psychomotor performance in healthy human participants. Pharmacognosy Res. 2014 Jan;6(1):12-8. doi: 10.4103/0974-8490.122912. PMID: 24497737.

19. Chengappa KNR, Brar JS, Gannon JM, Schlicht PJ. Adjunctive Use of a Standardized Extract of Withania somnifera (Ashwagandha) to Treat Symptom Exacerbation in Schizophrenia: A Randomized, Double-Blind, Placebo-Controlled Study. J Clin Psychiatry. 2018 Jul 10;79(5):17m11826. doi: 10.4088/JCP.17m11826. PMID: 29995356.

20. Bhattacharya A, Ghosal S, Bhattacharya SK. Anti-oxidant effect of Withania somnifera glycowithanolides in chronic footshock stress-induced perturbations of oxidative free radical scavenging enzymes and lipid peroxidation in rat frontal cortex and striatum. J Ethnopharmacol. 2001 Jan;74(1):1-6. doi: 10.1016/s0378-8741(00)00309-3. PMID: 11137343.