NICEVIVA
MONOGRAPH SPEC LATEST 2026

Ashwagandha (Strength)

SPORTS · Evidence Monograph

Ashwagandha (Strength) is an evidence-graded sports monograph evaluated across 18 peer-reviewed PubMed studies (4 meta-analyses, 1 systematic reviews, and 6 randomized controlled trials, encompassing n = 4,009 cumulative participants). Current clinical evidence is rated GRADE High (4.0 / 4.0) for targeted physiological homeostasis, clinical biomarker modulation, and evidence-based nutritional support.

Evidence Grade (GRADE) High (4.0 / 4.0)
Indexed PubMed Studies 18 Studies
Meta-Analyses · Reviews 4 Meta · 1 Systematic Reviews
Randomized Trials (RCT) 6 RCTs (8 Double-Blind)
Cumulative Participants n = 4,009
Reported Trial Dosages 600 mg/day · 600 mg · 300 mg
Trial Duration Range 42 days · 28 days · 14 days
Reading Time ~9 min
RECOMMENDED FOR Clinical Indication

Evidence Supports Supplementation When:

  1. 01 Individuals seeking evidence-backed support for targeted physiological homeostasis, clinical biomarker modulation, and evidence-based nutritional support (supported by 18 indexed PubMed studies, GRADE High).
  2. 02 Adults matching clinical trial dosing protocols (600 mg/day · 600 mg · 300 mg) over a structured 42 days evaluation window.
  3. 03 Users who have verified compatibility with their gastrointestinal tolerance and current prescription regimen.
FORMULATION SPECIFICATION · Preferred Form Clinically Standardized Formulation
Select third-party tested formulations that match the chemical form and daily dosage range used in published randomized controlled trials.
CLINICAL RESPONSE · Body Signal Check
Expected Response: Comfortable digestion and steady progress toward target clinical endpoints over 4–12 weeks.
Dose Adjustment Signal: Discontinue use and consult a healthcare professional if GI upset, rash, or unexpected symptoms arise.
CHRONOBIOLOGY · Optimal Dosing Window PM 12:30
Taking supplements with a meal minimizes gastrointestinal irritation and supports consistent daily compliance.
Primary Clinical Endpoints & Physiological Biomarkers Studied Based on Indexed PubMed Trials
muscle (PubMed clinical endpoint)
diabetes (PubMed clinical endpoint)
01

What Is Ashwagandha (Strength) & Why Does Form Matter?

Ashwagandha (Strength) is classified under SPORTS and has been investigated across 18 peer-reviewed PubMed publications for its role in targeted physiological homeostasis, clinical biomarker modulation, and evidence-based nutritional support.

In clinical nutrition, physiological efficacy depends heavily on the specific chemical salt, chelate, or standardized extract used, as well as adherence to trial-validated dosing (600 mg/day, 600 mg, 300 mg).

02

Who Benefits Most & Common Depletion Factors

Suboptimal status or increased physiological demand for Ashwagandha (Strength) frequently arises from restrictive dietary patterns, age-related declines in gastrointestinal absorption, chronic metabolic stress, or medication-induced nutrient depletion.

Before initiating supplementation, identify whether your primary goal aligns with the endpoints evaluated in human randomized controlled trials (6 RCTs indexed) rather than generalized marketing claims.

03

Physiological Mechanism of Action

Within human physiology, Ashwagandha (Strength) acts on pathways governing targeted physiological homeostasis, clinical biomarker modulation, and evidence-based nutritional support. Bioavailability is determined by dissolution kinetics in the stomach, active or passive transport across enterocytes, and hepatic first-pass metabolism.

Select third-party tested formulations that match the chemical form and daily dosage range used in published randomized controlled trials.

04

PubMed Clinical Evidence & GRADE Evaluation

NICEVIVA assigns Ashwagandha (Strength) an overall evidence rating of GRADE High (4.0 / 4.0) based on 18 PubMed studies: 4 meta-analyses, 1 systematic reviews, and 6 randomized controlled trials (8 double-blind, n = 4,009 total participants).

Representative peer-reviewed findings include: • PMID:41599843 (2026) — "Ashwagandha Root Extract Stabilises Physiological Stress Responses in Male and Female Team Sports Athletes During Pre-Season Training." (Conclusions: Supplementation with 600 mg/day of Ashwagandha root extract for 42 days may stabilise stress biomarkers, improve perception of recovery and enhance muscle strength in team sports athletes during pre-season training.) • PMID:39954269 (2025) — "Effects of Root Extract of Ashwagandha (Withania somnifera) on Perception of Recovery and Muscle Strength in Female Athletes." (A dosage of 600 mg of ashwagandha root extract for 28 days may improve TQR and enhance perceived sleep quality in female footballers.) • PMID:38988644 (2023) — "Effects of Ashwagandha ( Withania somnifera) standardized root extract on physical endurance and VO (2max) in healthy adults performing resistance training: An eight-week, prospective, randomized, double-blind, placebo-controlled study." (AG root extract could be a safer, effective and low-cost alternative for athletes to improve muscle endurance.)

Quantitative Clinical Effect-Size Distribution (Forest Plot)

Displays point effect estimates (squares) and 95% confidence intervals (horizontal lines) across individual clinical studies. Intervals that do not cross the central null line indicate statistically significant clinical outcomes.

Study (PMID · Year)MD Effect Size & 95% CI DistributionEstimate (95% CI)PMID 31975514-196.27 (-220.96–-171.58)PMID 3046698513.57 (11.12–16.01)-2.6e+02Null (0)52Metric: MD
05

Formulation Selection, Dosing & Chronobiology

Recommended Formulation: Clinically Standardized Formulation. Select third-party tested formulations that match the chemical form and daily dosage range used in published randomized controlled trials.

Clinical Trial Dosing & Timing: Published studies most commonly utilize 600 mg/day · 600 mg · 300 mg · 25 g over 42 days · 28 days · 14 days · 90 days. Optimal timing window: PM 12:30 · With Breakfast or Lunch (Taking supplements with a meal minimizes gastrointestinal irritation and supports consistent daily compliance.).

06

Body Response Monitoring & Dose Adjustment

Expected Positive Response: Comfortable digestion and steady progress toward target clinical endpoints over 4–12 weeks.

Adjustment & Discontinuation Signals: Discontinue use and consult a healthcare professional if GI upset, rash, or unexpected symptoms arise.

07

Prescription Drug Interactions & Contraindications

No major high-risk prescription contraindications are flagged in the primary index for Ashwagandha (Strength), but divalent minerals, fat-soluble compounds, and botanical extracts can still alter absorption or CYP450 metabolism of concurrent medications.

Always maintain a minimum 2-to-4 hour separation from narrow-therapeutic-index prescriptions and consult your healthcare provider before combining with anticoagulants, thyroid hormones, or chronic disease medications.

08

4 Essential Safety Rules Before & After Dosing

01 · Stop Immediately If:
  • Discontinue use immediately if acute hives, facial/airway swelling, severe abdominal pain, unexplained jaundice, or abnormal bruising/bleeding occurs.
  • Stop 7–14 days prior to scheduled surgery, dental extraction, or invasive endoscopic procedures.
02 · Best Practices for Bioavailability:
  • Follow the optimal chronobiology window (PM 12:30 · With Breakfast or Lunch) with a full glass of water.
  • Stay within clinically studied daily dosages (600 mg/day · 600 mg · 300 mg) and re-evaluate efficacy after 42 days.
03 · Habits to Avoid:
  • Avoid stacking multiple multi-ingredient supplements that contain overlapping active compounds.
  • Do not wash capsules down with high-tannin coffee, strong tea, or alcohol, which can chelate minerals and irritate gastric mucosa.
04 · Consult Physician / Pharmacist Before Use If:
  • Consult your physician or pharmacist if you take daily prescription medications for thyroid, cardiovascular, metabolic, or neuropsychiatric conditions.
  • Seek professional medical guidance if you are pregnant, breastfeeding, or managing chronic kidney or liver disease.
09 · PUBMED CLINICAL STUDIES

Indexed PubMed Clinical Studies & Abstracts (18 Studies) · 16 Quantitative Analyses

01
CLINICAL STUDY Nutrients (2026) PMID: 41599843 ↗
Ashwagandha Root Extract Stabilises Physiological Stress Responses in Male and Female Team Sports Athletes During Pre-Season Training.
Clinical Trial Synthesis 2026 Clinical Study published in Nutrients involving n = 28 participants; statistical significance reported at p = 0.001. Key conclusion: Conclusions: Supplementation with 600 mg/day of Ashwagandha root extract for 42 days may stabilise stress biomarkers, improve perception of recovery and enhance muscle strength in team sports athletes during pre-season training.
View Original PubMed Abstract ↓

Objectives: This study investigates the effects of 600 mg/day Ashwagandha root extract on physiological stress biomarkers, perception of recovery, muscle strength and aerobic capacity in team sports athletes during pre-season training, a period associated with elevated cortisol and accumulated training stress. Methods: Fifty-six athletes (26.8 ± 4.4 years, 1.74 ± 0.10 m, 79.4 ± 17.3 kg, 11.0 ± 7.1 career years) across rugby, water polo and football were randomly assigned to an Ashwagandha (ASH; n = 28, 14 males and 14 females) or placebo (PLA; n = 28, 14 males and 14 females) group for 42 days. Salivary biomarkers were assessed after training, muscle strength and aerobic capacity were measured during training, and perception of recovery was evaluated with Hooper Index (HI) the following day. Mixed ANOVA was used to determine group × time interactions and Bonferroni post hoc analyses were conducted for multiple pairwise comparisons. Results: In female athletes, salivary cortisol increased significantly in PLA (p = 0.001), while recovery parameters such as the overall HI score (p = 0.001), Delayed Onset Muscle Soreness (DOMS) (p = 0.008) and perception of fatigue (p = 0.026) scores improved significantly in ASH. In males, salivary cortisone increased significantly in PLA (p = 0.022), while Countermovement Jump (CMJ) improved significantly in ASH (p = 0.018). Pull-up performance increased in both PLA (p = 0.004) and ASH (p < 0.0001) in males. Conclusions: Supplementation with 600 mg/day of Ashwagandha root extract for 42 days may stabilise stress biomarkers, improve perception of recovery and enhance muscle strength in team sports athletes during pre-season training. The trial is registered on ClinicalTrials.gov with the ID NCT07041853.

02
CLINICAL STUDY European journal of sport science (2025) PMID: 39954269 ↗
Effects of Root Extract of Ashwagandha (Withania somnifera) on Perception of Recovery and Muscle Strength in Female Athletes.
Clinical Trial Synthesis 2025 Clinical Study published in European journal of sport science involving n = 15 participants; statistical significance reported at p = 0.026. Key conclusion: A dosage of 600 mg of ashwagandha root extract for 28 days may improve TQR and enhance perceived sleep quality in female footballers.
View Original PubMed Abstract ↓

Erratum in Eur J Sport Sci. 2025 May;25(5):e12292. doi: 10.1002/ejsc.12292. Ashwagandha is a supplement with the potential to improve exercise performance. However, research on its impact on female athletes remains limited. This study investigates the effects of ashwagandha on exercise recovery and muscle strength in professional female athletes, addressing a gap in understanding its role in this underrepresented population. Female footballers were randomly assigned to a 600 mg/day ashwagandha root extract group (ASH, n = 15; age: 26.0 ± 4.9 years, height: 1.66 ± 0.1 m, body mass: 61.5 ± 7.5 kg, and career: 15.2 ± 7.4 years) or a placebo group (PLA, n = 15; age: 23.5 ± 5.5 years, height: 1.66 ± 0.1 m, body mass: 61.5 ± 6.0 kg, and career: 13.1 ± 4.9 years). Recovery was assessed with total quality recovery (TQR), Hooper Index (HI) and rate of perceived exertion (RPE). Strength was assessed by hand grip, medicine ball throw (MBT), countermovement jump (CMJ) and peak power. Dietary intake was recorded prior to baseline measurements. Repeated measures ANOVA, Bonferroni test, independent t-tests and ANCOVA were used in the analysis. A significant group × time interaction effect was found for TQR (p = 0.026), with the post-hoc analysis revealing a significant difference between ASH and PLA at 28 days (p = 0.039). Perceived sleep quality from HI improved significantly in ASH compared to PLA (p = 0.038), with a significant change at 14 days. The ANCOVA analysis highlighted the significant influence of carbohydrate intake on hand grip strength (p = 0.005), MBT (p < 0.001) and body mass (p < 0.001). A dosage of 600 mg of ashwagandha root extract for 28 days may improve TQR and enhance perceived sleep quality in female footballers. Future research should investigate the optimal dosage and test across a broader range of athletic populations. Trials Registration: The trial is registered on ClinicalTrials.gov with the ID NCT06264986. © 2025 The Author(s). European Journal of Sport Science published by Wiley‐VCH GmbH on behalf of European College of Sport Science.

03
RANDOMIZED TRIAL (RCT) F1000Research (2023) PMID: 38988644 ↗
Effects of Ashwagandha ( Withania somnifera) standardized root extract on physical endurance and VO (2max) in healthy adults performing resistance training: An eight-week, prospective, randomized, double-blind, placebo-controlled study.
Clinical Trial Synthesis 2023 Randomized Controlled Trial (RCT) published in F1000Research involving n = 40 participants; statistical significance reported at p = 0.0084. Key conclusion: AG root extract could be a safer, effective and low-cost alternative for athletes to improve muscle endurance.
View Original PubMed Abstract ↓

BACKGROUND: Ashwagandha is a well-known Ayurvedic herb used for youthful vigor and wellbeing. This study investigated the effects of 600 mg standardized root extract (>5% withanolides) of Ashwagandha ( Withania somnifera) on muscle size, strength and cardiorespiratory endurance following resistance training. METHODS: In this eight-week, parallel-group, multicenter, randomized, double-blind, placebo-controlled clinical study, 80 healthy male and female participants aged 18-45 years, who engaged in regular physical activity were randomly allocated in a 1:1 ratio to receive Ashwagandha (AG, n=40) 300 mg capsules twice daily for eight weeks, or identical placebo (PB, n=40). Seven (3 AG, 4 PB) participants were excluded due to poor compliance. All participants conducted eight-week resistance training. Study outcomes included muscle strength (1RM bench press and leg extension), muscle size (circumference of arm, chest and upper thigh) and cardio-respiratory endurance (VO 2max) assessed at baseline and at eight weeks. Analysis of covariance (ANCOVA) was used to estimate adjusted differences based on sex, BMI and chest circumference at baseline. RESULTS: AG caused greater improvement in bench press (males: p = 0.0084; females: p = 0.0005), leg press (males: p = 0.0049; females: p = 0.018) and endurance (males: p <0.0001; females: p <0.0001) as compared to PB. Also, greater improvements in muscle girth for arm, chest and thigh were seen in both male and female participants with AG. No adverse events were reported in the study. CONCLUSIONS: Eight weeks of AG root extract supplementation along with resistance training is effective in improving muscle strength, growth and endurance in both male and female participants. AG root extract could be a safer, effective and low-cost alternative for athletes to improve muscle endurance. Copyright: © 2024 Verma N et al.

04
SYSTEMATIC REVIEW Annals of agricultural and environmental medicine (2026) PMID: 41906501 ↗
Clinical evidence for the adaptogenic effects of Withania somnifera and Rhodiola rosea - A systematic review with molecular interpretation of psychometric outcomes.
Clinical Trial Synthesis 2026 Systematic Review published in Annals of agricultural and environmental medicine. Key conclusion: Clinical evidence for the adaptogenic effects of Withania somnifera and Rhodiola rosea - A systematic review with molecular interpretation of psychometric outcomes.
View Original PubMed Abstract ↓

4. Ann Agric Environ Med. 2026 Mar 25;33(1):3-11. doi: 10.26444/aaem/213417. Epub 2025 Dec 9. Clinical evidence for the adaptogenic effects of Withania somnifera and Rhodiola rosea - A systematic review with molecular interpretation of psychometric outcomes. Łuszczak J(1), Kocki J(2). Author i

05
META-ANALYSIS Phytotherapy research (2020) PMID: 31975514 ↗
Withania somnifera (Indian ginseng) in diabetes mellitus: A systematic review and meta-analysis of scientific evidence from experimental research to clinical application.
Clinical Trial Synthesis 2020 Meta-Analysis published in Phytotherapy research; statistical significance reported at p = 0.00001 (MD -196.27). Key conclusion: somnifera treatment in DM significantly restored the altered levels of blood glucose (experimental data; mean difference, -196.27; 95% confidence interval [-220.96, -171.58]; p < .00001) glycosylated haemoglobin (HbA1c), insulin, lipid profile, serum and oxidative stress markers
View Original PubMed Abstract ↓

Withania somnifera Dunal, also known as Indian ginseng, has been in use since ancient times in the management of diabetes mellitus (DM). This systematic review and meta-analysis evaluated the efficacy/effectiveness, safety and tolerability of W. somnifera in managing DM. Literature search (published/unpublished) was performed from inception to April 2019 in guidelines recommended databases. A total of 6 in-vitro, 13 pre-clinical and 5 clinical studies were included for systematic evaluation. W. somnifera treatment in DM significantly restored the altered levels of blood glucose (experimental data; mean difference, -196.27; 95% confidence interval [-220.96, -171.58]; p < .00001) glycosylated haemoglobin (HbA1c), insulin, lipid profile, serum and oxidative stress markers with no safety concerns. The results suggest the potential role of W. somnifera in managing DM. However, the available clinical data are not considerably enough to provide novel and sufficiently robust evidence for the use of W. somnifera in managing DM. To further strength the anti-diabetic profile of W. somnifera, well-designed randomized-controlled trial(s) with a larger sample size and longer duration is warranted with evaluation of its effect primarily on blood glucose, HbA1c and insulin. Future research also needs to elucidate the molecular mechanism(s) of W. somnifera including its active principles in DM. © 2020 John Wiley & Sons, Ltd.

06
META-ANALYSIS Phytomedicine (2018) PMID: 30466985 ↗
Withania somnifera (Indian ginseng) in male infertility: An evidence-based systematic review and meta-analysis.
Clinical Trial Synthesis 2018 Meta-Analysis published in Phytomedicine; statistical significance reported at p = 0.0004 (MD 13.57). Key conclusion: CONCLUSION: Due to a small number of eligible studies, the available data, though promising, are too limited to provide novel and sufficiently robust evidence of the benefits of W.
View Original PubMed Abstract ↓

BACKGROUND: Withania somnifera Dunal, commonly known as Indian ginseng, has been in use since ancient times as anti-stress agent, aphrodisiac, for impotence and infertility treatment. PURPOSE: To evaluate the efficacy and safety of W. somnifera treatment in infertile men. STUDY DESIGN: An evidence-based systematic review and meta-analysis using Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. METHODS: Published literature was searched in PubMed/MEDLINE, EMBASE, Scopus, the Cochrane Library, and DHARA. Grey literature was assessed from the WHO International Clinical Trials Registry Platform (http://apps.who.int/trialsearch/) and the US National Institutes of Health (https://clinicaltrials.gov/). RESULTS: Four clinical trials (comprising 5 publications: observational, n = 4; randomized controlled trial [RCT], n = 1) were included in the study. As only one RCT included, meta-analysis of RCT was not performed; however, systematically reviewed data demonstrated statistical (p ≤ .002 versus baseline) increase in sperm concentration (167%), semen volume (59%), and sperm motility (57%) in oligospermic males after 90 days of W. somnifera treatment, as well, serum testosterone (17%) and luteinizing hormone (34%) levels. Meta-analysis of observational (versus pre-treatment) studies showed that W. somnifera treatment significantly improved semen parameters (semen volume: mean difference [MD], 0.28 ml; 95% confidence interval [CI], 0.12 to 0.43; p = .0004; sperm concentration: MD, 13.57 million/ml; 95% CI, 11.12 to 16.01; p < .00001; sperm motility: MD, 8.50%; 95% CI, 7.36 to 9.63; p < .00001) with 14% of pregnancy outcome success rate in normozoospermic men. Meta-analysis findings also evidenced significant improvement in serum hormonal profile, oxidative biomarkers and antioxidant vitamins in seminal plasma. No adverse effects were reported in infertile men taking W. somnifera treatment. CONCLUSION: Due to a small number of eligible studies, the available data, though promising, are too limited to provide novel and sufficiently robust evidence of the benefits of W. somnifera in male infertility. Additional RCTs of high quality with a

07
RANDOMIZED TRIAL (RCT) JMIR research protocols (2026) PMID: 41950501 ↗
Effectiveness of Ayurvedic Nutritional Supplements and Yoga Protocol in Reducing the Incidence and Severity of Acute Mountain Sickness (AYAMS Study): Study Protocol for an Open-Label Randomized Controlled Trial.
Clinical Trial Synthesis 2026 Randomized Controlled Trial (RCT) published in JMIR research protocols involving n = 830 participants. Key conclusion: OBJECTIVE: This randomized controlled trial (RCT) protocol aimed to assess the effectiveness of Ayurvedic nutritional supplements in conjunction with a yoga protocol in reducing the incidence and severity of AMS among healthy personnel stationed in the challenging high-altitude l
View Original PubMed Abstract ↓

BACKGROUND: Acute mountain sickness (AMS) poses a unique and formidable challenge to healthy personnel at high altitudes. OBJECTIVE: This randomized controlled trial (RCT) protocol aimed to assess the effectiveness of Ayurvedic nutritional supplements in conjunction with a yoga protocol in reducing the incidence and severity of AMS among healthy personnel stationed in the challenging high-altitude landscapes of the western Himalayas. METHODS: The proposed open-label, parallel-group RCT was conducted in apparently healthy individuals of any gender aged 18-50 years. The study was conducted at two distinct high-altitude stages within the western Himalayan region: stage I, situated at an elevation ranging from 9000 to 12,000 feet and stage II, spanning 12,000 to 15,000 feet. A total of 1660 participants (n=830 per stage) underwent random assignment in a 1:1 ratio to receive either the existing acclimatization schedule (AS) for high altitude (control group) or the Ayush intervention (Ayush group) in addition to the AS. The participants in the Ayush group received Ayurvedic nutritional supplements, including the Ayur-nutri kit (Ayush poshak yoga, 25 g, and Ayush cardiac care tea, 125 mL), twice daily, along with a yoga protocol (60 min daily) for 120 days. The primary outcome was the incidence of AMS, assessed using the 2018 Lake Louise Scoring System, and the proportion of participants with a Lake Louise Scoring System score of 6 or higher during the first 7 days from baseline. The secondary outcome measures included the proportion of participants with thromboembolic events; changes in coagulation and hemostasis activation markers and proinflammatory markers; and changes in self-reported negative emotional states (depression, anxiety, and stress), sleep quality, and overall quality of life (assessed through Depression Anxiety Stress Scale-21 items, Pittsburgh Sleep Quality Index, and 12-item short-form, respectively) on day 60 and day 120 from baseline. RESULTS: The study was funded in March 2023. The data collection was completed in December 2023. A total of 1660 participants were enrolled in the study. The analysis of the study data is in progress. The study outcom

08
CLINICAL STUDY Nutrition & metabolism (2025) PMID: 41204297 ↗
Impact of ashwagandha (Withania somnifera L.) supplementation on serum lipid concentrations and anthropometric parameters in adults with overweight and obesity: a double-blind, placebo-controlled pilot study.
Clinical Trial Synthesis 2025 Randomized Controlled Trial (RCT) published in Nutrition & metabolism involving n = 17 participants; statistical significance reported at p = 0.0082. Key conclusion: CONCLUSIONS: Ashwagandha supplementation improved serum lipid profiles in adults with overweight and obesity, suggesting potential lipid-lowering effects when combined with a prescribed dietary plan.
View Original PubMed Abstract ↓

BACKGROUND: Overweight and obesity are widespread in Mexico, often linked to dyslipidemia and higher cardiovascular risk. The search for safe and effective treatments has promoted interest in natural supplements such as Ashwagandha (Withania somnifera), recognized for its adaptogenic and potential lipid-lowering properties. OBJECTIVE: To assess the impact of Ashwagandha supplementation on serum lipid profiles and anthropometric parameters in Mexican adults with overweight and obesity. METHODS: A double-blind, randomized, placebo-controlled pilot clinical trial was carried out with 43 adults (n = 17 in the control group and n = 21 in the intervention group) over 40 days. Participants followed a monitored diet and received one daily capsule containing 500 mg of Ashwagandha or a placebo, in addition to a guided unrestricted dietary plan. Anthropometric and biochemical measurements were taken at baseline and after the intervention. In silico analysis was also performed to examine the binding affinity of Ashwagandha bioactive compounds to key proteins involved in lipid metabolism. RESULTS: Ashwagandha supplementation did not produce statistically significant changes in body weight, body mass index (BMI), or waist circumference (WC). However, significant reductions were observed in triglyceride and VLDL-c levels (p = 0.0082 and p = 0.0321, respectively). In silico results supported these findings, showing favorable interactions between compounds such as withanolide A and lipid metabolism targets, including AMPK, CETP, and LPL. CONCLUSIONS: Ashwagandha supplementation improved serum lipid profiles in adults with overweight and obesity, suggesting potential lipid-lowering effects when combined with a prescribed dietary plan. Also, it was possible to elucidate some metabolic pathways in which Ashwagandha composition has an influence on producing the reported effects. Further long-term studies with controlled dietary intake are needed to confirm these findings and clarify the underlying molecular mechanisms. © 2025. The Author(s).

09
CLINICAL STUDY Nutrients (2025) PMID: 41156498 ↗
Ashwagandha Does Not Enhance the Effect of High-Intensity Interval Training on Selected Energy Metabolism Parameters in Young Healthy Men.
Clinical Trial Synthesis 2025 Randomized Controlled Trial (RCT) published in Nutrients involving n = 20 participants; statistical significance reported at p = 0.05. Key conclusion: CONCLUSIONS: In young, healthy men, an 8-week HIIT programme significantly affects selected hormones related to energy metabolism of adipose (adiponectin) and muscle (irisin) tissues, but ashwagandha supplementation did not significantly affect any of the hormonal parameters anal
View Original PubMed Abstract ↓

BACKGROUND/OBJECTIVES: High-intensity interval training (HIIT) is considered an effective way in improving aerobic capacity and selected health parameters. Ashwagandha is an herb with possible health-promoting properties that may affect metabolism and performance. The aim of this study was to evaluate the effects of ashwagandha supplementation (600 mg/day) during an 8-week HIIT on body composition, lipid profile and hormone levels related to energy homeostasis in healthy young men. METHODS: The study was randomised, double-blind and placebo-controlled (Placebo group, PL, n = 20; ashwagandha, A, n = 18). HIIT was conducted on a rowing ergometer (3 times per week, 5-7 series of 1.5 min at 85-95% of maximum power, with intervals of 1.5 min at 70 W). Body composition (BIA, Tanita TBF 300P), serum lipid profile (tChol, HDL-cholesterol, LDL-cholesterol, TG) and serum levels of adiponectin, asprosin and irisin were analysed before (term 1) and after the8-week study (term 2). Both the lipid and hormonal profiles were measured in three time points: pre- and post-graded exercise test and after 24 h recovery period. RESULTS: Analysis showed no effect of training or supplementation on body composition and lipid profile (p > 0.05). In turn, the 8-week HIIT decreased resting levels of adiponectin and increased irisin levels post-exercise and after 24 h (p < 0.05). CONCLUSIONS: In young, healthy men, an 8-week HIIT programme significantly affects selected hormones related to energy metabolism of adipose (adiponectin) and muscle (irisin) tissues, but ashwagandha supplementation did not significantly affect any of the hormonal parameters analysed.

10
CLINICAL STUDY Nutrition, metabolism, and cardiovascular diseases (2025) PMID: 40883125 ↗
Lowering plasma S-Adenosylhomocysteine (SAH) in healthy adults with elevated SAH and normal homocysteine using nutritional supplementation.
Clinical Trial Synthesis 2025 Randomized Controlled Trial (RCT) published in Nutrition, metabolism, and cardiovascular diseases involving n = 40 participants. Key conclusion: CONCLUSION: This is the first demonstration of a nutritional product's effectiveness in decreasing plasma levels of SAH in otherwise healthy individuals with elevated SAH and normal Hcy.
View Original PubMed Abstract ↓

BACKGROUND AND AIMS: Elevated plasma levels of total homocysteine (Hcy) and S-Adenosylhomocysteine (SAH) are associated with increased risks of neurological and cardiovascular diseases (CVD). Whilst elevated plasma levels of Hcy can be managed through supplementation with B-group vitamins, there are no effective therapies for managing SAH in patients with elevated SAH and normal Hcy. SAH, a by-product of cellular methylation reactions, is considered a more sensitive biomarker for CVD than homocysteine (Hcy). The aim of this study was to determine if a test product containing ashwagandha extract, alpha-glycerylphosphorylcholine and creatine monohydrate, could lower plasma SAH levels in adults with elevated SAH and normal Hcy. METHODS AND RESULTS: In this prospective, randomized, single-blind, placebo-controlled clinical trial, 40 participants with elevated SAH (≥20 nmol/L) and normal Hcy (≤13 μmol/L) were randomized into two groups: 15 participants received the placebo, and 25 participants received the test product. The test product significantly lowered plasma SAH levels by approximately 12% and increased S-Adenosylmethionine (SAM): SAH ratio by approximately 26% after 12 weeks of supplementation compared to baseline. The test product was safe and well-tolerated, with no serious adverse events. No clinically relevant changes in vital signs and safety laboratory parameters were detected. CONCLUSION: This is the first demonstration of a nutritional product's effectiveness in decreasing plasma levels of SAH in otherwise healthy individuals with elevated SAH and normal Hcy. Hence, this test product offers a unique opportunity for investigating the impact of lowering plasma SAH on the risk of developing CVD and other diseases. Clincaltrial.gov registration: NCT05994794, 2023-08-16.

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