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Head-to-head evidence comparison — which supplement is right for you?
Ashwagandha wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
14 of 14 studies with measurable effects showed benefit.
Top outcomes
Verdict
Probably helps
2 of 3 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Ashwagandha and Tongkat Ali have evidence — compare verdict strength side-by-side.
300-600mg daily (standardized extract)
Morning for daytime stress, Evening for sleep support
KSM-66 or Sensoril standardized extract
200-400mg standardized extract
Morning, With or without food
Standardized root extract (100:1 or 200:1)
2-4 weeks
2-4 weeks
2-4 weeks
First week
4-12 weeks
2-4 weeks
2-4 weeks
Effects of Ashwagandha (Withania Somnifera) on stress and anxiety: A systematic review and meta-analysis
Explore (NY) (2024) · Meta analysis · n=873
Significant effect on the Perceived Stress Scale (PSS) (MD = -4.72, 95 % CI = [-8.45 to -0.99]).
Effects of Withania somnifera Extract in Chronically Stressed Adults: A Randomized Controlled Trial
Nutrients (2024) · Rct · n=131
Our findings demonstrate the stress-reduction capabilities of this well-characterized aqueous extract of WS (root and leaf) at the low dose of 125 mg/day, in a dose-dependent manner, via the modulation of the HPA axis.
Plant-derived nootropics and human cognition: A systematic review
Critical reviews in food science and nutrition (2023) · Systematic review
Bacopa monnieri improves language, learning and memory.
Immunomodulation in Middle-Aged Humans Via the Ingestion of Physta® Standardized Root Water Extract of Eurycoma longifolia Jack--A Randomized, Double-Blind, Placebo-Controlled, Parallel Study
Phytotherapy research : PTR (2016) · Rct · n=126
The numbers of total, naïve, and CD4(+) T cells were also higher in the TA group than those in P group (p < 0.05).
[Literature research and discussion on properties of a new oversea-introduced traditional Chinese medicine Malaysian ginseng(Tongkat Ali)]
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica (2024) · Systematic review
Tongkat Ali has the main functions of tonifying kidney and replenishing essence, invigorating spleen and replenishing Qi, and soothing liver and relieving depression.
Effect of Eurycoma longifolia standardised aqueous root extract-Physta® on testosterone levels and quality of life in ageing male subjects: a randomised, double-blind, placebo-controlled multicentre study
Food & Nutrition Research (2021) · Rct · n=105
Significant increase in total testosterone at week 12 (Physta 100 mg) and at weeks 4, 8 and 12 (Physta 200 mg) versus placebo.
Based on meta-analysis showing significant HAM-A score reduction (p=0.0007) and RCT evidence at 125mg dose. High heterogeneity (I2=98%) in pooled analysis suggests variable response. Extract standardization affects bioavailability.
Based on meta-analysis showing significant testosterone elevation and multiple RCTs. Effects varied between healthy volunteers and hypogonadal men. Studies primarily used standardized water extracts.
AI-estimated from published studies. Interpret as directional guidance.
Ashwagandha has a higher evidence score (7.5/10 vs 6/10) and wins in 2 of 3 categories.
For reduce anxiety & stress, Ashwagandha has a higher relevance score (95 vs 60).
No known interactions between Ashwagandha and Tongkat Ali have been documented in our database. However, always consult a healthcare provider before combining supplements.