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Head-to-head evidence comparison — which supplement is right for you?
B-Complex wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Probably helps
5 of 8 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
5 of 5 studies with measurable effects showed benefit.
Top outcomes
1 capsule daily (per label)
Morning with breakfast
Methylated B-complex (methylcobalamin, methylfolate)
500-1000mg root extract, 1-2x daily
With meals, Morning and evening
Root extract standardized to saponins
2-4 weeks
4-8 weeks
Immediate
4-12 weeks
4-8 weeks
1-2 weeks
Dosage exploration of combined B-vitamin supplementation in stroke prevention: a meta-analysis and systematic review
The American journal of clinical nutrition (2024) · Meta analysis · n=76664
In areas without and with partial folic acid fortification, combined B-vitamin supplementation significantly reduced the risk of stroke by 34% [RR: 0.66; 95% confidence interval (CI): 0.50, 0.86] and 11% (RR: 0.89; 95% CI: 0.79, 1.00), respectively.
A Comparative Study Evaluating the Effectiveness of Folate-Based B Vitamin Intervention on Cognitive Function of Older Adults under Mandatory Folic Acid Fortification Policy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Nutrients (2024) · Meta analysis · n=42768
The meta-analysis on the effects of folate-based B vitamin supplementation on cognitive function showed a significant overall impact (Z = 3.84; p = 0.0001; SMD, 0.18; 95% CI, 0.09, 0.28).
A Systematic Review and Meta-Analysis of B Vitamin Supplementation on Depressive Symptoms, Anxiety, and Stress: Effects on Healthy and 'At-Risk' Individuals
Nutrients (2019) · Meta analysis · n=2015
Regarding individual facets of mood, B vitamin supplementation benefited stress (n = 958, SMD = 0.23, 95% CI = 0.02, 0.45, p = 0.03).
Oral galactagogues (natural therapies or drugs) for increasing breast milk production in mothers of non-hospitalised term infants
The Cochrane database of systematic reviews (2020) · Meta analysis · n=20
Only one study (metoclopramide) reported on the outcome of infant weight, finding little or no difference (mean difference (MD) 23.0 grams, 95% confidence interval (CI) -47.71 to 93.71; 1 study, 20 participants; low-certainty evidence).
Modulation of Various Pharmacological Pathways by Asparagus Saponins: Special Emphasis on Shatavarin-IV
Chemistry & biodiversity (2026) · Systematic review
Shatavarin-IV is regarded as the most important steroidal saponin responsible for most of the pharmacological effects of Shatavari.
Shatavari (Asparagus racemosus Willd) root extract for postpartum lactation: A randomised, double-blind, placebo-controlled study
Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology (2025) · Rct · n=113
Maternal satisfaction with lactation was higher in the SHT group (52.63% vs. 25.00%, p = 0.008).
Multiple meta-analyses show small but statistically significant benefits for cognitive function in older adults and stroke prevention populations. Effect sizes are modest (SMD ~0.15-0.18). Benefits may be more pronounced in B-vitamin deficient populations.
Based on single RCT (n=113) showing improved maternal satisfaction (52.63% vs 25%). Meta-analysis notes limitations in galactagogue studies including small sample sizes and poor blinding methods.
AI-estimated from published studies. Interpret as directional guidance.
B-Complex has a higher evidence score (9/10 vs 7.5/10) and wins in 2 of 3 categories.
For estrogen & progesterone balance, B-Complex has a higher relevance score (85 vs 78).
No known interactions between B-Complex and Shatavari have been documented in our database. However, always consult a healthcare provider before combining supplements.