Loading…
We use essential cookies (authentication, your saved goals/stack) by default. With your permission we'll also enable privacy-respecting analytics (Vercel Web Analytics, anonymous load-time metrics) and error-replay diagnostics (Sentry — DOM snapshots only when an error fires) so we can fix bugs faster. Learn more
Head-to-head evidence comparison — which supplement is right for you?
Vitamin B12 wins 1 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
9 of 10 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
12 of 17 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both Panax Ginseng and Vitamin B12 have evidence — compare verdict strength side-by-side.
200-400mg standardized extract
Morning or early afternoon, With or without food
Standardized extract capsules
500-1000mcg daily for maintenance; higher for deficiency
Morning (may be energizing), With or without food
Methylcobalamin (sublingual)
2-4 weeks
4-8 weeks
If taken in evening
2-4 weeks
4-8 weeks
Weeks to months
Integrative Medicine for Relief of Nausea and Vomiting in the Treatment of Colorectal Cancer Using Oxaliplatin-Based Chemotherapy: A Systematic Review and Meta-Analysis
Phytotherapy research : PTR (2016) · Meta analysis · n=1843
The oxaliplatin plus TM groups showed significantly reduced CINV (risk ratio 0.65 [0.59, 0.71], I(2) = 28%) compared with oxaliplatin controls, with or without the addition of conventional anti-emetics.
Dietary Supplements for Erectile Dysfunction: Analysis of Marketed Products, Systematic Review, Meta-Analysis and Rational Use
Nutrients (2023) · Meta analysis
Based on the scoring system, 2 (8%) supplements matched with the cluster of higher expected efficacy, 3 (12%) with the lower efficacy cluster and 20 (80%) matched with the criterion of no expected efficacy.
Exploratory Systematic Review and Meta-Analysis of Panax Genus Plant Ingestion Evaluation in Exercise Endurance
Nutrients (2022) · Meta analysis
We found that ingestion of PGPs or ginsenosides significantly improved exercise endurance (SMD [95% CI]: 0.58 [0.22-0.95], I2 = 0%).
Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis
Irish journal of medical science (2024) · Meta analysis · n=4275
Regarding the hemoglobin level, the pooled effect sizes showed no difference between all routes of administration that could reach statistical significance.
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.
Vitamin Status in Patients with Phenylketonuria: A Systematic Review and Meta-Analysis
International journal of molecular sciences (2024) · Meta analysis · n=770
The effect sizes were expressed as standardised mean differences.
Based on meta-analysis showing SMD 0.58 [0.22-0.95] with low heterogeneity. Effect attributed to ginsenoside Rg1 and PGPs extract. Conservative effectiveness estimates given limited dose-response data.
AI-estimated from published studies. Interpret as directional guidance.
Vitamin B12 has a higher evidence score (9/10 vs 9/10) and wins in 1 of 3 categories.
For boost daily energy, Vitamin B12 has a higher relevance score (85 vs 75).
No known interactions between Panax Ginseng and Vitamin B12 have been documented in our database. However, always consult a healthcare provider before combining supplements.