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Head-to-head evidence comparison — which supplement is right for you?
Multivitamin vs Tribulus: Multivitamin has the stronger overall evidence (6 vs 5.5/10); they're alternatives for fertility support — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Multivitamin wins 3 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Too few graded studies
Top outcomes
Verdict
Likely helps
3 of 3 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Multivitamin and Tribulus have evidence — compare verdict strength side-by-side.
1 serving daily (as directed on label, typically 1-2 tablets/capsules)
With breakfast, With lunch (if GI sensitive)
Capsule or softgel
250-750mg daily (standardized to 45-60% saponins)
With meals, Morning or divided doses
Extract standardized to 45-60% saponins (protodioscin)
and 7 more not shown
3-6 months
4-8 weeks
2-6 weeks
6-12 weeks
2-4 weeks
4-8 weeks
N/A
Effect of multivitamin-mineral supplementation versus placebo on cognitive function: results from the clinic subcohort of the COcoa Supplement and Multivitamin Outcomes Study (COSMOS) randomized clinical trial and meta-analysis of 3 cognitive studies within COSMOS
The American Journal of Clinical Nutrition (2024) · Meta analysis · n=5203
Pooled 5,203 non-overlapping participants from three cognitive substudies of the COSMOS trial of US adults aged 60 or older: COSMOS-Clinic (573), COSMOS-Mind (2,158) and COSMOS-Web (2,472).
Effects of cocoa extract and a multivitamin on cognitive function: A randomized clinical trial
Alzheimer's & Dementia (2023) · Rct · n=2262
COSMOS-Mind: 2,262 older adults (mean age 73, 60% women) randomised in a 2x2 factorial design to cocoa extract and to a commercial multivitamin-mineral, each versus placebo, for 3 years, with cognition tested by telephone.
Long-term multivitamin supplementation and cognitive function in men: a randomized trial
Annals of Internal Medicine (2013) · Rct · n=5947
5,947 male physicians aged 65 or older in the Physicians' Health Study II, randomised to a daily multivitamin or placebo, with up to 4 telephone cognitive assessments over 12 years.
Effects of Tribulus (Tribulus terrestris L.) Supplementation on Erectile Dysfunction and Testosterone Levels in Men-A Systematic Review of Clinical Trials
Nutrients (2025) · Systematic review · n=483
10 studies (9 clinical trials and 1 study without a control) with 483 men in total, aged 16 to 70.
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.
Beneficial effects of natural products on female sexual dysfunction: A systematic review and meta-analysis
Phytomedicine : international journal of phytotherapy and phytopharmacology (2021) · Meta analysis
536 studies were identified and 20 met the criteria. The abstract gives no participant total.
Multivitamin has a higher evidence score (6/10 vs 5.5/10) and wins in 3 of 3 categories.
For fertility support, Tribulus has a higher relevance score (80 vs 60).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
On Ozempic/Wegovy/Mounjaro? What actually helps — muscle preservation, GI relief, nutrient gaps (no upsell).
Safe, but no benefit if you’re not filling a gap. Who actually needs one — and who doesn’t.
Start with 2–3 foundations, add one at a time, build by goal — without wasting money.
Mostly hype unless you’re deficient — what has modest evidence vs what doesn’t, and when to see a doctor.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.