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Head-to-head evidence comparison — which supplement is right for you?
CoQ10 vs Prenatal Multivitamin: CoQ10 has the stronger overall evidence (8 vs 7/10); 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.
CoQ10 wins 3 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
Too few graded studies
Top outcomes
100-300mg daily
With fatty meal
Ubiquinol (reduced form)
1 serving daily as labelled. The verified folic acid evidence rests on 400-800 mcg daily started before conception
With meals
A prenatal containing 400-800 mcg folic acid, started at least one month before conception
and 4 more not shown
4-12 weeks
8-12 weeks
4-8 weeks
2-8 weeks
Best started before conception
Across pregnancy
Across pregnancy
n/a
Efficacy and Safety of Coenzyme Q10 Supplementation in the Treatment of Polycystic Ovary Syndrome: a Systematic Review and Meta-analysis
Reproductive sciences (Thousand Oaks, Calif.) (2023) · Meta analysis · n=1021
Meta-analysis of 9 randomised trials with 1,021 women with polycystic ovary syndrome.
Coenzyme Q10 for heart failure
The Cochrane database of systematic reviews (2021) · Meta analysis · n=1573
Coenzyme Q10 probably reduces the risk of all-cause mortality more than control (RR 0.58, 95% CI 0.35 to 0.95; 1 study, 420 participants; number needed to treat for an additional beneficial outcome (NNTB) 13.3; moderate-quality evidence).
Antioxidants for female subfertility
The Cochrane database of systematic reviews (2017) · Meta analysis · n=6510
This suggests that among subfertile women with an expected clinical pregnancy rate of 22%, the rate among women using antioxidants would be between 27% and 33%.
Effects and safety of periconceptional oral folate supplementation for preventing birth defects.
Cochrane Database Syst Rev (2015) · Meta analysis
Neural tube defects: RR 0.31 (95% CI 0.17-0.58) across 5 studies, 6,708 births — HIGH quality evidence
Prevention of neural tube defects: results of the Medical Research Council Vitamin Study. MRC Vitamin Study Research Group.
Lancet (1991) · Rct · n=1817
27 neural tube defects total: 6 in folic acid arms vs 21 in non-folic-acid arms — 72% protective effect, RR 0.28 (95% CI 0.12-0.71)
Prevention of the first occurrence of neural-tube defects by periconceptional vitamin supplementation.
N Engl J Med (1992) · Rct · n=4753
The comparator was NOT placebo — it was a trace-element supplement (copper, manganese, zinc and a very low dose of vitamin C)
CoQ10 has a higher evidence score (8/10 vs 7/10) and wins in 3 of 3 categories.
For fertility support, CoQ10 has a higher relevance score (90 vs 20).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
The honest tier list — proven staples vs situational vs mostly marketing. The hub the other guides feed into.
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Magnesium, riboflavin, CoQ10 — the supplements with real migraine-prevention evidence (and doses).
CoQ10, zinc, selenium, carnitine modestly help sperm parameters — but live-birth evidence is weak.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.