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Head-to-head evidence comparison — which supplement is right for you?
CoQ10 vs Glucomannan: CoQ10 has the stronger overall evidence (8 vs 6.5/10); they're alternatives for boost daily energy — 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
Likely helps
7 of 8 studies with measurable effects showed benefit.
Top outcomes
100-300mg daily
With fatty meal
Ubiquinol (reduced form)
1g three times daily before meals (3g total)
30-60 minutes before meals, With 1-2 glasses of water, Before largest meals for weight loss
Capsules (safest)
4-12 weeks
8-12 weeks
4-8 weeks
2-8 weeks
30-60 minutes
4-8 weeks
4-8 weeks
If improperly taken
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%.
Effect of glucomannan on plasma lipid and glucose concentrations, body weight, and blood pressure: systematic review and meta-analysis
The American journal of clinical nutrition (2008) · Meta analysis · n=531
Meta-analysis of 14 randomised controlled trials with 531 participants.
The Impact of Glucomannan, Inulin, and Psyllium Supplementation (Soloways(TM)) on Weight Loss in Adults with FTO, LEP, LEPR, and MC4R Polymorphisms: A Randomized, Double-Blind, Placebo-Controlled Trial
Nutrients (2024) · Rct · n=112
The experimental group showed significant reductions in body weight (treatment difference: -4.9%; 95% CI: -6.9% to -2.9%; p < 0.01) and BMI (treatment difference: -1.4 kg/m2; 95% CI: -1.7 to -1.2; p < 0.01) compared to placebo.
Comparative effects of nutraceuticals on body weight in adults with overweight or obesity: A systematic review and network meta-analysis of 111 randomized clinical trials
Pharmacological research (2023) · Meta analysis · n=6171
We conducted random-effects network meta-analysis with a Frequentist framework to estimate mean difference [MD] and 95% confidence interval [CI] of the effect of nutraceuticals on weight loss.
Two trials of glucomannan on its own report both a dose and a weight outcome. In a single-blind, placebo-controlled crossover of 20 adults with type 2 diabetes, 3 g a day for 4 weeks lowered BMI, a secondary result (PMID 18041436). In a randomised placebo-controlled trial of 53 overweight or moderately obese adults, 1.33 g before each of three meals (about 4 g a day) for 8 weeks did not change weight compared with placebo, and gastrointestinal symptoms, liver enzymes and creatinine did not differ from placebo (PMID 24490058). The curve stays flat at 4 g for that reason. No trial compared doses. The weight meta-analyses cited here do not state a dose, so they are not plotted.
AI-estimated from published studies. Interpret as directional guidance.
CoQ10 has a higher evidence score (8/10 vs 6.5/10) and wins in 3 of 3 categories.
For boost daily energy, Glucomannan has a higher relevance score (80 vs 75).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
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The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.