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Coenzyme Q10: study protocols

11 study groups say how much Coenzyme Q10 participants took a day. These are the doses the studies gave. They are not a recommendation.

Coenzyme Q10: what the research found →

Dose per serving from products

4,865 products in our catalogue print how much Coenzyme Q10 a serving holds.

Most common: 50 mg to 100 mg, 35% of 4,865 products.

Dose per servingProducts
2.5 mg or less
158
2.5 mg to 5 mg
158
5 mg to 10 mg
294
10 mg to 25 mg
362
25 mg to 50 mg
808
50 mg to 100 mg
1,686
100 mg to 250 mg
951
250 mg to 500 mg
359
over 500 mg
89

Dose per serving from research

10 study groups in 10 studies say how much Coenzyme Q10 participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 100 mg to 250 mg, 80% of 10 study groups.

Daily doseStudy groups
100 mg to 250 mg
8
250 mg to 500 mg
2

Commonly used together

8 of 11 study groups took Coenzyme Q10 with something else. Shown: what 3 or more different studies gave.

What was given together, not what works together.

Taken withStudy groups
Selenium
8

11 study groups

Study
Reduced Cardiovascular Mortality 10 Years after Supplementation with Selenium and Coenzyme Q10 for Four Years: Follow-Up Results of a Prospective Randomized Double-Blind Placebo-Controlled Trial in Elderly Citizens
2015 · Active treatment · Elderly Swedish community-dwelling adults; mean age 78 years; men and women; described as healthy, with low baseline selenium status
200 mg4 years221
Still reduced cardiovascular mortality 12 years after supplementation with selenium and coenzyme Q10 for four years: A validation of previous 10-year follow-up results of a prospective randomized double-blind placebo-controlled trial in elderly
2018 · Active treatment group · Elderly healthy Swedish community-dwelling adults; mean age 78 years, men and women
200 mg1461 days221
Supplementation with Selenium and Coenzyme Q10 Reduces Cardiovascular Mortality in Elderly with Low Selenium Status. A Secondary Analysis of a Randomised Clinical Trial
2016 · active treatment group · Adults aged 70–80 years in Sweden, without a stated requirement for a diagnosed condition; participants were analysed in strata by baseline serum selenium concentration.
200 mg4 years219
The effect of coenzyme Q10 on morbidity and mortality in chronic heart failure: results from Q-SYMBIO: a randomized double-blind trial
2014 · CoQ10 group · Adults with moderate to severe chronic heart failure
300 mg2 years—
Effect of coenzyme Q10 therapy in patients with congestive heart failure: a long-term multicenter randomized study
1993 · coenzyme Q10 · Adults aged 26–89 years with chronic congestive heart failure, NYHA functional class III or IV, receiving conventional heart-failure treatment
2 mg/kg1 year319
Improved cardiovascular health by supplementation with selenium and coenzyme Q10: applying structural equation modelling (SEM) to clinical outcomes and biomarkers to explore underlying mechanisms in a prospective randomized double-blind placebo-controlled intervention project in Sweden
2022 · Active treatment group · Adults aged 70–88 years with low selenium status and age-related low coenzyme Q10 levels
200 mg4 years221
The effect of ubiquinone in diabetic polyneuropathy: a randomized double-blind placebo-controlled study
2012 · ubiquinone · Adults with type 2 diabetes and diabetic polyneuropathy; mean age 56 years
400 mg12 weeks24
Selenoprotein P increases upon selenium and coenzyme Q(10) supplementation and is associated with telomere length, quality of life and reduced inflammation and mortality
2024 · selenium yeast and coenzyme Q 10 supplementation · elderly community-living participants with low selenium status
200 mg4 years—
Levels of sP-selectin and hs-CRP Decrease with Dietary Intervention with Selenium and Coenzyme Q10 Combined: A Secondary Analysis of a Randomized Clinical Trial
2015 · Active treatment · Adults aged 70–88 years from an elderly Swedish community population; no condition required for inclusion
200 mg1461 days221
Effects of an Intervention with Selenium and Coenzyme Q(10) on Five Selected Age-Related Biomarkers in Elderly Swedes Low in Selenium: Results That Point to an Anti-Ageing Effect-A Sub-Analysis of a Previous Prospective Double-Blind Placebo-Controlled Randomised Clinical Trial
2023 · Active treatment · Elderly community-dwelling Swedes with low selenium status; age range not stated at intervention
200 mg1461 days220