Ingredient guide
Coenzyme Q10 (ubiquinol): evidence, dose and safety
Coenzyme Q10 is a compound the body makes and that is found in meat and fish. Ubiquinol is its reduced form; ubiquinone is the oxidised form.
At a glance
- Strongest evidence
- C Limited
- Dose in our plans
- 200 mg a day for adults
- Adult upper limit
- 300 mg a day from food and supplements together
- Safety checks
- 0 situations and 1 medicine or supplement interaction, checked against your answers in every plan
- Reviewed
- Atrum Labs clinical team (MD, PhD), November 2026
What the research looked at
Each line is one body of research, graded A (strong) to D (weak). How we grade evidence. What each study measured is explained in your personal plan.
| Grade | Who was studied | References |
|---|---|---|
| C | Statin users with muscle symptoms |
|
How much
- Our plans usually use 200 mg a day for adults. The exact dose depends on your lab results, age and medicines.
- Adult upper limit: 300 mg a day from food and supplements together. Source: Product ceiling; observed safe level is 1200 mg a day (Hathcock JN & Shao A, Regul Toxicol Pharmacol 2006).
- Children's doses are set by age, and some ingredients are for adults only.
Medicines and other supplements
- A clinician checks first. CoQ10 is structurally similar to vitamin K and may reduce warfarin effect.
Your plan is checked against every medicine you tell us about. If you take a medicine, ask your pharmacist or doctor before starting a new supplement.
Products with Coenzyme Q10 (ubiquinol)
Written and reviewed by the Atrum Labs clinical team (physician-scientists, MD, PhD) from our clinical knowledge base, version 0.2.0-draft. This page is general information, not medical advice. Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle.
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