CoQ10 (Ubiquinol)
Coenzyme Q10 is a naturally occurring compound that plays a vital role in cellular energy production and acts as a powerful antioxidant. Ubiquinol is the active, reduced form of CoQ10 that is better absorbed than conventional CoQ10 supplements. It supports heart health, may help reduce migraine frequency, and can help counteract the natural decline in CoQ10 levels that occurs with aging.
Key Takeaways
- Ubiquinol is the active, reduced form of CoQ10 that is 2-4 times better absorbed than conventional CoQ10 (ubiquinone), making it the preferred choice for supplementation
- CoQ10 levels naturally decline with age and statin use, making supplementation particularly beneficial for adults over 50 and those taking cholesterol-lowering medications
- Research supports doses of 100-300mg daily for heart health, with studies showing 31% lower mortality in heart failure patients and potential cognitive benefits
- Generally well-tolerated with minimal side effects, though it may enhance the effects of blood pressure medications and should be monitored accordingly
- Best taken with meals containing fat for optimal absorption, and effects typically become apparent after 30 days of consistent use
How to Take
Typical Dosage
100-300mg daily of ubiquinol form
When to Take
With meals containing fat for optimal absorption, as CoQ10 is fat-soluble
Why It Matters for Ages 50+
After age 40, natural CoQ10 production begins to decline significantly, and by age 65, levels can be 50% lower than in younger adults. Adults over 50 also have reduced ability to convert standard CoQ10 to the active ubiquinol form, making ubiquinol supplementation particularly beneficial. This is especially important for those taking statin medications, which further deplete CoQ10 levels.
What to Look For
- Choose ubiquinol form over ubiquinone for superior bioavailability, especially if over age 50 when the body's ability to convert CoQ10 decreases
- Look for third-party testing certification (USP, NSF, or ConsumerLab) to verify purity and potency
- Ensure softgel capsules are stored in dark, cool conditions as CoQ10 is light and heat sensitive
- Verify the product is free from unnecessary fillers, artificial colors, and common allergens
- Consider liposomal formulations which may offer even better absorption than standard ubiquinol
Potential Interactions
Be aware of these potential interactions:
- Blood thinners (warfarin) - may reduce effectiveness of anticoagulation
- Chemotherapy drugs - may interfere with treatment effectiveness
- Antihypertensive medications (blood pressure medications) - may enhance blood pressure lowering effects
- Antidepressants - potential interaction with certain classes
- Statin medications - while often taken together to counteract statin-induced CoQ10 depletion, monitoring recommended
Who Should Avoid This Supplement
- Individuals with very low blood pressure (hypotension) as CoQ10 may further lower blood pressure
- Cancer patients undergoing chemotherapy should consult oncologists as CoQ10 may interfere with certain treatments
- People with bleeding disorders or scheduled for surgery should avoid due to potential effects on blood clotting
- Pregnant and breastfeeding women due to insufficient safety data in these populations
Recommended by Experts

“For energy support”

“Takes for mitochondrial health and heart health”

“Takes ubiquinol form for energy support”

“Included in his longevity protocol”
Frequently Asked Questions
Most research supports 100-200mg daily of ubiquinol for general health maintenance, with higher doses (300mg) used for specific conditions like heart failure. Start with 100mg daily and consult your healthcare provider for personalized dosing.
Yes, CoQ10 should be taken with meals containing healthy fats for optimal absorption. Taking it with breakfast or lunch is ideal, as evening doses may cause mild insomnia in some people.
Blood levels typically increase significantly after 30 days of consistent supplementation. However, noticeable benefits for energy, heart health, or other symptoms may take 6-12 weeks of regular use.
While CoQ10 is found in organ meats, fatty fish, and whole grains, dietary sources provide only 3-10mg daily. Supplementation is necessary to achieve therapeutic levels, especially as absorption from food decreases with age.
CoQ10 is generally well-tolerated, but some people may experience mild digestive upset, headaches, or dizziness. These effects are usually dose-dependent and can be minimized by taking smaller doses with meals.
Yes, CoQ10 has an excellent long-term safety profile with no known toxicity levels. Many people take it daily for years, and it's often recommended as a lifelong supplement for those over 50 or taking statins.
