CoQ 10: some dosing recommendations

The University of Maryland Medical Center’s Complementary Medicine website provides this guidance on dosage for CoQ 10 (Coenzyme Q 10, sometimes known as ubiquinone):

Note: these recommendations apply to Adults; also remember that CoQ10 is fat-soluble and generally best absorbed if taken when eating the fattiest meal of the day.



The general recommended dose for CoQ10 supplementation is 30 to 60 mg daily. Higher doses have been used in studies and may be recommended for the following conditions:

Congestive heart failure: 50 to 150 mg a day
High blood pressure: 50 to 150 mg a day

Heart attack: 120 mg a day for 28 days after the heart attack
Breast cancer: 400 mg per day for potential prevention and treatment

The following summaries from the UMMC website may also be useful in deciding whether CoQ 10 supplementation should be considered. Please remember that the conditions described are both serious and complex, and it is thus very important that any supplement use be discussed with your doctor.



Heart Disease

Researchers believe that the beneficial effect of CoQ10 in the prevention and treatment of heart disease is due to its ability to improve energy production in cells, inhibit blood clot formation, and act as an antioxidant. One important study, for example, found that people who received daily CoQ10 supplements within 3 days of a heart attack were significantly less likely to experience subsequent heart attacks and chest pain. In addition, these same patients were less likely to die of heart disease than those who did not receive the supplements.

Breast Cancer

Studies of women with breast cancer suggest that CoQ10 supplements (in addition to conventional treatment and a nutritional regimen including other antioxidants and essential fatty acids) may shrink tumors, reduce pain associated with the condition, and cause partial remission in some individuals. It is important to recognize that the beneficial effects these women experienced cannot be attributed to CoQ10 alone. Additional antioxidants used in these studies include vitamins C, E, and selenium

See also NYBC’s discussions of CoQ 10 – 100mg and CoQ 10 – 30mg.

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