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What Is the Proper Dosage of CoQ10 for Individuals Over the Age of 40?

author image Nina K.
Nina K. is a Los Angeles-based journalist who has been published by,, Healthy Living Magazine, Organic Authority and numerous other print and web publications. She has a philosophy degree from the University of Colorado and a journalism certificate from UCLA.
What Is the Proper Dosage of CoQ10 for Individuals Over the Age of 40?
Bottle of CoQ10 pills spilling out on table

CoQ10, or coenzyme Q10, is an antioxidant that fights free radicals, which attack the cells in your body. Although CoQ10 supplements are usually considered safe, large doses may cause stomach upset, according to the University of Maryland Medical Center. UMMC also reports that this substance lowers blood sugar, which may affect diabetics. The proper dosage for people over 40 is the same as the dosage for all adults older than 19 years: 30 to 200 milligrams per day. Consult your doctor before taking CoQ10 supplements.

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You Can Get CoQ10 From Food

Most people can get all of the CoQ10 they need through a healthy, balanced diet. Spinach, peanuts and oily fish such as salmon and mackerel are particularly good sources, and your body also naturally produces CoQ10. Although small trials show that supplements may help treat cardiovascular disease, the American Cancer Society warns that more research is needed to confirm any benefits -- plus, supplements may reduce the effectiveness of some cancer treatments.

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