Tested and True – Coenzyme Q10 (CoQ-10)

Supplement image courtesy of worradmu/FreeDigitalPhotos.net

Coenzyme Q10 (CoQ-10), also known as ubiquinone, is a naturally occurring anti-oxidant compound and is used for energy production within cells. It’s manufactured in the heart, liver, kidney and pancreas. The body normally produces sufficient CoQ-10, although some medications, namely cholesterol-lowering statins, (such as Lipitor), beta-blockers, and anti-depressants can reduce CoQ-10 levels in the body.


Research shows that CoQ-10 levels in the body may decline with age and heart disease. Only small amounts of CoQ-10 are available from food, mainly beef and chicken. Consequently, dietary supplements are the most common way to increase the body’s CoQ-10 levels, particularly for vegetarians. It’s often regarded as a tremendous anti-oxidant, which means it helps mitigate the detrimental effects of free radical damage on a cellular level.

Coenzyme Q-10 (CoQ-10): Claims and Purported Use

Used to treat or possibly prevent many disorders, including heart disease, hypertension (high blood pressure), AIDS, asthma, Parkinson’s and Huntington’s disease, certain cancers, lung disease, gum disease, chronic fatigue syndrome, migraines, and allergies.  CoQ-10 is also said to improve memory, boost immunity and energy, enhances exercise performance, and combats aging.  It is also used to offset the detrimental side effects associated with cholesterol-lowering statin medications.  The following products listed below are tested and true.


 Carlson CoQ10

Carlson - Co-Q10 100mg, softgels - 60 ea

Life Extension Super-Absorbable CoQ10

Life Extension - Super Ubiquinol CoQ10, 100mg, Softgels - 60 ea


Nature Made CoQ10

Nature Made - CoQ10, 200mg, Liquid Softgels - 40 ea


New Chapter CoQ10+ Food Complex

New Chapter Organics - CoQ10+ Food Complex, Vcaps - 60 ea


NOW Foods - CoQ10, 100mg, Softgels - 50 ea

Selected Potential Side Effects

Coenzyme Q10 (CoQ-10) is generally regarded as safe when taken in appropriate amounts, yet it is still advised to consult with your physician prior to taking any dietary supplement.  Some adults may experience gastrointestinal side effects or nausea.

Selected Drug Interactions

Adults taking blood thinners or with diabetes are strongly advised to consult with a physician prior to taking Coenzyme Q10 (CoQ-10) as it may interact with certain medications.  In adddition, CoQ-10 may lower blood pressure and it is advised to be discontinued at least two weeks prior to a surgery.

Suggested Dosage

No RDA or UL has been established for CoQ-10 and the suggested dosage recommendations vary greatly.  For example, those with congestive heart failure are advised to take 100-200mg per day, but some doctors recommend up to 600 mg per day.

For migraine sufferers, 300mg per day might be effective to minimize number of migraines, but not severity.

Other recommendations include:

Parkinson’s Disease, 300-1200 mg per day

Hypertension, 120-200 mg per day

Angina,150 mg per day

For reducing occurrence of heart attack after having one, 120 mg per day.

Since improvement in symptoms may take up to a month, it is advised not to stop in the middle.  Instead, a tapering off is recommended.

Reference Guide for Tested and True Dietary Supplements

Tested and True: Fish Oil

Tested and True: Krill Oil

Tested and True: Multivitamins

Tested and True: Vitamin D

Tested and True: Coenzyme Q10 (CoQ-10)

Tested and True: Glucosamine and Chondroitin

Tested and True: Probiotics

Tested and True: Muscle Enhancers – Creatine

Tested and True: Muscle Enhancers – Branched Chain Amino Acids (BCAAs)

Tested and True: Nutrition Bars

Tested and True: Nutrition Drinks & Powders

Tested and True: Weight Loss Accelerators and Appetite Controllers

Tested and True: Mood Booster SAM-e

Tested and True: Mood Booster St. Johns’ Wort

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*reference: Consumer Reports Health


About Dave Barnas, M.S., CES, NASM-CPT

Dave is the true health guy. He is the founder and owner of True Health Unlimited, LLC, a personal health and fitness company in Tolland, CT & Wellness Writers, a subscription wellness newsletter service that incorporates live & virtual wellness workshops for companies across New England. Dave earned both a Bachelor's (1998) and Master's Degree (2000) in Nutritional Science from the University of Connecticut, and also holds certifications as a National Strength and Conditioning Association Certified Personal Trainer, National Academy of Sports Medicine Certified Personal Trainer and Corrective Exercise Specialist, Aerobics and Fitness Association of America Group Instructor, and Nutrition Specialist. He's also the lead author for four published works. Dave has over 20 years of combined experience in nutrition counseling, dietary supplement advising, personal training, corrective exercise training, health coaching and public speaking. In addition, he's spent over 25 years studying spirituality, meditation, and personal growth strategies. Dave's clients are all ages: youth, college championship level athletes, folks in their retired years, and everywhere in between. He's worked with three of the nation's leading physicians as a dietary supplement advisor and been a guest lecturer at Harvard University, Yale University, UConn, St. Joseph College and various church groups, health clubs, and high schools. In 2013, he was invited to Whole Foods Market to share his Real Food Therapy Guide. And in 2015, Dave's funny "Snowga" (yoga in the snow) video caught the attention of The National Weather Channel, who aired it to shake off cabin fever and bring laughter. In 2016, Dave & Hollie (his wife) founded Wellness Writers and deliver evidence-based Wellness E-newsletters to spread a message of health and happiness to various businesses throughout the US. Dave currently serves as a personal trainer in Tolland as well as a wellness coach and writer for several businesses, gyms and wellness facilities throughout the US.

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