Nordic CoQ10 Ubiquinol Sport 100 mg by Nordic Naturals

Nordic CoQ10 Ubiquinol Sport provides 100 mg of Kaneka Ubiquinol per softgel and is NSF Certified for Sport, the third-party certification athletes use to confirm a supplement is free of banned substances. It suits competitive athletes (especially those subject to drug testing), endurance trainers tracking their cardiovascular and energy support, and adults over 40 whose natural CoQ10 levels drift downward with age.

Ubiquinol is the reduced, more bioavailable form of coenzyme Q10. Inside mitochondria, the cell structures that produce ATP (the body's primary energy currency), CoQ10 cycles between its oxidized and reduced forms while ferrying electrons along the electron transport chain. Ubiquinol is also the active antioxidant form, recycling vitamin E in cell membranes. Statin medications reduce the body's own CoQ10 production, which is why supplementation is common for adults on these drugs.

Take one softgel daily with a meal that contains some fat. CoQ10 is fat-soluble and absorbs poorly on an empty stomach. Morning is preferred. The manufacturer's loading approach of two to three softgels daily for the first two weeks before stepping down to one daily is reasonable for adults wanting faster repletion.

If you take prescription medications, especially anticoagulants, are pregnant or breastfeeding, or have a chronic medical condition, talk to your clinician before starting and review the warnings below.