Coenzyme Q10: Safety Assessment

Researchers published an intake level (Observed Safe Level, OSL) for coenzyme Q10 (ubiquinone), which is considered safe. In addition, an Acceptable daily intake (ADI) was published.

Scientists identified an OSL of 1,200 mg of ubiquinone per person daily.In addition, scientists published an ADI of 12 mg/kg daily.

The ADI was determined using a No Observed Adverse Effect Level (NOAEL), with no adverse effects observed from coenzyme Q10 intake, taking into account a safety factor of 100.