There are a number of other health conditions where CoQ10 supplementation has been found to be beneficial. Diabetes mellitus is one such example. Data show that CoQ10 may potentiate the effect of insulin by augmenting receptor sensitivity. Therapeutic value of CoQ10 has also been reported in certain cancers such as the breast, colon, lung and prostate.

CoQ10 supplements are popular with physical fitness enthusiasts and athletes. There are reports that it enhances stamina, and speeds muscle recovery following strenuous exercise. Both the coenzyme function in the energy production pathway and the antioxidant function appear to be responsible for the reported effects of CoQ10.