Coenzyme Q10 is known as an anti-aging supplement because research shows it protects the brain, is vital to heart function and strengthens the immune system. Now researchers at the Department of Ophthalmology at Columbia University say coQ10 levels naturally decline in the human retina and that these low levels may lead to macular degeneration.
CoQ10 can help preserve vision and prevent fatigue, studies suggest.
Through analysis of eye tissues from eye donors under 30 years of age and those above 80 years of age, the researchers found levels dropped significantly in the retinas of elderly people as compared to the younger samples. They conclude, "Coenzyme Q10 levels in the retina can decline by about 40% with age. This decline…may be linked to the progression of macular degeneration." Additional research is needed to assess the effects of supplementation with coenzyme Q10 on the prevention of macular degeneration and the overall protection of vision and health of the eyes.
In another study, Japanese researchers found that coQ10 reduced fatigue and boosted physical performance. In this study, 17 healthy volunteers supplemented with coenzyme Q10 for a period of 8 days at either 100 or 300 mg per day, or a placebo. The subjects underwent fatigue-inducing workload trials on a bicycle ergometer. Results showed that, compared with placebo, supplementation with 300 mg/day coenzyme Q10 led to a higher change in maximum velocity, and that the subjects’ perception of fatigue was significantly alleviated. The results of this study suggest that daily supplementation with coenzyme Q10 may reduce fatigue and improve physical performance.
Sources: Invest Ophthalmol Vis Sci, Dec 5, 2008; Nutrition, Feb 11, 2008 [Epub ahead of print]
