Carnosine, Cataracts, and Visual Clarity – Life Extension
Posted on June 6th, 2019


By Linda Oppenheimer

Cataracts cause about half of all cases of blindness worldwide.1,2

By age 80, more than half of all Americans will have cataracts, or will have undergone surgery to remove them.3

Researchers have been investigating two different but related forms of the nutrient carnosine to help slow the development of cataracts as well as improve visual performance of cataract-affected eyes.

A new study illustrates the ability of oral carnosine in capsule form to preserve normal structure of proteins in the lens of the eye—an action that may slow or prevent the development of vision-impairing cataracts.4

The study shows that carnosine works through several interrelated mechanisms that help protect against the underlying changes caused by aging that lead to cataracts.4

In addition, human studies have found that a derivative of carnosine, N-acetylcarnosine, when used as an eye drop, can induce improvements in visual performance of cataract-affected eyes.5,6

Many readers of this magazine have been using a high-potency carnosine supplement (500-1,000 mg/day) since we introduced it in 2000.

A number of others also use eye drops that deliver N-acetylcarnosine directly to the eye lens where cataracts occur.

Based on both established and recent science, there is now a two-part strategy of using both carnosine and N-acetylcarnosine to help reduce the risk of cataracts.

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