N-Acetyl Cysteine (NAC) is a powerful antioxidant and precursor to glutathione, which is one of the body’s most important antioxidants. A study conducted by researchers at Johns Hopkins University School of Medicine in the United States provides evidence of NAC’s effectiveness in promoting eyesight and delaying macular degeneration. The study involved 1,006 participants who were followed for a period of five years.
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