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    The NADefense Blog

    Learn More About Vision Wellness

    Plain-English guides on eye health, the science behind our ingredients, and how to have better conversations with your ophthalmologist.

    All AMD Blue Light Dry Eye Eye Health Eye Health Supplements Eye Pressure (IOP) Ginkgo Glaucoma GLP-1 Longevity Lutein Macular Degeneration Mitochondria NAD+ Neuroprotection nicotinamide riboside Optic Nerve research retina Visual Field Progression Yamanaka Factors
    What Nicotinamide Riboside Is Doing Inside Your Retina eye health
    May 26, 2026

    What Nicotinamide Riboside Is Doing Inside Your Retina

    You have probably heard that NR boosts NAD+ for energy and longevity. Here is what two new studies reveal about what it does specifically inside your retina.

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    NADefense

    Ophthalmologist-founded supplements designed to support long-term vision wellness through targeted cellular nutrition.

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    * These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Sight Guard is a dietary supplement. Consult your physician before starting any supplement regimen.

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