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.

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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Mitochondria Are Trending. Here Is What That Means for Your Eyes. Mitochondria
April 07, 2026

Mitochondria Are Trending. Here Is What That Means for Your Eyes.

Mitochondria are everywhere in wellness right now. But your retina depends on these tiny power generators more than almost any other tissue. Here is why eye health belongs...

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What the AAO's New NAD+ Statement Means for You Glaucoma
March 23, 2026

What the AAO's New NAD+ Statement Means for You

Two of America's top eye organizations just acknowledged that NAD+ precursors show promise for glaucoma. Here's what you need to know.

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Eye Supplement Safety Dosing: Questions to Ask Your Eye Doctor Eye Health Supplements
March 16, 2026

Eye Supplement Safety Dosing: Questions to Ask Your Eye Doctor

Thinking about adding an eye supplement to your routine? This guide covers what supplements can and cannot do, why dosing matters, and the key questions to ask your...

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NR vs. Nicotinamide: What Is the Difference for Eye Health? Eye Health Supplements
March 12, 2026

NR vs. Nicotinamide: What Is the Difference for Eye Health?

Both molecules raise NAD+ levels, but the way they get there matters. Here is what the research says about NR vs. nicotinamide for eye health.

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The 5 Ingredients Your Eyes Need As You Age (And What the Research Actually Shows) Eye Health Supplements
March 02, 2026

The 5 Ingredients Your Eyes Need As You Age (And What the Research Actually Shows)

Walk into any pharmacy and the eye supplement aisle will overwhelm you. How do you sort through the marketing noise? By looking at the actual evidence. We provide...

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Why Mitochondrial Health Is the Key to Preventing Age-Related Eye Disease Eye Health
February 23, 2026

Why Mitochondrial Health Is the Key to Preventing Age-Related Eye Disease

Your retina is one of the most energy-hungry tissues in your body. While most eye health advice focuses on sunglasses and surface-level vitamins, the real battle against age-related...

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NAD+ and Glaucoma: What New Research Reveals About Protecting Your Optic Nerve Eye Health
February 11, 2026

NAD+ and Glaucoma: What New Research Reveals About Protecting Your Optic Nerve

Lowering eye pressure is the standard treatment for glaucoma, but for many, it isn't enough. Emerging research suggests that a decline in NAD+, a vital coenzyme for cellular...

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