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.

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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Dry AMD Had No Treatment. That May Be Changing. AMD
April 03, 2026

Dry AMD Had No Treatment. That May Be Changing.

For the first time, a stem cell therapy has shown real vision improvement in dry macular degeneration patients. Here is what the latest trials found.

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Can We Reverse Aging in the Eye? The First Human Trial Is Underway Yamanaka Factors
April 01, 2026

Can We Reverse Aging in the Eye? The First Human Trial Is Underway

The first human trial of cellular rejuvenation therapy for the eye just started recruiting. Here is what it means for the future of vision.

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Your Gut Bacteria May Be Affecting Your Vision Eye Health
March 25, 2026

Your Gut Bacteria May Be Affecting Your Vision

Researchers are uncovering a surprising connection between the bacteria in your gut and the health of your eyes. Here is what the science says so far.

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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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Can GLP-1 Drugs Like Ozempic Protect Your Optic Nerve? Eye Health
March 20, 2026

Can GLP-1 Drugs Like Ozempic Protect Your Optic Nerve?

Weight loss drugs are everywhere. But emerging research suggests GLP-1 drugs like semaglutide and liraglutide might do more than slim your waistline: they could protect the nerve cells...

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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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How to Protect Your Vision After 45: A Science-Based Supplement Guide Eye Health
March 09, 2026

How to Protect Your Vision After 45: A Science-Based Supplement Guide

As you reach your mid-40s, your eyes undergo changes that go beyond needing reading glasses. While presbyopia is common, more serious conditions like macular degeneration and glaucoma can...

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