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.

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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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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Why Prioritizing Your Eyes Should Be Part of Your 2026 Health Resolutions
January 02, 2026

Why Prioritizing Your Eyes Should Be Part of Your 2026 Health Resolutions

A new year is the perfect time to focus on healthy aging. Learn why eye health and cellular energy deserve a place in your 2026 wellness routine and...

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Natural Ways to Support Healthy Eye Pressure Eye Pressure (IOP)
December 11, 2025

Natural Ways to Support Healthy Eye Pressure

From aerobic exercise to targeted nutrients, several habits have real research behind them when it comes to supporting healthy eye pressure. Here is the honest breakdown.

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