Vitamin B3 shows protective effects against glaucoma in new study

Research suggests a potential role for the vitamin in supporting eye health, though further investigation is needed to understand its clinical application.

Published 16 July 2026 · Topics: research, eye health, nutrition

A new study has identified protective effects of vitamin B3 against glaucoma, a group of eye diseases that gradually damage the optic nerve and can lead to vision loss. The research adds to growing interest in how nutritional factors may influence eye health.

Glaucoma is often called the "silent thief of sight" because it typically progresses without obvious warning signs. It is linked to increased pressure inside the eye, known as ocular hypertension, and can result in permanent vision loss if left untreated. Even with ongoing treatment, some patients continue to experience progressive vision loss.

The findings suggest vitamin B3 may have a protective role, though the research is at an early stage. Readers should note that this does not constitute medical advice, and anyone concerned about glaucoma should consult an eye care professional for appropriate screening and management.

The study was reported by Medical Xpress.