Low dietary omega-3 linked to decreased longevity

January 11, 2011

Low dietary omega-3 intake is ranked among the top 10 preventable causes of death, according to a recent study. This study looked at the effects of diet and lifestyle choices, along with certain metabolic disorders such as blood sugar imbalances and hypertension, and attempted to answer the question: “How many deaths could be prevented if better diet and lifestyle choices are made?”

When it came to the omega-3 question, the conclusion was that there are perhaps 100,000 deaths each year due to inadequate omega-3 in the diet. Interestingly, the significance of low dietary omega 3 was found to be similar to other risk factors such as smoking, obesity or physical inactivity, high blood sugars and cholesterol and alcohol use in determining longevity.

While it’s hard to completely isolate the effects of certain dietary nutrients on human health and draw definite conclusions, one thing is clear – consuming more marine-sourced omega-3 is critical to a healthy lifestyle. Another study has linked macular degeneration (the most common cause of blindness in older adults) with a higher risk of heart attack. Could there be a common thread in the underlying mechanism of each of these disease processes? The anti-inflammatory effects of omega 3 in the diet have been shown to significantly reduce the risk of heart disease, and several studies including the latest AREDS 2 are showing a significant link between increased dietary omega-3 and reduced risk of vision loss from macular degeneration.

Coincidence? Not likely…

Woman with bob haircut and large blue and purple glasses, furrowing her brow and pursing her lips.
By Rosendo C February 11, 2026
Online glasses may look like a bargain, but poor fit and subpar lenses can lead to discomfort and blurry vision. Here's what to watch out for.
Surgeon holding an intraocular lens with forceps, next to its plastic case, in a sterile setting.
By Tom Wilk February 11, 2026
Explore your intraocular lens (IOL) options after cataract surgery. Learn the pros, cons, and benefits of each type to make the right choice for your vision.
Woman with long dark hair, holding her chin, looking thoughtful, indoors.
By Tom Wilk February 11, 2026
Think you don't need an eye exam if you have perfect vision? Learn why regular eye exams are essential for your overall health and long-term eye comfort.
Woman undergoing eye exam with a slit lamp and an assistant holding a lens.
By Tom Wilk January 28, 2026
Discover how dry eye can impact your cataract surgery results and what you can do to improve healing and clarity before your procedure.
Woman having an eye exam with a slit lamp machine, smiling.
By Tom Wilk January 27, 2026
Think your eyes are fine? Learn why skipping regular eye exams could put your vision and overall health at risk, even without symptoms.
Child receiving eye exam with doctor, mother present. White medical office.
By Tom Wilk January 27, 2026
Discover the main causes of myopia in children and how to protect your child’s vision. Find practical steps you can take to reduce the risk of progression.
Man having an eye exam with an ophthalmoscope, being examined by a doctor.
By Tom Wilk November 27, 2025
Wondering what to ask before cataract surgery? Here are the top 7 questions to ensure you're confident, prepared, and ready for clearer vision.
Woman with  blonde hair and glasses, resting chin on hand, smiling.
By Rosendo C November 26, 2025
Struggling with progressive lenses? Discover practical tips to ease the transition, improve clarity, and avoid common mistakes.
Man with glasses in hand is touching his eyes like he is in pain.
By Rosendo C November 26, 2025
Discover how antifatigue lenses reduce digital eye strain, enhance comfort, and support healthier vision.
Black-framed glasses, one lens clean, one smudged. Icons show cleaning supplies, hairspray, bug spray, and sunscreen.
By Rosendo C October 29, 2025
Discover the everyday chemicals quietly damaging your eyeglass lenses. Learn how to avoid them and keep your vision crystal clear.
Show More