268 Prevent Macular Degeneration and Cognitive Decline: How Essential Carotenoids Protect Your Brain and Vision with Prof. John Nolan
Growing Older Living Younger: About longevity, wellness, healthspan,
Release Date: 05/18/2026
Growing Older Living Younger: About longevity, wellness, healthspan,
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“You got to just move. It doesn’t matter how efficient your movements are, what matters is that you are moving.” - Susan Bock Smith
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Grief is not a problem to be solved or something we simply “get over.” In this profound conversation, Dr. Gillian Lockitch speaks with philosopher and grief expert Thomas Attig about mourning as a lifelong process of relearning how to live in a world forever changed by loss. Drawing on decades of scholarship and personal insight, Thomas explains how grief can deepen our love, strengthen resilience, and help us find wisdom and meaning in life’s most difficult transitions. This episode offers compassionate guidance for anyone grieving a loved one or supporting someone through loss. Thomas...
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I talk with Brian Morgan. President of Think Deeply, Write Clearly about bridging the many divides that are polarizing our society, through creative thought and communication.
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FLASHBACK FRIDAY: A recurring theme in this podcast is the importance of mindset in supporting consistency, when making the small changes in lifestyle and habits that can have a big positive impact on your health and vitality as you age. Your beliefs shape how you think, feel and act. And if you are to overcome life’s challenges when they strike, you have to believe in your ability to do so.My guest today, Adena Sampson, is the founder of Outloud Productions & The Unbreakable Spirit movement, a breakthrough coach, and best-selling author of the book. The Road Back to Me: 9...
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Are the so-called “heart-healthy” vegetable oils in your kitchen truly supporting your health—or could they be contributing to inflammation and metabolic imbalance? In this episode of Growing Older Living Younger, Dr. Gillian Lockitch speaks with nutrition expert Cherie Calbom, MS, CN, about industrial seed oils such as canola, soybean, sunflower, and corn oil, and the growing concerns surrounding their role in oxidative stress, chronic inflammation, and healthy aging. Cherie explains how highly processed oils may affect metabolic health, brain function, and overall wellness, and shares...
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Does dance also have the power to ward off dementia? Dr. Joe Verghese is Professor of Neurology at the Albert Einstein College of Medicine in New York. His research centers around the effects of aging and disease on gait and cognition in older adults, and whether cognitively stimulating activities such as dance, can reduce the risk of losing mobility, falling, developing dementia and general poor health.
info_outlineWhat if essential carotenoid antioxidants you consume today, could protect your vision and cognitive functions now and in the future? In this episode, Professor John Nolan explains how specific carotenoids, lutein, zeaxanthin and meso-zeaxanthin play a critical role in protecting the retina and brain from oxidative stress, a key driver of damage and age-related decline. As a leading researcher in ocular and brain nutrition, he shares ground- breaking insights from clinical trials showing how targeted supplementation can improve visual function and support cognitive performance. Listeners will learn why prevention must begin early, how to identify effective nutritional strategies, and how to take control of long-term eye and brain health to extend their healthspan.
Professor John Nolan is a full professor at South East Technological University in Waterford, Ireland, where he holds the Howard Chair in Human Nutrition. He is a nutritional biochemist specializing in the role of carotenoids in vision and cognitive health. As Director of the Nutrition Research Centre Ireland he has led major international clinical trials, including the CREST studies, published over 100 peer-reviewed scientific papers, and is founder and chair of the International Brain and Ocular Nutrition Conference. His research focuses on targeted nutrition to prevent and manage age-related diseases such as macular degeneration and Alzheimer’s disease, advancing evidence-based nutritional strategies to support lifelong eye and brain health.
Episode Timeline
00:00 – Welcome and introduction
04:25 – Origins of carotenoid research and macular degeneration
Early work identifying nutrition as a key modifiable risk factor
09:30 – What carotenoids are and why they matter
Role as antioxidants and “internal sunscreen” for the eye
13:55 – Can macular degeneration be reversed or improved
Distinguishing regeneration, slowing progression, and functional improvement
17:30 – Brain and eye connection
How nutrition may reactivate neural pathways and support cognition
20:27 – Challenging the current medical model
Why prevention must replace late-stage intervention
25:16 – The importance of meso-zeaxanthin
Why some individuals cannot convert nutrients effectively
28:37 – Supplement quality and evidence-based formulations
Risks of unregulated supplements and importance of clinical validation
32:18 – Nutrition, lifestyle, and informed decision-making
Why education and professional guidance are essential
33:21 – Starting early for lifelong protection
“From the cradle to the dance floor” approach to nutrition
35:55 – Declining nutrient density in modern food
Why diet alone may no longer be sufficient
37:18 – Wrap-up and key takeaways
Connect with the research of Prof John Nolan
https://profjohnnolan.com
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LinkedIn: https://www.linkedin.com/in/
Facebook: https://www.facebook.com/
Upcoming Vision for Vision documentary (watch the trailer )
Calls to Action :
Connect with Dr. Gillian Lockitch at https://www.askdrgill.com/ or email: askdrgill@gmail.com for a personal consult
Download Guide to Nature's Colorful Antioxidants 2026
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