Natural Eye Care with Dr. Marc Grossman, Holistic Optometrist

Dr. Marc R Grossman, OD, L.Ac.
  • 4.8 (32)
  • Alternative Health
  • Updated Biweekly

Leading Holistic Optometrist Dr. Marc R. Grossman, O.D., L.Ac. hosts the Natural Eye Care Podcast: approaches to vision problems, eye health, and overall health backed by research and his 40+ years of experience with patients. Most eye diseases strike seniors. Find out how lifestyle, diet, and nutrition can help maintain healthy vision and even improve eyesight. An Holistic Eye Doctor is dedicated to helping people with such conditions ranging from myopia and dry eyes to potentially vision-threatening diseases like macular degeneration and glaucoma. Dr. Grossman's podcasts cover a multi-disciplinary approach including nutrition, eye exercises, lifestyle changes, and Chinese Medicine. Dr. Grossman founded the Rye Learning Center in 1980, a multidisciplinary center for learning problems, in 1996 co-founded Integral Health Associates in New Paltz, New York, and in 1999 co-founded Natural Eye Care, Inc. His background includes degrees in Optometry, Biology, Physical Education and Learning Disabilities, coupled with yoga, bioenergetics, nutrition, Chinese medicine and acupuncture, the Alexander technique and Feldenkrais. He is co-author of half a dozen books on vision, including "Natural Eye Care: Your Guide to Health Vision and Healing" in 2019. Dr. Grossman takes an integrated approach to vision and its influence on the body, mind, and spirit. His lectures and private consultations are in high demand.

  1. 4d ago

    NMN For Eye Health

    NAD+ (nicotinamide adenine dinucleotide) is one of those behind-the-scenes molecules that quietly runs the show and when it drops with age, your energy, inflammation levels, and even eye function can feel the impact. We dig into NMN (nicotinamide mononucleotide), the naturally occurring compound studied for longevity because it helps the body produce NAD+. If you’ve been curious about NMN supplements but want a clearer, grounded explanation, we walk through what it is, why it’s popular, and what the research is actually trying to solve. We also bring the conversation straight to vision. As a holistic optometrist, I’m always looking for connections between whole-body health and common eye problems that show up later in life, including macular degeneration, glaucoma, cataracts, and dry eye. We talk about why the retina is so energy-hungry, how mitochondrial function and inflammation can shape eye health, and why researchers are exploring NAD+ support as a potential lever for retinal resilience. You’ll hear why taking NAD directly by mouth may not be the most effective strategy, and why NMN is often discussed instead. Then we zoom in on the eye-specific findings that have people paying attention: preclinical evidence suggesting NMN may help reduce retinal inflammation, support mitochondrial performance, clear damaged cells, and even increase tear production. We also discuss what’s been reported around glaucoma, including observations of lower NMN levels and research exploring optic nerve protection and intraocular pressure support. If you care about healthy aging, natural eye care, and smart supplementation, this is a practical starting point for better questions and better choices. At the Natural Eye Care online store, we carry an NMN supplement called Wonderfeel NMN capsules, available at https://store.naturaleyecare.com/nmn-w.html Subscribe and leave a review if this helped, and share the episode with someone thinking about longevity and eye health.

  2. Aug 8

    Higher Vitamin C Levels May Signal A Healthier Brain

    Vitamin C gets treated like a one-note “immune vitamin,” but the real story is bigger and far more relevant to healthy aging. We dig into what ascorbic acid actually does in the body, from collagen production and blood vessel support to antioxidant protection that matters for high-demand tissues like the brain and the eyes. If you care about preserving vision, protecting your lens, and supporting long-term cognitive health, this conversation reframes vitamin C as a daily essential, not a seasonal add-on. We also walk through compelling research in older adults showing an association between lower plasma vitamin C levels and lower gray matter volume plus weaker connectivity in key brain networks tied to memory, attention, and self-reflection. That’s not proof of cause and effect, but it’s a strong signal that vitamin C status may be a useful biomarker for healthier brain aging. We keep it grounded by zooming out to the full nutrition and lifestyle picture, including omega-3 fatty acids, B vitamins, magnesium, vitamin E, carotenoids, exercise, sleep, blood sugar control, blood pressure control, and cognitive engagement. On the vision side, we explain why the eye is so vulnerable to oxidative stress from light exposure, high oxygen use, inflammation, and time. Vitamin C concentrates in the aqueous humor and lens, helping defend against protein damage linked with cataracts, and it supports collagen that helps maintain the structure of the cornea, vitreous, retina, and ocular blood vessels. We also cover how vitamin C fits into the AREDS nutrient formula for age-related macular degeneration progression and why glaucoma conversations often include oxidative stress and vascular support. You’ll leave with a clear list of vitamin C-rich foods, practical timing tips for a water-soluble vitamin, and a realistic view of where supplements may fit. Subscribe, share this with a friend who cares about eye health, and leave a review with your biggest question about vitamins for brain and vision aging. For more information, visit naturaleyecare.com and drgrossman2020.com  Our email address is info@naturaleeycare.com

  3. Jul 23

    Can a Free Discovery Call Help Your Eyes?

    Your vision is much more than just your eyes. Dr. Grossman starta from a surprising truth: embryologically and neurologically, the eye is brain tissue. Given that the brain has neuroplasticity, visual function could be more adaptable than many people realize. This opens the door to a broader, more hopeful way to think about eye health. We walk you through the two ways we can work together. The first step is a free 10 to 15 minute discovery call to find out whether our natural eye care and integrative optometry approach could help you protect your precious gift of sight. To sign up, visit https://www.drgrossman2020.com/ The second step is a deeper 45 minute to 1 hour consultation where we get specific, building protocols that may include eye exercises, lifestyle adjustments, targeted nutritional supplementation, and complementary tools like acupuncture, Chinese medicine, microcurrent stimulation, and homeopathy. We also say this clearly: sometimes regular medicine, medication, or surgery belongs in the plan. Integrative medicine means using the best of both at the same time. We also dig into why so many people are struggling with dry eye, cataracts, glaucoma, and macular degeneration right now. Screen time, blue light exposure, chronic stress, nutrient-poor diets, and environmental toxins can all stress the visual system. You’ll hear how proper nutrition and key nutrients like macular carotenoids, antioxidants, omega-3s, and bioflavonoids fit into a holistic strategy, along with breath and mindset practices that heal the nervous system. If you want a clearer, more actionable roadmap for long-term eye health, subscribe, share this with a friend, and leave us a review.

  4. Jul 9

    Melanin Protects Your Retina More Than You Think

    Your eye color can change your day-to-day comfort in sunlight and it can hint at different long-term risks, but the real story is melanin. I’m Dr. Mark Grossman, an integrative medical optometrist and licensed acupuncturist, and I walk through what melanin is, how it functions as a natural pigment inside the eye, and why it acts like an internal shield against harmful light. We connect the science of eye pigment to practical outcomes: why darker eyes often block more UV and reduce internal glare, why lighter eyes can experience more light scatter and photophobia, and what that can mean for macular degeneration risk. We also discuss a noteworthy tradeoff mentioned by the American Academy of Ophthalmology about dark eyes and a slightly higher cataract risk, plus the higher risk of ocular uveal melanoma (a rare eye cancer) associated with lighter irises. From there, we get concrete about natural eye care and prevention. I explain melanin’s protective roles like absorbing UVA and UVB radiation, helping stabilize free radicals, and filtering glare across the retina. Then we shift into what you can control today: wearing 100% UV-blocking sunglasses, using a wide-brimmed hat outdoors, and even looking into melanin-based sunglasses, which block 100% of UVA/UVB rays and filter High-Energy Visible (HEV) blue light. Finally, we review nutrients and herbs that may influence our ability to build melanin, including green tea, turmeric, ginseng, lotus flour, fenugreek, and saffron, with a clear-eyed look at what’s promising versus what’s not yet proven. If you care about eye health, UV protection, and simple habits that support healthy vision, subscribe, share this with a friend, and leave a review. And, visit us at https://naturaleyecare.com/

  5. Jun 25

    How N-Acetylcysteine Supports Cataracts And Macular Degeneration

    Your vision is constantly battling oxidative stress, and that fight gets harder with age. We dig into N-acetylcysteine (NAC), a widely studied antioxidant that helps your body produce glutathione, one of your most important internal defenses. If you’ve ever wondered why “free radicals” keep coming up in eye health, this conversation clarifies the chain of cause and effect. We connect NAC to the eye conditions older people worry about most: cataracts, macular degeneration, and dry eye. Plus, we talk about retinitis pigmentosa, a rare genetic disorder. You’ll hear why oxidative stress can damage lens proteins in cataracts, why glutathione levels matter in the lens, and how NAC fits into a natural eye care approach. We also talk about targeted options like antioxidant eye drops for lens support, including formulas that combine NAC with N-acetylcarnosine, plus what the research suggests about macular degeneration risk and dose-response patterns. Then we zoom out to the daily habits that make these strategies work: food sources (think cruciferous vegetables like broccoli, kale, and Brussels sprouts), when supplementation may be useful, and why absorption and delivery form matter more than hype. If you want an evidence-informed, integrative take on eye supplements, glutathione support, and practical vision protection, you’ll get clear next steps. Subscribe to the Natural Eye Care Podcast, share this with someone who cares about their eyesight, and leave us a review so more people can find natural, complementary strategies for better eye health. Visit our website at https://naturaleyecare.com/

  6. Jun 11

    Five Kitchen Spices That Support Eye Health

    Your next meal or beverage might be a chance to help protect your eyesight. We walk through the exact spices Dr. Mark R. Grossman uses almost every day and why they matter for natural eye care, especially if you’re concerned about macular degeneration, cataracts, glaucoma, or stubborn dry eye from nonstop screen time. This is a practical, kitchen-first conversation from Dr. Grossman, the integrative medical optometrist and licensed acupuncturist with decades of clinical experience.  We start with turmeric and its active compound, curcumin, a potent natural anti-inflammatory. Curcumin helps reduce inflammation associated with dry eye syndrome. It supports eye cells under oxidative stress. You’ll hear simple prep tips you can use tonight. Find out why it's smart to prepare turmeric with ground black pepper and a healthy fat like olive oil. Then we get into saffron, the “expensive” spice that may be worth it for vision support. We discuss research linking saffron supplementation to improved retinal function in early macular degeneration, including enhanced contrast sensitivity and visual acuity. Learn easy ways to use tiny strands of saffron in warm water, tea, rice, baked goods, and broth.  We also cover paprika, which contains lutein and zeaxanthin. These special antioxidants are often described as internal sunglasses that help filter blue light and support the macula. Learn how cinnamon protects the eye vessels by helping to balance blood sugar.  Finally, we mention two bonus spices: ginger for inflammation and circulation, cayenne for vitamin A and tear support, and garlic, including fermented black aged garlic.  Subscribe for more natural eye health strategies, share this with a friend who lives on screens, and leave us a review if these tips help you build a simple daily routine. You can find many of the nutrients and supplements mentioned in our podcast in our online store: https://store.naturaleyecare.com/

  7. May 29

    Coleus Forskohlii For Eye Pressure and Vision Health

    We explore coleus (Coleus forskohlii) and its active compound forskolin, including what research suggests about eye pressure and other vision-related uses. I also share practical safety cautions so you can think clearly about integrating an Ayurvedic herb with standard eye care.  • who is most at risk for common age-related eye conditions  • how lifestyle, diet, and nutrition support healthy vision  • what coleus is and why forskolin is the key compound  • how forskolin may affect intraocular pressure and glaucoma risk  • why I recommend combining options with your doctor’s plan  • what the research suggests for dry eye symptoms  • side effects and safety concerns, including low blood pressure  • possible allergy reactions and medication interactions  • when to talk to your doctor before trying coleus supplements or eye drops  Talk to your doctor about possibly integrating coleus into your treatments for eye conditions, especially for glaucoma, and visit us at naturaleycare.com where we're looking into the latest ways of integrating Western, Ayurvedic, Chinese medicine together to help keep your precious gift of sight.  For more information, visit naturaleyecare.com and drgrossman2020.com  Our email address is info@naturaleeycare.com

  8. May 15

    Your Daily Eating Habits Can Protect Your Sight

    Your eyes do not live in isolation. They are wired into your brain, your nervous system, your sleep, and your daily habits and that means “better vision” often starts with choices that look nothing like an eye chart. We walk through the food and lifestyle routines Dr. Mark Grossman follows personally as an integrative medical optometrist and acupuncturist with decades of experience in natural eye care. We get specific about diet for eye health and brain health, including why absorption matters more than good intentions, how mindful eating (no distractions, slower chewing) supports digestion, and why an alkaline-leaning pattern with more fruits and vegetables and fewer refined carbs can change how you feel. We also talk about the Mediterranean diet and the MIND diet as practical frameworks, then share a flexible juicing recipe loaded with greens, berries, healthy fats, and supportive add-ins like ginger and chia. From there, we connect nighttime routines to repair, including finishing meals at least three hours before bed, and we explore stress tools that calm the body fast. Meditation, deep breathing, and even simple vagus nerve practices like gargling and yawning help shift you into a parasympathetic state that supports recovery. We also cover movement, social connection, and how to handle computer eye strain with eye exercise breaks and the 20-20-20 rule. If you care about macular degeneration prevention, dry eye relief, and protecting long-term vision as you age, this is a simple plan you can act on today. Subscribe, share this with a friend who stares at screens all day, and leave a review so more people can find natural, practical eye health strategies. For more information, visit naturaleyecare.com and doctorgrossman2020.com Our email address is info@naturaleyecare.com If you have any questions, call us 845-475-4158

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About

Leading Holistic Optometrist Dr. Marc R. Grossman, O.D., L.Ac. hosts the Natural Eye Care Podcast: approaches to vision problems, eye health, and overall health backed by research and his 40+ years of experience with patients. Most eye diseases strike seniors. Find out how lifestyle, diet, and nutrition can help maintain healthy vision and even improve eyesight. An Holistic Eye Doctor is dedicated to helping people with such conditions ranging from myopia and dry eyes to potentially vision-threatening diseases like macular degeneration and glaucoma. Dr. Grossman's podcasts cover a multi-disciplinary approach including nutrition, eye exercises, lifestyle changes, and Chinese Medicine. Dr. Grossman founded the Rye Learning Center in 1980, a multidisciplinary center for learning problems, in 1996 co-founded Integral Health Associates in New Paltz, New York, and in 1999 co-founded Natural Eye Care, Inc. His background includes degrees in Optometry, Biology, Physical Education and Learning Disabilities, coupled with yoga, bioenergetics, nutrition, Chinese medicine and acupuncture, the Alexander technique and Feldenkrais. He is co-author of half a dozen books on vision, including "Natural Eye Care: Your Guide to Health Vision and Healing" in 2019. Dr. Grossman takes an integrated approach to vision and its influence on the body, mind, and spirit. His lectures and private consultations are in high demand.

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