Natural Eye Care with Dr. Marc Grossman, Holistic Optometrist

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, groun...

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 hea...

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 m...

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 pra...

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 conditio...

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 li...

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 
• wh...

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 spe...

Astaxanthin is showing up everywhere, from eye health supplements to skin and brain formulas, but most people still can’t answer the basics: what is it, where does it come from, and what does the research actually suggest it can do. We walk through why seniors are at higher risk for macular degeneration, glaucoma, cataracts, and dry eye, then connect those real-world concerns to the bigger drivers behind aging and vision loss...

Your eyes are not separate from your brain. Indeed, they are part of the same system. That is why we take nutrition seriously when we talk about protecting vision as you age, especially if you are worried about macular degeneration, glaucoma, cataracts, dry eye, or the slow creep of cognitive decline.

We dig into the MIND diet, a research-backed blend of the Mediterranean diet and the DASH diet for blood pressure, and explai...

We connect the dots between brain health and vision, showing how diet, the gut–brain axis, and key nutrients protect memory and eyesight. We share evidence on Mediterranean and MIND diets, spotlight DHA, B vitamins, curcumin, and offer practical food swaps that lower inflammation.

• eyes as brain tissue and early detection via retinal scans
• diet’s role in synaptic plasticity and cognition
• gut–brai...

We explain why vitamin D3 matters for eye health, where research points across dry eye, glaucoma, macular degeneration, diabetic retinopathy, and cataracts, and how to make smart, test-guided choices. We share target intake ranges, personal practices, and a simple plan: don’t guess, test.

• vitamin D3 as a hormone shaping inflammation, immunity and oxidative stress
• widespread deficiency due to limited sun, diet an...

We explore why cataracts form, what your lens needs to stay clear, and how diet, supplements, and habits can reduce risk and improve outcomes before and after cataract surgery. We also cover dry eye prevention around cataract procedures and how to protect the retina from increased light exposure.

• reasons cataracts develop and timing across ages
• nutrients that support glutathione and lens proteins
• role of caroteno...

Dry, gritty, or burning eyes don’t have to be your “new normal.” We take a deep, practical look at hyaluronic acid—what it is, why your eyes love it, and how to use it—to bring real-world relief for dryness, irritation, and even contact lens discomfort. Drawing on decades of integrative eye care, we lay out clear steps for choosing the right eye drop strength, pairing topical relief with smart suppleme...

Dr. Grossman explores why he believes that glutathione is the eye’s master antioxidant. He discusses how to restore it with food and supplements to protect against cataracts, glaucoma, and macular degeneration. He shares practical tips, synergies with vitamin C, and whole‑body benefits that support lasting vision.

• glutathione’s role in lens, retina and cornea protection
• how aging, UV and toxins lower gluta...

Vision declines quietly, long before most of us notice it. We pull back the curtain on two daily supplements—resveratrol and ubiquinol—that work at the cellular level to protect the retina, optic nerve, and lens while supporting heart health and longevity. Drawing on decades of integrative eye care, we explain how resveratrol’s antioxidant, anti-inflammatory, and neuroprotective properties help in glaucoma, catara...

In this episode, we explore tudca, a promising neuroprotective nutrient that may help preserve photoreceptors and stabilize visual signaling across several retinal diseases. We share how it works, where research stands, practical dosing, and simple ways to reduce side effects. Tudca is short for "tauroursodeoxycholic acid."

• why photoreceptors fail under oxidative stress and inflammation
• where tudca shows promise acros...

Cloudy vision and glare don’t have to dictate your life—Dr. Marc Grossman, integrative optometrist and acupuncturist, reveals practical ways to understand and manage cataracts, from early symptoms to smart surgery decisions. Discover how targeted nutrition, gentle natural supports, and a clear explanation of lens options can help you protect your sight and feel confident about your choices. Get the checklist, know what ...