Sugary drinks and eye health may seem unrelated, but what you sip each day can affect much more than your thirst. A new long-term study found that people who consumed at least one sugar-sweetened drink daily had more than twice the risk of developing stomach cancer compared with people who rarely drank them. The study does not prove that sugary drinks caused the cancer, but the size of the association deserves attention.
Sodapop is not the only drink worth examining. Fruit punches, lemonades, sports drinks, energy drinks, sweetened coffees, and some electrolyte beverages can contain surprising amounts of added sugar. Cutting back does not mean that you should automatically switch to diet beverages containing artificial sweeteners. There are better everyday choices, including water, lemon water, coffee, tea, green tea, and drinks lightly sweetened with stevia.
How much sugar is hiding in your favorite drink? When do you actually need electrolytes? Are diet drinks a healthy substitute? This article examines the new stomach cancer research, the relationship between sugary drinks and eye health, the proper use of electrolyte beverages, and practical ways to reduce sugar without giving up every occasional treat.
A sugar-sweetened beverage is any drink containing sugar that was added during manufacturing or preparation. Common examples include:
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Detoxification is essential for maintaining health. It is the body’s natural process of identifying, breaking down, and eliminating potentially harmful substances. The liver does most of this work, while the kidneys, digestive system, lungs, skin, and lymphatic system help remove waste through urine, stool, breath, and sweat. The body continuously detoxifies itself; it does not require special cleanses or extreme diets to perform these essential functions. Several mechanisms in the body accomplish this work.
Two of the most important are the glymphatic and lymphatic systems.
The glymphatic system is the brain’s waste-clearance pathway. It relies on glial cells and cerebrospinal fluid to remove metabolic waste, especially during deep sleep.
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Eye conditions such as macular degeneration can sometimes lead to visual hallucinations. A visual hallucination means seeing something that is not really there.
The eyes send visual signals to the brain, and the brain interprets them. When vision loss reduces the amount of information reaching the brain, the brain may fill in the missing visual details. This can cause a person to see grid patterns, people, lines, shapes, or other images that are not actually in front of them.
This is known as Charles Bonnet syndrome (CBS). It is linked to vision loss and does not mean that a person is losing touch with reality.
Which eye conditions can cause visual hallucinations? How can you identify and manage them? Is it possible to prevent these eye conditions in the first place? Can nutrition and supplements help?
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Vitamin C is best known for immune support, but its role in healthy aging is broader than that. Ascorbic acid, the chemical name for Vitamin C, helps the body make collagen, supports blood vessel integrity, assists wound healing, improves the absorption of iron from plant foods, and acts as an antioxidant. These functions matter throughout the body, including in the brain and eyes.
A recent large study of older adults adds another reason to pay attention to vitamin C status. Researchers found that lower plasma vitamin C levels were associated with lower gray matter volume and weaker connectivity in a major brain network involved in memory, attention, and self-reflection. The study does not prove that vitamin C prevents brain shrinkage or cognitive decline. However, it does suggest that healthy vitamin C levels may be one marker of better brain aging. 1
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Could NMN help the body age more successfully? NMN, or nicotinamide mononucleotide, is a naturally occurring compound that helps the body produce NAD+, a vital substance found in every living cell. NAD+ plays an important role in cellular energy, DNA repair, mitochondrial function, inflammation control, and other processes that help the body stay resilient over time. However, NAD+ does not remain steady throughout life. One observational study in humans found that NAD+ levels may drop by about 50% by age 50.
For older adults, this decline may be important. Lower NAD+ levels have been associated with metabolic dysfunction, inflammation, reduced mitochondrial performance, and other changes tied to aging and chronic disease risk. Since NMN helps the body make NAD+, researchers are studying whether NMN supplementation may help restore some of this lost cellular support. NMN has recently entered the supplement market. Early research suggests that NMN may benefit several areas of aging health, including energy metabolism, insulin function, brain and nerve health, cardiovascular support, muscle function, inflammation balance, and eye health.
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N-Acetyl-Cysteine is an amino acid that has been researched heavily for its antioxidant and anti-inflammatory properties. NAC is primarily a building block for glutathione. Key clinical studies explore its role in respiratory health, vision support, liver function, aging, and anti-inflammatory properties.
As an antioxidant, NAC helps protect healthy cells by neutralizing free radicals before they can cause harm. It supports the body’s supply of cysteine, a key building block of glutathione, one of the body’s most important internal antioxidants. By helping restore glutathione levels, NAC strengthens the cell’s antioxidant defenses and helps clear reactive oxygen species, or ROS. NAC also has anti-inflammatory effects. In the early stages of immune activation, it may help reduce the release of cytokines, which are chemical messengers involved in inflammation. 1
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Oxidative stress may be at the root of many eye diseases. The body depends on a careful balance between oxidants and antioxidants. When that balance is disrupted, delicate tissues in the eye can be damaged. In this article, we will focus on an important antioxidant defense system called the Keap1-Nrf2-ARE pathway, abbreviated as NRF2. We will also look at how this system may relate to major eye diseases, including age-related macular degeneration, cataracts, diabetic retinopathy, and glaucoma—conditions that together account for many cases of vision loss and blindness worldwide.
Free radicals, such as reactive oxygen species (ROS), are oxidants produced as by-products of aerobic metabolism. In addition to the natural metabolic production of ROS, environmental sources such as light, smoking, and exposure to or intake of heavy metals also contribute to increased ROS burden. 1
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Vitamin B12 is a water-soluble vitamin your body needs for DNA synthesis, red blood cell formation, and healthy nervous system function. When vitamin B12 levels are low, people can develop anemia and experience fatigue and weakness. Therefore, maintaining adequate B12 levels is important for day-to-day energy and overall health. However, B12 can be low even in people who eat Vitamin B12-rich meat and dairy products. Vitamin B12 cannot be produced in the body, so it must be obtained from food or supplements.1
Newer research suggests vitamin B12 (cobalamin) status may influence more than nerve function alone. Findings highlighted in 2026 point to a relationship between vitamin B12 and skeletal muscle mitochondrial function (the cell’s energy-producing machinery), which may contribute to metabolic resilience and aspects of healthy aging.2 In practical terms, maintaining adequate B12 may help support muscle function and strength over time, which can matter for mobility and injury risk as we age.
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A healthy, nutrient-rich diet supports long-term brain and eye health and may help lower the risk of serious conditions like Alzheimer’s disease and other dementias, as well as vision disorders such as macular degeneration and glaucoma.
One eating pattern often highlighted for these benefits is the Mediterranean-style diet. Research links consistent adherence to this approach with lower overall mortality, reduced deaths from cardiovascular disease and cancer, and a decreased likelihood of developing chronic, degenerative illnesses.1
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Glutathione is a master antioxidant, meaning it can help neutralize a wide range of free radicals in the body. This article explains the roles glutathione plays in the body, focusing on why it matters for healthy aging. We review how glutathione supports the eyes’ natural defenses against oxidative stress. And, we discuss research linking lower glutathione levels with common vision concerns such as cataracts, glaucoma, and macular degeneration, along with a brief look at emerging research on glutathione’s role in cellular protein handling. It also covers practical ways to support glutathione through diet and supplementation.
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Natural Eye Care, Inc.
3 Paradies Lane
New Paltz, New York 12561
Phone: 845.475.4158
NaturalEyeCare™ started in 1999 to help the public and professionals learn about complementary care in eye disease treatment.
The information and recommendations we offer are based on over 30 years of peer review research and personal clinical experience which guides us in providing a valuable resource to our readers, customers and patients regarding maintaining healthy vision naturally.
We believe that vision health is intimately connected to overall mental, physical and spiritual health. Therefore we encourage people to look at their overall lifestyle and diet as part of keeping healthy vision and reducing the risk of eye disease onset. This includes diet, regular exercise, and management of daily stress. If one has health issues such as high blood pressure, a thyroid imbalance, any autoimmune disease and/or are on medication(s), these possible contributions to eye disease should considered when working with your health care professional.
Please do not hesitate to call us at 845.475.4158 with any questions and concerns.
