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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.

What Counts as a Sugary Drink?

A sugar-sweetened beverage is any drink containing sugar that was added during manufacturing or preparation. Common examples include:
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Brain fog can make it hard to recall words, concentrate, or complete everyday tasks. Even after spending enough time in bed, you might feel exhausted. Your eyes might feel dry, burn, or have trouble shifting focus.

What causes brain fog? Poor or broken sleep is one common cause. Sleep problems can affect your energy, memory, attention, and eye comfort. They can leave you feeling mentally cloudy and physically drained during the day.

Sleep problems are not the only possible explanation for tired eyes and brain fog. Diabetes, anemia, thyroid disorders, medications, nutritional deficiencies, and other health conditions can cause similar symptoms. In this article, we talk about symptoms of brain fog, poor sleep, and why tired eyes and brain fog often occur together. We also point out how excessive screen time can lead to brain fog. And we offer practical tips: eye exercises, easy lifestyle changes, nutritional support, and when to call a doctor.
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Want to support healthier vision and improve your overall health as you age? One practical place to begin is to eat fewer ultra-processed foods and choose more whole or minimally processed foods. You do not need a perfect diet, nor do you need to eliminate every packaged product. Small, consistent substitutions can improve the quality of your diet while reducing ingredients and processes that promote inflammation, oxidative stress, poor blood sugar regulation, diabetes, heart disease, and cancer.

A diet dominated by ultra-processed foods may raise the risk of serious age-related eye conditions, including macular degeneration, cataracts, and glaucoma. These products may contribute to high blood sugar, inflammation, and oxidative stress that damage delicate cells and blood vessels in the eyes. A diet lacking essential fatty acids and other nutrients may also interfere with healthy tear production and contribute to dry eye. When you choose these foods, you miss out on crucial nutrients. And, many ultra-processed foods are high in calories while providing few useful nutrients. Hence the term “junk food.” ^{1 2}

What Are Ultra-Processed Foods?

Ultra-processed foods are industrial formulations made from extracted ingredients and additives rather than intact foods. They often undergo processes such as molding, pre-frying, or chemical modification and may contain flavors, colors, sweeteners, emulsifiers, or other substances that are rarely used in a home kitchen. ³
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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

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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The fact that the retina and optic nerve are brain tissue could give doctors instant insight into Alzheimer’s disease. Modern eye-scanning technology is beginning to detect brain problems by examining the retina. Non-invasive exams and OCT (Optical Coherence Tomography) scans can detect the early appearance of beta-amyloid plaques and tau proteins. Plaques and tau proteins are found in the brains of patients with Alzheimer’s disease. Their appearance in the retina may indicate early signs of Alzheimer’s disease. The earlier Alzheimer’s is caught, the more time a patient has to head it off, particularly through diet, exercise, and targeted supplementation.

Unlike the brain, the retina can be photographed and measured quickly, without surgery or ionizing radiation. A scientific review published in July 2026 examines the growing evidence that Alzheimer’s-related changes may affect retinal nerve cells, blood vessels, supporting cells, and proteins. ¹ The findings are encouraging, but they do not mean that an eye examination can currently tell you whether you have Alzheimer’s disease.

Why Alzheimer’s Disease May Affect Your Eyes

The retina is part of your central nervous system. It develops from the same embryonic tissue as the brain and contains neurons, immune cells, blood vessels, and protective barriers that are similar to those in the brain. ²
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A widely used food thickener, xanthan gum, may have more complex effects on the gut than previously recognized. Xanthan gum helps give many highly processed ice creams, sorbets, and yogurts their gooey, creamy texture.* Valued for its thickening, stabilizing, and gelling properties, xanthan gum is among the food industry’s most widely used additives. It can also make liquids easier and safer to swallow for people who have difficulty swallowing, a condition known as dysphagia. The additive is common in ultra-processed foods, gluten-free products, baked goods, protein shakes, sauces, gravy, salad dressings, and supplements. 

Research from the Federal University of São Paulo (UNIFESP) in Brazil raises questions about the effects of prolonged consumption of xanthan gum.¹ Rats that received it for ten weeks developed colon inflammation, changes in their gut microbiota, and reduced intestinal barrier integrity. 
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GLP-1 drugs have produced remarkable weight-loss results for many people, but can these medications have serious side effects? Weight-loss medications containing semaglutide, including Wegovy and Ozempic, reduce appetite through several interconnected systems involving the brain, digestive tract, pancreas, hormones, and nerves. ¹

Semaglutide does not appear to cross the blood-brain barrier freely. Instead, it can reach or influence selected appetite-regulating areas, including regions of the hypothalamus and brainstem. ² By affecting appetite and food-reward signaling, the medication can help you feel satisfied with less food and may reduce cravings and eating motivated primarily by pleasure rather than hunger. ³
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Healthy cooking can help protect your eyes, brain, heart, and overall wellness. The way you choose, prepare, cook, and store food can affect nutrient levels, toxin exposure, inflammation, blood sugar balance, and long-term disease risk. Simple choices, such as using safer cookware, limiting aluminum exposure, choosing fresh or frozen foods over canned foods, and cooking with healthy oils, can make everyday meals more nourishing.

This article shares practical cooking tips for healthy eating, including how to reduce aluminum exposure, choose safer cookware, prepare vegetables and proteins, support the body’s natural detoxification pathways, and make a nutrient-rich French Peasant Stew. These healthy cooking strategies are especially helpful for people who want to support vision health, reduce oxidative stress, and build better daily habits without making food preparation complicated.
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New study finds link between microplastics and heart disease. The tiny pieces of plastic flake off water bottles, chip off cutting boards, rinse out of polyester blouses and coffee pods, and come from many other objects. These do not only build up in the environment, but also accumulate in the body.

A 2024 study found that microplastics make their way into the arterial plaques, and end up causing fatty deposits inside the blood vessels. People whose plaques contained plastic particles were more likely to suffer heart attacks or strokes or die from other causes in the following years as compared to those without plastic detected in the plaque.

In a study published in the European Heart Journal, the results found that 84% of the people who had a heart attack had plastics in their blood, compared with only 40% of people with less severe heart disease and 32% of control patients with normal arteries.

The conclusion was that these study results provided further evidence that heart disease risk may be linked to plastic exposure. ¹
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