One Day MD | Evidence-Based Wellness

Food is supposed to make us healthy. It is supposed to provide the building blocks needed to build and repair the body, supply the energy to do so, and help us remain free of chronic disease. Yet by almost every measure, the modern diet is failing us. Roughly 90% of a typical supermarket is filled with what author Michael Pollan famously called "food-like substances." No matter which chronic disease you examine — obesity, diabetes, heart disease, metabolic syndrome — rates have risen from rare or virtually unknown to epidemic proportions. Over just a 20-year span, with no meaningful increase in caloric intake and only a moderate rise in exercise, obesity rates in the United States climbed from 30% to 42%. Something in our environment has changed, and the evidence increasingly points to what we are being told to eat.   What Are Seed Oils? Seed oils are industrial oils extracted almost exclusively from seeds and beans — products that would...

CPAP Works—But Many People Can’t Tolerate It Obstructive sleep apnea (OSA) is not a rare condition anymore. It affects millions globally and significantly increases the risk of: Daytime fatigue and brain fog High blood pressure Heart disease and stroke risk Metabolic dysfunction The current gold standard treatment is continuous positive airway pressure (CPAP) . CPAP is highly effective when used consistently. It prevents airway collapse during sleep and dramatically improves oxygenation. But there is a problem: Many patients struggle to tolerate CPAP long-term. Common complaints include mask discomfort, dry mouth, sleep disruption, and poor adherence. This gap between efficacy and real-world usability is what drives interest in new therapies—including sleep apnea drugs. Is There Really a Sleep Apnea Drug? You may have seen headlines suggesting a “pill for sleep apnea” could replace CPAP. Here’s the scientific reality: There is currently no approved medication that replaces CPAP for mo...

Your body is quietly running a repair operation right now. Old cells die, damaged tissues signal for help, and specialised cells migrate to where they're needed. Stem cell therapy is built on a single ambitious idea: that we can harness — and supercharge — that process. It sounds almost too good to be true. And depending on who's selling it, it sometimes is. The global stem cell therapy market is valued at roughly $20 billion in 2026 and is projected to nearly triple by 2036. Thousands of private clinics now offer treatments for everything from arthritic knees to Parkinson's disease. Yet the science supporting most of those treatments is still catching up. Understanding what stem cells genuinely can and cannot do may be the most important thing you read before making a decision about your health. What Are Stem Cells? Stem cells are the body's raw material — undifferentiated cells that can divide and develop into more specialised cell types. A stem cell in bone marrow mi...

The modern wellness industry has turned thyroid hormones into a controversial shortcut for weight loss, energy enhancement, “metabolic optimization,” and anti-aging. On social media and in biohacking circles, drugs like Levothyroxine, Liothyronine, and even desiccated thyroid extracts are increasingly discussed beyond their legitimate medical role. But do thyroid hormones actually improve wellness in healthy people? Or are they being oversold in ways that may cause long-term harm? The answer is more nuanced than many online claims suggest. What Thyroid Hormones Actually Do The thyroid gland produces two major hormones: T4 (thyroxine) T3 (triiodothyronine) T4 acts largely as a storage hormone, while T3 is the biologically active form that influences: Metabolism Heart rate Body temperature Brain function Muscle performance Cholesterol regulation Energy production A simplified relationship looks like this: T4 \rightarrow T3 When thyroid hormone levels are too low, people can develop: Fati...

As the AI wearable market matures, a new subset of devices is emerging that goes beyond simple step counting and sleep tracking: wearables that inform you how your diet affects your physiology and forecast metabolic outcomes . These devices and platforms combine continuous glucose monitoring (CGM), biometric sensing, and AI analytics to provide users with predictive insights about how food, activity, and lifestyle choices impact health. Below are the top predictive nutrition wearables and integrated systems in 2026 — ranked by insight depth, predictive capability, clinical relevance, and ecosystem support. 1. Dexcom Continuous Glucose Monitors (CGMs) Best for: Real-time glucose tracking + predictive trend watch Dexcom’s CGM systems — including the Dexcom G7 and the newer Stelo by Dexcom — remain foundational for predictive nutrition intelligence. These wearables continuously measure glucose levels every few minutes and deliver real-time data for diet response modeling. ( Wikipedia ...

Vitamins, minerals, and macronutrients like proteins, carbs, and fats are not the same as phytonutrients. They can be found in a variety of fruits, vegetables, spices, and even edible flowers.  Phytochemicals serve as pollination attractants or as defenses against pest and insect attacks and other stresses, like as ultraviolet light. Moreover, phytochemicals also contribute to color or aroma of the foods and are recognized to have potential benefits for human health and nutrition. Foods rich in phytochemicals are frequently quite colorful, but these nutrients are also rich in some white foods for example olive oil, onions, and garlic.  Phytonutrients Benefits Some of the important bioactive phytonutrients include polyphenols, terpenoids, resveratrol, flavonoids, isoflavonoids, carotenoids, limonoids, glucosinolates, phytoestrogens, phytosterols, anthocyanins, ω-3 fatty acids, and probiotics. They play specific pharmacological effects in human health such as anti-microbial...

Besides nutrients, plant-based foods (legumes, vegetables, fruits, whole grains, nuts, seeds, and teas as well as herbs and spices) have another “crop” of naturally occurring compounds with potential health benefits. Collectively they’re called phytonutrients, meaning plant chemicals. “Phyto” means plant. Think fight for “phytos,” since they appear to promote health by sparking body processes that fight, or slow, the development of some diseases. Phytonutrients comprise many different chemicals, including carotenoids, indoles, glucosinolates, organosulfur compounds, phytosterols, polyphenols, and saponins.  Why have phytonutrients captured our attention? Because of their potential for health promotion! Today consumers are more interested in positive nutrition and self-care: adding (not avoiding) foods that may enhance fitness, boost immunity, slow aging, and prevent or slow the chance for chronic disease. Sound like you? Research on phytonutrients is the new frontier in nutrition, ...