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Quercetin for Diabetes and Insulin Resistance: Could Nature's SGLT-2 Inhibitor Support Better Metabolic Health?
Quercetin is a plant compound found in onions, apples, berries, and capers. Emerging research suggests that certain forms may influence glucose absorption and some of the transport pathways associated with SGLT activity. Could this help support diabetes, insulin resistance, weight management, and metabolic health? Learn what is established, what remains theoretical, and why quercetin should complement—not replace—appropriate medical treatment.
David Stephen Klein, MD FACA FACPM
7 days ago13 min read


C15:0 Essential Fatty Acid: The Newly Discovered Longevity Nutrient?
For decades, nutrition science focused primarily on omega-3 and omega-6 fatty acids. New research now suggests that C15:0 (pentadecanoic acid), a naturally occurring odd-chain saturated fatty acid, may represent an overlooked essential nutrient. Early evidence indicates C15:0 may support mitochondrial function, reduce inflammation, stabilize cell membranes, improve insulin sensitivity, and potentially influence longevity pathways involved in healthy aging.
David Stephen Klein, MD FACA FACPM
Jun 185 min read


Green Tea Extract and Liver Health: Can It Help Hepatitis, NAFLD, NASH, and MASH?
Green tea extract is useful in the treatment of hepatitis, NAFLD, NASH, MASH Green Tea Extract and the Modern Liver Disease Epidemic Fatty liver disease has become one of the most common chronic diseases worldwide. Millions of adults develop excessive fat accumulation within the liver long before symptoms appear. Over time, this condition may progress toward inflammation, fibrosis, cirrhosis, liver failure, and liver cancer. The terminology surrounding fatty liver disease is
David Stephen Klein, MD FACA FACPM
May 285 min read


Metabolic Syndrome: The Clinical Turning Point You Can Still Reverse
Metabolic syndrome marks the point where insulin resistance becomes measurable disease. At this stage, the process remains highly reversible. Early detection and targeted intervention can prevent progression to heart disease, diabetes, and cognitive decline.
David Stephen Klein, MD FACA FACPM
May 143 min read


Insulin Resistance: The Hidden Precursor to Cardiovascular Disease, Dementia, and Accelerated Aging
Insulin resistance develops silently years before diabetes, accelerating heart disease, cognitive decline, and aging. Early detection with proper lab testing allows effective, targeted intervention to reverse risk and restore metabolic health.
David Stephen Klein, MD FACA FACPM
May 123 min read


Alpha Lipoic Acid and Healthy Aging
Alpha lipoic acid supports mitochondrial energy production, improves insulin sensitivity, and protects vascular and nerve health. This physician-to-patient guide explains how ALA may support disease prevention and healthy aging when used within a comprehensive longevity strategy.
David Stephen Klein, MD FACA FACPM
Mar 274 min read


What Is an Antioxidant—and Why Are Antioxidants Important?
Antioxidants are essential biological protectors that help maintain cellular integrity by neutralizing harmful molecules known as free radicals. Free radicals are produced naturally during metabolism and play limited roles in immune defense and cell signaling. However, when their production exceeds the body’s protective capacity—a state known as oxidative stress—they can damage cell membranes, proteins, mitochondria, and DNA. Over time, this damage contributes to aging and ma
David S. Klein, MD FACA FACPM
Mar 246 min read
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