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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


Uric Acid and Longevity: Live Longer by Keeping the Level below 5.5 mg/dl
Most people associate uric acid with gout, but emerging research suggests it may be far more important. Elevated uric acid has been linked to hypertension, cardiovascular disease, kidney disease, insulin resistance, endothelial dysfunction, and accelerated aging. While many laboratories consider levels up to 7.0 mg/dL “normal,” evidence suggests that levels below 5.5 mg/dL—and ideally near 5.0 mg/dL—may provide greater protection against vascular injury and chronic disease. U

David Stephen Klein, MD FACA FACPM
Jun 166 min read


Vitamin D in Midlife May Reduce Future Tau Protein Burden: Implications for Dementia Prevention
A major new study published in Neurology demonstrated that individuals with higher circulating vitamin D levels during midlife showed significantly lower tau protein accumulation in the brain nearly two decades later. Tau protein accumulation is one of the central pathological hallmarks of Alzheimer’s disease and other neurodegenerative disorders. These findings suggest vitamin D optimization during midlife may represent an overlooked but potentially powerful intervention for

David Stephen Klein, MD FACA FACPM
Jun 156 min read


Creatine: Is It Safe for Everyone? Hidden Kidney Risks and Safer Alternatives
Creatine is widely used to improve muscle mass and athletic performance, but it may not be appropriate for everyone. While generally considered safe in healthy individuals, concerns remain for patients with kidney disease, diabetes, hypertension, dehydration, or those taking medications that affect renal function. This article reviews potential risks, explains who should exercise caution, and discusses safer alternatives for preserving muscle mass and healthy aging.

David Stephen Klein, MD FACA FACPM
Jun 106 min read


Why Do I Wake Up at 3 AM Every Night? "3 a.m. Awakening"
Do you find yourself waking up around 3 AM night after night and struggling to fall back asleep? You're not alone. While occasional awakenings are normal, consistently waking during the early morning hours may signal an imbalance in cortisol, blood sugar regulation, stress hormones, sleep architecture, or circadian rhythm function. Understanding why this happens can provide important clues about your overall health. In this article, we'll explore the common causes of 3 AM awa

David Stephen Klein, MD FACA FACPM
Jun 65 min read


Stud Mix®: A Natural Approach to ED, Male Performance, Libido, and Prostate Treatment
Many men experience declining libido, erectile dysfunction, reduced energy, and prostate enlargement as they age. Stud Mix® combines amino acids and botanical ingredients that support nitric oxide production, hormonal balance, prostate health, and sexual performance. Learn how this physician-developed formulation may provide a natural and cost-effective approach to maintaining male vitality.

David Stephen Klein, MD FACA FACPM
May 295 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


N-Acetyl Cysteine (NAC) and Addiction Recovery
N-acetyl cysteine (NAC) is gaining attention as a supportive therapy for addiction recovery. Research suggests NAC may help reduce cravings and compulsive behavior associated with tobacco, alcohol, opioid, and cocaine dependence by restoring glutamate balance, reducing oxidative stress, and replenishing glutathione. Learn how this antioxidant may support neurologic recovery when integrated into a physician-guided treatment program.

David Stephen Klein, MD FACA FACPM
May 265 min read


Vitamin E and Benefits to Human Health: More Than a Single Vitamin
Vitamin E is far more complex than many people realize. Rather than a single nutrient, vitamin E consists of multiple related compounds including tocopherols and tocotrienols, each with unique biological effects. This article reviews the different forms of vitamin E, their roles in cardiovascular, neurological, immune, and cellular health, and why high-quality supplements should contain a broad spectrum of vitamin E compounds rather than isolated alpha-tocopherol alone.

David Stephen Klein, MD FACA FACPM
May 254 min read


Bergamot Extract and Cholesterol Lowering: Natural Support for Heart Health
Bergamot is a citrus fruit increasingly studied for its potential to support healthy cholesterol levels and cardiovascular health. Rich in flavonoids and antioxidant compounds, bergamot may help reduce LDL cholesterol, triglycerides, inflammation, and oxidative stress while supporting HDL cholesterol. This article reviews the science behind bergamot, possible benefits, dosing considerations, and safety information for individuals seeking natural support for metabolic and hear

David Stephen Klein, MD FACA FACPM
May 195 min read
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