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C15:0 (Pentadecanoic Acid): Could This Be the First Newly Recognized Essential Fatty Acid in Nearly 100 Years?
Could C15:0 (pentadecanoic acid) become the first newly recognized essential fatty acid in nearly a century? Emerging research suggests this naturally occurring odd-chain saturated fatty acid may support healthy cell membranes, mitochondrial function, metabolic health, and healthy aging. Learn what current science tells us about food sources, supplements, recommended intake, and why researchers are paying close attention to this unique nutrient.

David Stephen Klein, MD FACA FACPM
Aug 77 min read


Pepto-Bismol®: An Under-appreciated Treatment for Dyspepsia, Traveler's Diarrhea, and Foodborne Illness Prevention
Discover the evidence-based uses of Pepto-Bismol® for functional dyspepsia, traveler's diarrhea, foodborne illness, and Helicobacter pylori. Learn when it works, how to use it safely, and why this century-old medication remains an important part of modern digestive care.

David Stephen Klein, MD FACA FACPM
Aug 65 min read


Pre-Diabetes: Insulin Resistance, Is It a Real Condition — Or a Warning Sign We Ignore at Our Own Risk?
Many people are told they have pre-diabetes and assume it simply means they may someday develop diabetes.
The truth is far more concerning.
Long before someone officially develops Type 2 diabetes, elevated insulin levels and subtle abnormalities in blood sugar regulation may already be damaging blood vessels, nerves, kidneys, and even the brain.
Prediabetes is not almost disease.
It is often the earliest measurable sign that metabolic dysfunction has already begun.
The g

David Stephen Klein, MD FACA FACPM
Jul 36 min read


How Room Humidity Affects Sleep Quality: An Overlooked Variable in Restorative Sleep
Most people focus on sleep duration, mattress quality, or circadian rhythm when trying to improve sleep. Few realize that bedroom humidity can profoundly influence airway comfort, thermoregulation, snoring, sleep fragmentation, and even overnight hormone balance. Maintaining proper humidity may be one of the simplest and least appreciated interventions for improving restorative sleep.

David S. Klein, MD FACA FACPM
Jun 235 min read


Huperzine A: Nitric Oxide for Erectile Dysfunction, Dementia. Benefits and Side Effects
Natural compounds can enhance both mental and physical performance while also protecting long-term health. One intriguing candidate is Huperzine A—an extract from the Chinese club moss Huperzia serrata. Traditionally used in Eastern medicine for memory and clarity, this alkaloid has gained attention in modern research for its role in nitric oxide (NO) signaling, neuroprotection, erectile dysfunction, and vascular function.

David S. Klein, MD FACA FACPM
Dec 26, 20256 min read


GLP-1 Medications and Dementia Prevention. Weight Loss, Diabetes Risk Reduction and Alzheimer's Prevention, as a Bonus!
Popular GLP-1 medications, like Ozempic and Zepbound may provide prevention of Alzheimer's Dementia on top of the weight reduction and diabetes control.
Reduction of weight helps with Sleep Apnea, as well. Understand the need for medical monitoring if you are going to use these medications.
This is a worthy read to give a comprehensive presentation as to the risks/benefits as well as the need for vigilance.

David S. Klein, MD FACA FACPM
Sep 23, 202512 min read


The Many Advantages of adding Hyaluronic Acid: A Comprehensive Discussion of Cardiac and Gastrointestinal Benefits, chronic disease treatment and prevention.
Adding high molecular weight, liquid Hyaluronic Acid to your daily routine provides tremendous health benefits at a remarkable value.

David S. Klein, MD FACA FACPM
Feb 28, 20255 min read
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