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THE HIDDEN CAUSES OF PERSISTENT FATIGUE: A PHYSICIAN’S GUIDE TO OVERLOOKED METABOLIC AND ENDOCRINE DISORDERS
Chronic fatigue often signals hidden metabolic or endocrine disorders. Learn the overlooked causes—from thyroid and iron issues to insulin resistance and mitochondria.

David S. Klein, MD FACA FACPM
Dec 24, 20254 min read


Surgery, Anesthesia and GLP-1 Weight Loss Medicines: The Unseen Danger
If you are preparing for surgery, one of the most important safety steps is to inform your surgeon and anesthesia team if you are taking a GLP-1 medication. These include well-known names such as Ozempic®, Wegovy®, Mounjaro®, Zepbound®, Rybelsus®, Trulicity®, Victoza®, Saxenda®, Byetta®, and Bydureon®. While these drugs provide significant benefits for weight loss and diabetes management, they can also delay stomach emptying—a normal part of their mechanism of action. In ever

David S. Klein, MD FACA FACPM
Dec 16, 20256 min read


Have a Happy Holiday: Detox Essentials
Detoxification is often misunderstood as a fad, yet it remains a central physiological process essential for human survival. The holiday season—marked by stress, alcohol consumption, disrupted sleep, and poor dietary choices—places a substantial metabolic burden on the liver, gallbladder, kidneys, lungs, and intestinal tract. This blog outlines the science behind the body’s three-phase detox pathway and explains how targeted nutritional support can enhance natural clearance m

David S. Klein, MD FACA FACPM
Dec 2, 202510 min read


Zepbound® (tirzepatide) and Menopausal Weight Loss: A Promising Ally for a Challenging Transition
Menopause is a time of profound metabolic transition, and for many women, weight gain becomes an unwelcome companion despite disciplined efforts with diet and exercise. As estrogen levels fall, resting metabolism slows, visceral fat accumulates, and insulin sensitivity declines—creating a perfect storm that resists traditional weight-loss approaches. Zepbound® (tirzepatide) offers a meaningful breakthrough for women facing these challenges. By activating both GIP and GLP-1 re

David S. Klein, MD FACA FACPM
Nov 25, 20253 min read


Understanding the Connection Between Hypothyroidism and Atherosclerotic Heart Disease
Hypothyroidism is far more than a problem of low metabolism—it’s a quiet amplifier of vascular disease. By addressing thyroid imbalance, we not only restore energy and mental clarity but also protect the heart from atherosclerotic injury. Managing these conditions together yields the best outcomes for long-term vitality and longevity.

David S. Klein, MD FACA FACPM
Nov 13, 20255 min read


The Essential Nutrients: What Makes a Superior Multivitamin and Mineral Supplement?
Introducing an outstanding multivitamin and mineral product, offering a great value and spectacularly complete coverage. Down to Basics

David S. Klein, MD FACA FACPM
Mar 31, 20257 min read


Unveiling the Three Pillars of Nutrient Absorption: Rate, Route, and Amount
Understanding the nature of nutrient absorption, simplified.

David S. Klein, MD FACA FACPM
Jan 31, 20255 min read


Hashimoto's Thyroiditis, hypo-thyroidism and autoimmune disease? Try NAC as part of your nutraceutical program.
Hashimoto's Thyroiditis is a common cause of hypothyroidism. NAC combined with 'combined therapy' is effective in very many cases.

David S. Klein, MD FACA FACPM
Nov 11, 20244 min read


NAC (N-Acetyl Cysteine). The many uses for what may be considered 'Medical Duct Tape.' Overview in a series of deeper dives into this marvelous, inexpensive supplement.
You must get to know the value of NAC for both maintaining your health and for help in correcting a variety of medical illness/conditions.

David S. Klein, MD FACA FACPM
Nov 8, 20244 min read


Natural Approach to diagnosing and treating Low Thyroid function, Hypothyroidism
Natural Thyroid preparations make sense when treating hypothyroid conditions. This product may give you a little! Thyro-Complete

David S. Klein, MD FACA FACPM
Apr 16, 20245 min read
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