Confused about hormone replacement therapy? Dr. Mark Stengler breaks down the facts about bioidentical vs. synthetic hormones, how they impact menopause symptoms, and why modern science supports their safe and effective use.

Discover the real science behind intermittent fasting and how it compares to calorie restriction. Dr. Stengler explores its effects on longevity, weight loss, inflammation, insulin sensitivity, and much more—so you can decide what’s right for your body and lifestyle.

Is weight loss really just about eating less and moving more? Dr. Stengler breaks down the outdated calorie myth and reveals 3 hidden reasons your body might be holding onto fat — even when you’re doing everything right.

Taking thyroid medication but still not losing weight? Dr. Mark Stengler explains why the real issue may be low T3 — the active thyroid hormone that most patients never get tested.

Think artificial sweeteners are a “safe” swap for sugar? Think again. Dr. Mark Stengler exposes the hidden heart risks behind common sweeteners like sucralose, erythritol, and aspartame — and reveals what natural options are actually safe.

Dr. Stengler reviews the science behind medicinal mushrooms and their effect on memory.

Struggling with weight gain, fatigue, or brain fog? Your thyroid might be the hidden culprit. In this video, discover the 8 essential nutrients your thyroid needs to function at its best

Are thyroid supplements really useless? One top doctor says yes—but the research tells a different story.

Hashimoto’s thyroiditis is the #1 cause of low thyroid—yet most patients are never told why they have it. In this video, Dr. Mark Stengler reveals the root causes, natural therapies, and the key blood tests you need to monitor and improve your thyroid health.

Discover how berberine, a powerful natural compound, supports blood sugar balance and may serve as a natural alternative to metformin for type 2 diabetes.