In this evidence-based video, Dr. Mark Stengler breaks down recent clinical research showing how vitamin D supplementation may significantly improve treatment outcomes for women undergoing chemotherapy for breast cancer. Learn how vitamin D levels influence pathological complete response rates—and why this inexpensive nutrient deserves serious attention during cancer care.

Lectins are often labeled as “anti-nutrients,” but the full story is more nuanced. In this video, Dr. Mark Stengler explains what lectins are, where they’re found, the real risks associated with raw or undercooked foods, and how proper preparation neutralizes potential concerns—while preserving possible health benefits.

Synthetic hormones carry risks your doctor may not explain. Discover the truth about progesterone and how to protect your health with natural options.

Long COVID is a real and often misunderstood condition affecting millions of people after COVID-19 infection. In this video, Dr. Mark Stengler explains what long COVID is, why symptoms are frequently dismissed, and how integrative therapies can support meaningful recovery.

Struggling with hormone imbalances, PMS, or stubborn weight gain? It could be estrogen dominance. Dr. Stengler breaks down what it is—and how to fix it naturally.

Emerging research suggests that a specific form of folate—a B vitamin critical for brain function—may help support children with autism who have an underlying folate transport issue. In this video, Dr. Mark Stengler explains how this therapy works, who it may help, and what the science actually shows.

Berberine is one of Dr. Mark Stengler’s most-used natural therapies—and for good reason. In this video, he explains why this powerful plant extract supports metabolism, blood sugar balance, cholesterol, gut health, and hormonal regulation through well-documented biological mechanisms.

Ergothioneine is a little-known, diet-derived antioxidant that can cross the blood–brain barrier and may play a major role in brain aging and cognitive protection. In this video, Dr. Mark Stengler explains what it is, why your body can’t make it, and what the research suggests about memory, inflammation, and long-term brain health.

If you’ve been diagnosed with any autoimmune disease—this video is a must-watch. Dr. Mark Stengler breaks down the real risk of developing additional autoimmune conditions and what you can do to prevent it. Don’t let new symptoms sneak up on you. Get informed. Get ahead.

Struggling with relentless sugar cravings? Dr. Mark Stengler reveals the root causes—like blood sugar crashes, cortisol spikes, and candida overgrowth—and how to naturally break the cycle with real, science-backed strategies.