Dr. Colleen Huber discusses selenium's critical role in cancer prevention and treatment at her clinic, Nature Works Best. She explains how selenium supports glutathione to protect mitochondria—the body's key defense against cancer—and shares evidence from studies showing reduced cancer incidence with supplementation.

Three Most Important Points:

1. Selenium is essential for glutathione production, which protects mitochondria from oxidative damage; healthy mitochondria are the strongest tool against cancer cells.

2. Clinical studies, including long-term human trials, show selenium supplementation significantly lowers risks of prostate, lung, colorectal, and other cancers, with overall cancer morbidity and mortality reduced by up to 50%.

3. Intravenous selenium (often combined with other nutrients) is more effective for active cancer patients than oral forms alone, as it helps stop carcinogenesis at the cellular level.