Nutritionist Leyla Muedin discusses the importance of trace minerals selenium and iodine, their health benefits, and food sources. Leyla details the roles of selenium in immunity, thyroid function, antioxidant protection, reproductive health, DNA synthesis, and reducing cancer risk. She addresses sources such as Brazil nuts, seafood, and enriched foods while cautioning about possible toxicity. Leyla then covers iodine's critical function in thyroid hormone production, brain development, and immune support, highlighting sources like seaweed and iodized salt. Emphasizing the global concern of iodine deficiency, especially in pregnant women, she underscores the minerals' significance for overall health.