Selenium, a trace element, has significant benefits for thyroid, immune, heart, and brain health when consumed in recommended amounts. However, its excess can cause severe health issues, including kidney failure and heart problems. Recent research suggests selenium’s potential in enhancing chemotherapy effectiveness, particularly for treating metastatic kidney cancer. Selenium, a trace element, has significant benefits for thyroid, immune, heart, and brain health when consumed in recommended amounts. However, its excess can cause severe health issues, including kidney failure and heart problems. Recent research suggests selenium’s potential in enhancing chemotherapy effectiveness, particularly for treating metastatic kidney cancer. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle