Home > Newsletters > Daily: Love or hate Earth Hour? > Daily Dose: SA doctors perform second successful penis transplant > Health-in-Motion 25 October 2016 Selenium is an important nutrient Selenium is an important nutrient that forms an essential part of the human diet. Particularly good sources of this trace element include foods like fish, eggs, certain nuts, such as Brazil nuts, shellfish, meat and milk. But what exactly is selenium good for? German medical researchers have recently demonstrated that high concentrations of selenium in the blood may be associated with a lowered risk of developing liver cancer and possibly other types of cancer as well. 0 More: Daily Dose: SA doctors perform second successful penis transplantHealth-in-Motion advertisement Other news News Health24 Health Challenge: Week 42 Medical Anabolic steroids may tax the heart Medical Lung cancer diagnosis quadruples suicide risk Medical Can dirty air keep you awake? Lifestyle SEE: 7 puzzles to boost your brain power Medical Actemra approved for giant cell arteritis From our sponsors WIN a R2000 Skin Renewal voucher! Constipation in women SA's old diesel vehicles continue to fuel allergies Live healthier Dangerous winter sun » Why female students ignore the risks of indoor tanning Can rooibos protect you from the effects of UVB exposure? Skin cancer always a risk – even in winter During winter, the risk of skin cancer doesn’t disappear. CyberDoc talks to us about when to see your doctor about a strange-looking mole or spot. Did you know? » The 5 saltiest foods may surprise you Craving salt? Your genes may be the reason 10 fascinating facts about salt The one thing that fast foods, whether it be chips, hamburgers, pretzels or fried chicken have in common, is loads of salt.