Selenium is an essential trace element that is part of various enzymes and is vital for the body. These selenium tablets from Now Foods contain 100mcg of selenium per daily dose, providing the necessary nutrients for the proper functioning of the human body. The product has been subjected to quality and purity testing in independent laboratories, guaranteeing its high quality. It does not contain gluten, soy or yeast, and is made without genetic engineering. Dietary supplements do not replace a balanced and varied diet. Store out of reach of children. Consult your doctor before using it if you are undergoing treatment for a disease, pregnant or breastfeeding.