Lake turnover occurs when there is a drastic change in weather and is commonly noted with the very hot water in the summer begins to cool in the spring. ... Lake turnover occurs when there is a drastic change in weather and is commonly noted with the very hot water in the summer begins to cool in the spring.
Selenium and iodine: thyroidâs natural partners. The problems which selenium deficiency can cause are made more serious when another key nutrient, iodine, is low as well. Iodine is a nutrient that is much better known for its role in thyroid health. Selenium is crucial in aiding the body to recycle iodine.
Selenium in biology. Although it is toxic in large doses, selenium is an essential micronutrient for animals. In plants, it sometimes occurs in amounts toxic as forage, e.g. locoweed. Selenium is a component of the amino acids selenocysteine and selenomethionine.