The Selenium 200 mcg 120 Tablets from Source Naturals may play a key role in metabolism and provide antioxidant support. Selenium is a powerful antioxidant mineral found in the soil. Apart from water and some foods like fish‚ grass-fed and pasture-raised meats‚ whole grains‚ nuts‚ and seeds‚ selenium can be found in the supplement from Source Naturals too. Selenium is part of a small cluster of important proteins‚ each of which plays a critical role in our health. These selenium-containing proteins are called selenoproteins. Studies have shown that good selenium nutrition is important for antioxidant protection and for other health reasons as well and this is where the Selenium 200 mcg 120 Tablets from Source Naturals might be useful. Selenium is required for the proper activity of a group of enzymes called glutathione peroxidases. These enzymes in turn play an important role in the body's detoxification system and they also protect against oxidative stress‚ caused by free radicals produced by oxidation. It is the antioxidant property of the selenium that might fight this oxidative stress‚ to prevent the activity of free radicals. The Selenium 200 mcg 120 Tablets from Source Naturals is suitable for vegetarians and contains no dairy‚ egg‚ gluten‚ corn‚ soy‚ wheat‚ no sugar‚ starch‚ salt‚ preservatives‚ artificial color‚ flavor‚ or fragrance. These statements have not been evaluated by the Food and Drug Administration (FDA). These products are not meant to diagnose‚ treat or cure any disease or medical condition. Please consult your doctor before starting any exercise or nutritional supplement program or before using these or any product during pregnancy or if you have a serious medical condition.