| the effect of selenium supplementation on dth skin responses in healthy north american men. | the trace element selenium (se) is essential for immune system development and function in animals. however, the exact functions of se in the human immune system and the achievable health benefits from se supplementation remain unclear. to test whether an increased intake of dietary se affects immune function, we conducted a randomized, controlled trial of se supplementation in healthy free-living men. forty-two men were administered 300microg of se a day as high-se baker's yeast, or low-se yeas ... | 2009 | 19747623 |