http://archinte.jamanetwork.com/ en-us Mon, 11 Mar 2013 00:00:00 GMT Mon, 11 Mar 2013 15:51:23 GMT Silverchair editor@archinte.jamanetwork.com webmaster@archinte.jamanetwork.com http://archinte.jamanetwork.com/article.aspx?articleID=1568519 Mon, 11 Mar 2013 00:00:00 GMT Thomas LK, Elinder C, Tiselius H, et al. <span class="paragraphSection">Less Is More</span> 173 5 386 388 10.1001/jamainternmed.2013.2296 http://archinte.jamanetwork.com/article.aspx?articleID=1568519 http://archinte.jamanetwork.com/article.aspx?articleID=1568521 Mon, 11 Mar 2013 00:00:00 GMT Fletcher RH. <span class="paragraphSection">Vitamin deficiency diseases, such as pellagra, rickets, beriberi, night blindness, and scurvy, used to account for an enormous burden of suffering worldwide. One by one, the underlying dietary deficiencies were defined, and, in the early part of the 20th century, the chemical structures of the missing nutrients were identified. While vitamin deficiency diseases remain endemic in some parts of the world, in most regions they have been eliminated by public health programs and improvements in living conditions. These diseases are rarely seen in most countries, except in individuals at increased risk because of unbalanced diets, malabsorption, abnormal losses (eg, hemodialysis), or uncommon genetic defects.</span> 173 5 375 394 10.1001/jamainternmed.2013.2305 http://archinte.jamanetwork.com/article.aspx?articleID=1568521