From the opinion of the European Food Safety Authority (‘the Authority’) adopted on 9 December 2009, read in combination with the opinions of 15 September 2009 and 15 April 2008, it results that manganese chelate of hydroxy analogue of methionine does not have an adverse effect on animal health, human health or the environment.
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:104:0034:0036:EN:PDF