Posted by michael73 on January 31, 2003, at 19:43:21
In reply to Re: dl-phenylalanine or l-tyrosine...*Be Careful!!* » jay, posted by Larry Hoover on January 31, 2003, at 16:45:43
What do the prefixes dl,l etc signify on some supplements? Is there more than one version of phenylalanine? Michael73
poster:michael73
thread:138568
URL: http://www.dr-bob.org/babble/20030130/msgs/138609.html