You have until May 21, 2013 to submit your comments, so if you want to make your comments or data known about this petition, then click here: <a href="http://www.regulations.gov/#!submitComment;D=FDA-2009-P-0147-0012">http://www.regulations.gov/#!submitComment;D=FDA-2009-P-0147-0012</a> As you know, there are numerous health risks associated with chemical sweeteners, including aspartame, which is often used in diet soda and other foods.