That chemical Subway ditched? Yep, it's everywhere By: CNBC.com News February 07, 2014 at 13:47 PM EST Subway's decision has at least one food chain pondering its use. So how widespread is its use among fast-food giants? Very. Read More >> Related Stocks: Brickworks Ltd Dunkin' Brands Group Jack IN The Box Inc McDonald's Corp Starbucks Corp Wendys Company