www.alternet.org/food/500-other-foods-besides-subway-sandwich-bread-containing-yoga-mat-chemical
"Subway’s announcement, earlier this month, that its bread would no longer be made with a chemical foaming agent also found in yoga mats and shoe rubber, made a splash for two reasons: first, because it marked the success of a consumer-driven campaign to get the company to reform its practices; and second, because most of us were surprised to find out that the chemical was being used in the first place."
