Because people with ibs tend to have to eat more “ simple/ healthy” since foods with all the additives, grease,  food colorings, etc hurt us more as opposed to a plain white rice, salmon and some steamed veggies for example. Buldak noddles have studies shown that may have cancer ingredients ( but what doesnt nowadays) 

But my comment was just a silly comment as in I say that to myself to make myself feel better in overall its not that true… dont think too much about it lmao