How come certain foods give you a foul gas and smell?!

How come certain foods give you a foul gas and smell?

I've noticed that when I buy cheap Chinese Food and eat it .. I tend to be gassy. Even if I take a dump I still have gas. Do you think my digestive is allergic to cheap Chinese Food? cause if I eat Chinese food at an authentic restaurant I don't get gassy as oppose to cheap Chinese food I buy at a grocery store. Please explain and serious explanations only.

4 weeks ago
Some grocery stores have a deli, but stores that are big than the usual ones carry deli, starbucks, sushi plus a chinese take out inside the grocery store.

There's probably one or more ingredients in the "cheap" stuff that is the offender and is not present in the authentic Chinese food. Read the labels, see if anything stands out as a possible gassy food. --try eating the "cheap"stuff one item at a sitting to better evaluate what item is the offender. Then avoid it. Maybe it's MSG in the cheap stuff--but it could be any of the ingredients.--try a different brand if you just feel the need to eat cheap Chinese food--you might find one you can tolerate.

Try cooking your own Chinese food fresh at home--google a recipe of your favorite dish. Cook, eat, then evaluate your gassiness.