Yes DNP gas surpasses anything a protein fart can muster. When i would run a cycle actually my body would just have a weird smell about it. This coupled w/ feeling wiped out and hot as hell usually kept me from moving much.
I notice when i switch to a higher fat diet from more of a zone approach i get bad gas also. This also happens to me w/ carb-ups on keto type diets too. For me, i just get gas whenever i switch gears w/ dieting until my body gets accustomed to the new foods.