What goes in must come out. It's body waste. It is never going to smell good! eggs have sulfur; rice and bananas will concentrate the BM, black beans produce gas, anything fried will change it, eating a lot will change the color, smell, consistency, etc.
You might be a big meat eater, protein makes for strong odors, eg eggs, meat, beans.
You might also have an intolerance eg milk, fructose, glucose and need to minimise those foods. (medical tests will find out allergies too) Intolerances make for bloated feeling, the squirts, wind, pain...
We are what we eat. Why would your waste be any different? Use a little common sense, instead of trying to "gross out "the community, here at ASK. It's only your first question, and already you're not making a "good " impression. :/