Diet is all important. Stools and gases smell most pungent with a high meat and fat diet, because excess hydrogen sulfide seems to be made (this is the class ‘rotten eggs’ smell). A vegetable diet is less odorous, unless it contains a great deal of vegetable protein, and a milk diet, despite its comparatively high fat content, smells least of all.
Babies’ stools also vary in odor depending on their diet. A breast-fed baby produces small stools and they smell quite pleasant. Once babies are put on solid foods their stools smell more. Therefore, it is necessary to have a well balanced diet and nutrition to meet our daily needs.