Its well known that the diet supposedly used for candida, help IBS for other reasons, not because the person has candida. But because they feel better on a diet, confuses people into thinking it was candida and not reducing sugars and carbs help IBS because of bacteria themselves causing gas and gas pressure on an alredy sensitive colon, which functions abnormally to begin with.
Candida also can't cause some of the symptoms of IBS, its not physically possible.
Candida is a yeast also an not a bacteria to begin with and is also in the gut in the first place to help fight pathogens.
To promote or say IBS has anything to do with candida AN INFECTION, hurts all IBSers.
Understanding why the diet itself might help IBS helps IBSers when they don't really have candida to begin with.