I have come across posts in this forum where the question on diet is asked.
I have come across an article in the British medical Journal where such a question is discussed. I think it is well worth reading. It deals with diet as the confusing and complex subject that it is.
It is worth clicking on the "Food for thought" to get the entire series on this complex subject of food.
Diet??
Diet ! where to start ?
Keto Diet started - feel so ill. Anyone else tried it?
Diet changes 
What comes after FODMAP diet?
