Bless him, best of luck
IBS is a bastard.
Everything always in small quantities, and logged (I use my phone).
Strawberries, raspberries, not-ripe bananas, those baby boxes (13/14g) of raisins, red grapes, oranges, clementines.
Olives, beetroot, pickles of all sorts (not onions).
Gluten-free pasta shapes from Asda and Tesco are fine, with a little fresh or tinned tomato and peppers / courgettes / grated carrot. (Add any meat or fish or tofu.)
Rice or rice noodles and soy sauce, with peppers / courgettes / grated carrot. (Add any meat or fish or tofu.)
These ^^ are good for snack pots.
Bread - I'm trying Warburtons gluten free / 'Free From' white bread tomorrow. Sick of Schar brand.
'Free From' jelly sweets like Jealous are fine, in small quantities.
(Btw don't Coco Pops have rather a lot of sugar in them for low FODMAP in the exclusion phase?)