Instant oatmeal is fine. Avoid the cream and fruit kind or the extra fiber, weight loss, sugar free Quaker varieties. My fav is raisins and spice. I do 1 packet of that and 1 packet of plain with a tablespoon of acacia and a packet of stevia and a little smart balance.
I still eat Luna bars despite the inulin. Clif bars are the same. I like organic cereal bars by Nature's Choice. Nature Valley crunchy granola bars are safe. There are other organic energy type bars but they are pricey. Some are made with just fruit and nuts.
I eat oatmeal for breakfast then a bar of some kind after workout. I eat PB&J or boca burgers or sweet potato microwaved and vegan chicken nuggets or other meatless food. Snacks focus on fruits like a banana and then an orange and plain almonds and lots of various snack bars (especially when farming since these are convenient- bars and bananas are my go-to foods). Sometimes after a banana I will eat some handfuls of peanuts and raisins. People more touchy with IF can't do that. Before bed I have a bowl of cereal and rice milk with my acacia. Or I'll make homemade banana/PB ice cream with my acacia dose. I usually have chex or life or cheerios but sometimes I do grainier cereals since I am ok with wheat.
-------------------- IBS-A for 20 years with terrible bloating and gas. On the diet since April 2004. Remember this from Heather's information pages:
"You absolutely must eat insoluble fiber foods, and as much as safely possible, but within the IBS dietary guidelines. Treat insoluble fiber foods with suitable caution, and you'll be able to enjoy a wide variety of them, in very healthy quantities, without problem." Please eat IF foods!