
Hi Stacey,
You're quite right of course - this is standard vet advice for non-specific GI problems. The difficulty lies in that IBS and IBD both initially present as most common GI disorders and when treated with a common grain based diet it will internally flair rapidly :-( Sadly most regular vets and their customers are unaware of the severity of these conditions - in fact it is more common for them to plod on treating a GI disorder with a wholly inappropriate diet and antibiotics - which in a relatively short time could make a relievable condition turn chronic.
IBD does not show up in blood tests, stool samples or X-rays - however occasionally if accompanied by thickening of the stomach wall it can be detected (or at least suspected) by ultra-sound. These measures are usually at least a couple of weeks or more and several £100's down the line from initially presented problems and during that time a heck of a lot of internal damage can be done.
Personally I'd rather err on the side of caution and boil some potato for a poorly dog than boil rice - if it is (as is generally the case) nothing sinister, tummy problems will clear as with a rice based diet but should it be the first onset of visible symptoms of a more debilitating illness, then at least no further harm has been done.
Teri ;-)