He's not really a hunter-gatherer is he, he cooks all his food meticulously, history teaches me that's even further advanced than the diet of most settled civilisations?
but he never ever told me that my symptoms were either from mustard or not baking my own bread, he only showed me the science behind all this, and that e.g. there is IF in spices. As for preparing your own food like that, if you have the time and the inclination (and a good kitchen for it), why not. Don't think it's primarily for his IBS only, but maybe because he likes to know what exactly he eats. There are loads of IBS-free people out there who prefer baking their bread or cooking oats as opposed to microwaving them. I've never done either and never once did Syl advise me that I should or imply that I was lazy/ too trusting of commercial food.
I live in London and we have a blueberry juice drink that has no fibre and no high fructose corn syrup or added sugar in it. This is probably not the case in America or Canada, hence he makes his own berry juice. It's expediency. But he buys orange juice, as it's commercially available...
I myself find it challenging to eat out because everything is usually swimming in fat/ there is too much IF there, it's all to do with science again, nothing to do with additives or non-home cooked food.
-------------------- Susie, born in 1985,
(pseudo-)D and bloating April 2007-December 2010, now stable