The effects of my intolerances as they are referred to is that whenever I ingest anything containing (almost 160+ other things) eggs, dairy, cereals, fructose, vinegars, anything with Soy/Tofu, apple skin, tomato skin, yeast, and over ripe bananas I have serious mood changes, not to mention GI issues, and suffer with dermatitis on my face and arms. It is also characterised by bloody boils deep in the skin in fatty (I'm 70Kg, 183cm and 13% body fat, so that's relative) areas of my body.
This went undiagnosed for so long, that I never counted on a cure, and, in fact there isn't a cure, my body has become allergic to those foods for some reason, and eventually it may be that my immune response subsides, and I can once again enjoy them.
(Note about how thrilled I was to hear about Soylent, and then how dismayed that they decided to hone in on the cheapest possible recipe, at the expense of the "Pea" protein variant which might have been suitable for me)
I think the meals/feels app could make a difference to any hackers who take the time to use it.
For anyone else, who thinks they may have allergies/intolerances similar to mine, beware that topical allergy testing won't catch it, but a focused blood panel for IgE response might. As far as typical reaction times go, GI disorder can set in anything from instantly, to 24 hours later, and the effects on my mood, and skin, etc have lead time of anything from 24-100 hours, and a recovery time of as much as three weeks.