"We" talk plenty about it (everyone from phd friends to the NYT), but it's not actually terribly well understood yet, and nearly impossible to diagnose at the individual level. I'm pretty sure there aren't even solid guidelines yet like if X reaction then eat Y [yogurt|notyogurt|whatever].

The soylent community is pretty clear on the point this impatient guy is asking about: yes, the problem that arises when you had shitty nutrition before goes away inside a week or two, and just eat some Beano in the mean time. Haven't seen anyone who has presented evidence otherwise.

For me personally, there was zero issue; I had lots of fiber before, and soylent doesn't make me gassy at all.