My partner has had CD since 8 years old. Twice in her life she has been described as "in remission". One being now, as she hasn't had any active disease for a few years.
> And I've also seen that diet and lifestyle choices can definitely affect the severity of a flare
I though the current understanding is there is no dietary intervention for CD. It certainly didn't work on my partner and none of her specialists said it would make any difference.
But I have noticed doctors in different countries have different opinions, so maybe that's the reason?
What ended up "beating" her CD was Stelara (ustekinumab) which is available through the Australian health system (our country of residence) but not in New Zealand (our home country) because their research showed it doesn't work.