I have never heard of swamping but makes sense. I am avoiding sugar and bread and eating leniently keto, meaning higher net carbs.
Moderation is definitely more difficult...post-it notes help lol I don't succeed everyday, and I definitely don't worry about the days I don't 80/20 ftw
I think of fasting as the body's deep clean cycle. There is a reason every major religion has a fasting ritual. It brings us closer to God, however you view that concept.