Omelet wrote:

And yes, after years of playing around with low carbing, I can no longer
get into Ketosis at below 20 carb grams per day... hence experimenting
with the fat fast.

It's also for people who didn't get into ketosis during their first
Induction. Not the same thing as falling out after being on ketosis for
a while and definitely does not apply to folks who were in ketosis in
the first several months of their low carbing. The wrong tool for the
job.

It's something we've discussed on and off group before. Check out
"reversal diet" in the index of the 1993/1999 editions. Dr A
encountered folks who'd stay well below their CCLL for over six months,
or who'd never found their CCLL but just stayed at 20, and fallen out of
ketosis at 20. Some sort of long term metabolic adjustment that I call
"Eskimo mode" or "Inuit mode" of switching to a slower and more
efficient fat burning mode. The mention of reversal diet discusses
one way to reset the metabolism after staying too low too long. It's
probably the fastest way.

Back in 2000 I switched to a plan like Carbohydrate Addicts Diet as a
sort of mantenance strategy and I did it for a year to reset my
metabolism when my metabolism made that long term adjustment. It was a
lot easier but also *much* slower than the two week reversal diet.

If you've been well above 50 grams per day during assorted weeks in the
last 6 months this does not apply to you.