[rgoodwintx]

Rule of thumb (Keto for mostly 15+ yrs, from 300lbs to 180) is 2-3 days, and at least Atkins version is those 2-3 days at <20 carbs.

"Being in ketosis" is hard to track; the urine test strips are helpful but not always accurate. Someone came up with a breath analyzer at some point but I lost track of the project.

Some recent stuff has shown that a 24-36hr fast can "kick start" ketosis as well; anecdotally it seems to work for me, but again I have to kind of go by feel. (Or if I note that I suddenly drop the 3-5 lbs of water weight that came on when out of ketosis.)

[zachruss92]

The breath analyzer that is being hyped right now is called Keyto. You can also get blood testers and prick your finger.

I don't track myself being in ketosis on a daily basis, but I can definitely tell if I go over based on how I feel.