Do we have a recommended ketone range during ProLon?

We do not have a recommended ketone range during ProLon mainly because although ketone measurement can indicate physiological fasting, it is not a complete indication of fasting, and is not an indicator of the molecular (cellular) fasting which ProLon also triggers. While data on ketones was not collected in the clinical trials for ProLon, many people do reach full functional ketosis (1.5mmol/dL or greater) during the fast, though it may fluctuate during the diet. Many things can impact measured ketones in the blood stream or urine, so if you do elect to measure ketones throughout the fast, please keep in mind that it may not accurately reflect ProLon’s true impact.