You're right to be skeptical It's a misconception that the liver ONLY makes ketones in the absence of sugar and insulin .. and conversely, that when carbs are consumed the ketone-switch gets turned OFF. Even if it did, it would take a lot longer than one hour ... blood sugar doesn't begin to peak until one to two hrs. after a meal, depending on what else has been eaten and how fast the person's stomach and intestines digest the food. Insulin will spike to deal with the sugar by either moving it into the cells to be used as fuel, or more likely to cause it to be converted to triglyceride fat for storage. Of course, fat storage is exactly what we don't want. In the meantime, the liver will continue to make ketones, but it'll be from fat that's eaten, not body fat.

The ketone testing strips do not indicate what's happening in the blood .. only what has "spilled" over into the urine since the last time the bladder was emptied. Depending on how many carbs are eaten and for how long, ketone production may eventually slow and stop .. but it takes hours to a day or more to happen.

The important thing to remember is that the more immediate effect of a carb binge is fat storage and increased triglycerides .. reduced ketones will be a delayed reaction.


Doreen