So around day 6 of my fast, my blood ketones shot up over 5 mmol, and had consistently stayed there. Today I’ve dropped down to 3.6 mmol, I’m not striving to be in high ketosis, just curious why the plummet. I’ve searched online, but can’t find anything that might explain it.
Your body is becoming more efficient at utilizing the ketones or your production dropped. It could be that your fast has gone on long enough that your body is now slowing down your metabolism. You said it shot UP at 6 days implying that it’s beyond 6 days now? Which day of your fast is it?
Either you accidentally ate some sugar, or your body started to break down your muscle to maintain your blood sugar. You need to have a certain blood sugar or else you’ll die if you eat nothing your liver begins turning amino acids into sugar and to get amino acids it needs to break down your muscle