Hello! First post here. I’ve been doing keto for a few years now and just found this forum, what a wonderful resource.
I recently got a Keto Mojo and would like to start testing certain foods to better understand what to stay away from. My question is what am I looking for in my after-meal glucose tests to indicate what is good or bad?
Any help would be appreciated.
Well, the obvious thing to do is to measure your blood glucose prior to eating a particular food, then eat the food, and then measure your blood glucose an hour or two after eating. (I’m not certain how long you should wait after eating. It may be worthwhile to do tests at several different intervals.) Look for significant changes in blood glucose.
So… what’s significant?
You should first take a number of back-to-back readings with your keto mojo to see what kind of variation you see when testing using the same blood draw. When I’ve done this test with my keto mojo, the variation is larger than I would like. In one particular back-to-back test, I obtained readings of 90, 97, and 101 mg/dL.
So an increase of 10 (or so) mg/dL might not be significant with this particular meter since you can get this kind of variation with back-to-back testing.
My Bayer Contour Next does much better at not showing much back-to-back variability. When doing back-to-back tests with that meter, I often see identical readings from one (back-to-back) test to the next. When I get a different reading, it’s usually off by just 1 mg/dL.
I always test + 1hour then + 2 hours. I believe BS level should return to normal within two hours.
However eating keto I am finding that with the exception of 2 instances my blood sugars have not spiked at all - success!
I haven’t done any back-to-back tests to check accuracy, but I will. I can say that my fasting numbers seem very stable at 70-73 across several days.
So it sounds like it’s normal to have a minor increase after a no-carb meal, with a return to normal in ~2 hours.
If I were to eat a jelly donuut, what would it look like? A huge spike, with a longer period to return to normal?
Haha. That was completely hypothetical. It’s not something I’m willing to do either 
Patrick
Great question, and I would like to understand this as well. I would like to understand how to interpret the readings you get at T0, T30, T60, T90, T120, T150 etcetc.
Help please guys!
Cheers
Alec
Likewise! But I am sure that it would give me a huge spike in sugar levels and would take a while to return to current levels!