I am a data guy @exceleratorbi, and I love to track and measure things. I am also a keto/LCHF proponent @LCHF_Matt and big supporter of the movement backed up by the science. I was wondering if I could use a continuous blood glucose monitor as a non-diabetic to discover how my body reacted to various foods.
For the record.
- I have been LCHF for 4 years
- I have dropped 20kg without effort, mostly in the first 6 months.
- I need to lose a further 15 kg but find it difficult to make progress.
- I aim for around 25 gm of carbs per day maximum
- I’m pretty strict, but I do have a weakness for Chocolate.
I purchased a FreeStyle Libre online (you can’t buy them in pharmacies at this time – in Australia anyway) and I used my mobile phone as a reader (no need for the Libre reader if you have a modern NFC phone).
Non Diabetic Continuous Blood Glucose Results
The initial results I got were disappointing. Well not really, but what they showed was that my blood sugar was completely in control, as can be seen in this image from the App. I expected to see some blips based on foods I ate, but that didn’t really happen.
But then over the next 14 days, I saw a few things that blew me away.
One Beer Impact on Blood Glucose
I was travelling interstate and went to a German beer hall for dinner. There were no low carb beers, so I purchased a regular beer. Here are the results.
2 things to notice above. First the rapid spike, and then the massive drop off. My assumption is that my glucose spiked due to the 1 beer, then insulin was released and my blood glucose plummeted. Also out of interest, I was really hungry that night and actually went out for a snack (salami and cheese as it turned out). But I thought it was interesting the link between the low BG and the hunger.
Gin and Tonic (x2)
The next interesting event occurred when I was stranded interstate because of a country wide cancellation of flights. I was stuck in the airline lounge all day on Saturday and decided to have a couple of Gin and Tonics before my flight. No low carb tonic available of course. The last 2 blips on this next chart are the 2 drinks. Each drink had about 100ml of sugar tonic water.
Once again, note the massive dive in BG 1-2 hours after consumption.
Chocolate Impact on Blood Glucose
Then on Sunday morning, home again, I found a block of Whittakers Coconut Milk Chocolate in the fridge (belonged to my daughter, but that never stopped me). I had 4 square2 (my guess is about 20-25 gm). I made a note in the app when I ate it (along the top of the image) and you can see the spike.
Bunless Lamb Burger impact on Blood Glucose
The most disturbing thing I found was when I ordered a pulled lamb burger with salad and feta, without the bun or the fries. It said there was a tomato salsa with it and I forgot to ask them to remove it. When it came there was not much sauce there so I didn’t worry about it and I just ate it. This is the impact