GMI drop

[dawnVTC]

Hi there, this is my first post. I was diagnosed with T2 back in late November, I went on to Mounjaro as recommended by an endocrinologist. I titrated up to 12.50 but found that way too much. I’m sitting on 10 mg at the moment and have lost weight. All of a sudden my glucose level gmi has dropped quite dramatically. I was 5.5 a couple of weeks ago and now 4.7. Is this the two factors, weight loss (but not massively in last couple of weeks) and Mounjaro or just a natural body adjustment? I’m really not experienced with T2 to understand why is would happen. Hope I’ve made sense!

 

[Melgar]

Hello and welcome to the forum @dawnVTC. Yes you make perfect sense. I've never taken Mounjaro so I cannot comment on the medication, however, from my own experience my cgm estimated HbA1c has been a poor indicator of my actual HbA1c results. In point of fact my HbA1c has always been higher than the predicted value of my cgm. I use Libre 2.

 

[dawnVTC]

Hello and welcome to the forum @dawnVTC. Yes you make perfect sense. I've never taken Mounjaro so I cannot comment on the medication, however, from my own experience my cgm estimated HbA1c has been a poor indicator of my actual HbA1c results. In point of fact my HbA1c has always been higher than the predicted value of my cgm. I use Libre 2.

Thank you! I’ve been looking at a monitor I can calibrate, I’ve been using a Libre 3. It’s very expensive! I went and got a finger prick kit and it was 3% out! Too far in my opinion. Thanks for your advice.

 

[Jaylee]

Hi @dawnVTC ,

There are free 3rd party apps like Diabox, Juggluco or XDrip that should work with the L3 that can be calibrated..

Hope this helps?

 

[ianf0ster]

I'm not a Libre user, but a 3% error seems to be well withing tolerance.

 

[dawnVTC]

Hi @dawnVTC ,

There are free 3rd party apps like Diabox, Juggluco or XDrip that should work with the L3 that can be calibrated..

Hope this helps?

Yes, very much so. I didn’t have a clue about those apps. Thank you so much.

 

[Jaylee]

Yes, very much so. I didn’t have a clue about those apps. Thank you so much.

Depending on if you have a smartwatch & what type? Readings could also be shared from a phone to your watch using these apps on your watch display, too..

 

[dawnVTC]

Depending on if you have a smartwatch & what type? Readings could also be shared from a phone to your watch using these apps on your watch display, too..

I’ve got an old Apple Watch, it’s odd because there’s no app for it but I get messages if my levels are too high/low. I’m leaning towards Dexcom. Thank you.

 

[wobbles]

I’ve got an old Apple Watch, it’s odd because there’s no app for it but I get messages if my levels are too high/low. I’m leaning towards Dexcom. Thank you.

Hi there,

I also made the move to the Dexcom One+ (from Libre 2)

I had been using Libre for many years and self funding (paying for it myself)… as a CGM, Libre was a game changer. That is why I kept on paying for it.

Reasons for considering the change:

- I am a Apple Watch user and Dexcom have a native Apple Watch app that works seamlessly
- Over the years I had a high failure rate / reliability issue with Libre. On average 15-25% of sensors I had to return and replace
- Dexcom have a subscription option so it works out slightly cheaper

Of all the above reasons, the Apple Watch app was the clincher for me…

After years using 3rd party apps and technical workarounds it began to annoy me that a multi billion dollar corporation couldn’t be bothered to develop a smartphone app - in 2025…

 

[dawnVTC]

Hi there,

I also made the move to the Dexcom One+ (from Libre 2)

I had been using Libre for many years and self funding (paying for it myself)… as a CGM, Libre was a game changer. That is why I kept on paying for it.

Reasons for considering the change:

- I am a Apple Watch user and Dexcom have a native Apple Watch app that works seamlessly
- Over the years I had a high failure rate / reliability issue with Libre. On average 15-25% of sensors I had to return and replace
- Dexcom have a subscription option so it works out slightly cheaper

Of all the above reasons, the Apple Watch app was the clincher for me…

After years using 3rd party apps and technical workarounds it began to annoy me that a multi billion dollar corporation couldn’t be bothered to develop a smartphone app - in 2025…

Yes, it’s strange, it a nicer interface than Dexcom’s but not having an app for the watch is rather disappointing. As you say 2025

 

[Jaylee]

I’ve got an old Apple Watch, it’s odd because there’s no app for it but I get messages if my levels are too high/low. I’m leaning towards Dexcom. Thank you.

Hi,

Most smart watches by default would get the similar message notifications as one would on the phone?
To get updated CGM readings on the watch face in a “complication” with Apple, it looks like the app Shuggah could work on an Apple Watch?
I use Android for my phone. But my iPad has found Shuggah that could be used from the App Store to compliment this function..

 

[dawnVTC]

Not heard of that one, thanks.