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For "Normal" people, it's useful to know what foods cause how much of a spike, how quickly that spike comes down and if it crashes afterwords. This can be used to optimize one's diet and workout schedule.

The reason for a watch is the health and workout apps. Everything else is fluff.
No it’s not. We do not have robust data that this makes any difference. You can modify the glucose index of many foots by chewing more.

Your healthy body is already optimizing these things in real time far faster and better than you can on the macro level with eating. Diabetes is a pathology. Normal people manage their sugars just fine and trying to optimize them is as likely to be counter productive as helpful. Apologies to those who bought a continuous monitor off YouTube and it changed their life.
 
This isn't for type 1 diabetics. That would require medical device approval by FDA which Apple does not want.

This will not replace glucometers. That would require medical device approval by FDA which Apple does not want.

This is for retrospective analysis and identification of trends relating to prediabetes and type 2 diabetes time in range.

Think: Today your blood sugar was in range for 80% of the time!
Not: Right now your blood sugar is 5.6mmol
 
This would be the greatest advancement in smart devices in the history of smart devices. It would literally change millions of people’s lives. And add to the way that the watch saves people’s lives.
In addition to diabetes, just think how it might've helped Steve Jobs (and others with pancreatic diseases) if he'd seen his blood sugar changing 24 months before his diagnosis and if he'd been seen a year sooner.

Definitely a game changer.
 
I do not believe the technology exists for this to ever be possible and accurate. But I would love to be proven wrong.

Normal people monitoring glucose is like drinking high pH water … a complete waste of time given homeostasis. However for those who currently need better glucose control from diabetes this could be amazing. But once someone starts injecting insulin based on this it cannot be ok or close. It has to be accurate every time or people die.

Perhaps it will be along the lines of an A1C test which can see how you are doing over the course of weeks or months.

It may even start out that way, but then be tested in things like the Apple Heart study which found it useful to detect afib and the like
 
“Apple wants to be able to warn people if they're prediabetic” - that is not a feature that diabetics would care about, general population, sure but this will only give you a trend indication, not actual glucose level.

What diabetics want is CGM or continuous glucose monitoring which has been in use for the last 10 years or so (eg Dexcom). IF/WHEN AW offers that capability it will have to be a medical device and it’s going to cost at least 2k if not more, still worth it for all diabetics…

I just wonder if that won't be any start and then they will have it on millions of devices and can run studies to show that it works in real time too. I presume that's the goal.
 
It sounds like it is 5+ years away.
That's a triggering timeline... I've been told that a diabetes cure is 5 years away, and could assume presumptively Apple's therefore missed the mark.
But I keep hearing that '5 years away' portion for thirty years... so maybe still Apple's effort is welcome.
I'm certain whatever is developed will have quite a large MARD, and likely many generational improvements, but a welcome technology when it appears.
 
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Wow... I'm surprised Steve Jobs initiated this project, though. I thought Apple Watch was something completely started after he passed.
He was a visionary. I wouldn’t be surprised if he looked at one of his cars one day and said to himself maybe Apple should sell cars. I’m not sure how good of an idea that would be, but I wouldn’t be surprised if it crossed his mind. However a watch that monitors your health is definitely a project I can see Steve getting actively involved with years ago.
 
T1 diabetic of 32 years here, and you are exactly right. I'm not interested in broad trends in my glucose; I'm interested in knowing exactly what my glucose is at a given moment.

The Bloomberg report is a bit misleading because most T1s have all but abandoned direct blood sugar testing with strips except for calibration of more modern CGM devices, like Dexcom or Libre. I haven't used a blood glucose test strip in years.

While I'm thrilled to see investment in meaningful technology for T1s, I will remain uninterested in a glucose-sensing Apple Watch until it provides readings that are at least as accurate and as frequent as my Dexcom CGM does. Even if that occurs, I would continue to remain uninterested until that Apple Watch technology is integrated with my OmniPod 5 insulin pump (or whatever version of the OmniPod I'm using at that point), which automatically delivers insulin according to my blood sugar readings. And even if that occurs, I would probably be required to wear the darn Apple Watch at night so the blood glucose readings could make their way to my OmniPod 5, which is not a thrilling proposition to me.

I feel a bit like Apple is attempting to solve a problem for which there are already very good solutions, and it's at least a decade behind the competition. I'd be thrilled to be proven wrong, but I'm not encouraged by this news.
Mr. Jaybear,

I think maybe you and I caught the diabetes around the same time? Pretty sure I caught it from not washing my hands after riding the L to and from work as a young man:)

Unfortunately, you're spot on. Seeing the trends is neat, but you can't dose insulin from that--at least it's frowned upon. And your point about the CGM data driving the pump overnight is a good one. Apple Watch would need to be able to read our BG at night too. So there you have a battery issue to deal with. My pump needs CGM data 24/7, otherwise I'd wake up feeling like hammered crud. I see the battery issue being a major part of this puzzle: how do you charge a device that is supposed to be hooked up to me 24/7? My current pump goes nuts when I'm just swapping out a battery for 5 seconds;)

I'd love to see some magic tech come out and amaze us all and prove me wrong, but the folk down at Dexcom, and even Medtronic, are probably a decade ahead of Apple on this, if they're even going down the non-invasive road at all. Remember the GlucoWatch Biographer from around 2005? It never proved accurate enough to tie to an insulin dose, and was usually way off of a finger prick.

Hey, if anyone can maybe pull it off, Apple can!

More useful tech means it's easier for me to stay healthy and live a normal life--very different from 30 years ago. I easily maintain an A1C today that was only a dream back then, and it's because of the tech I have now.
 
I've been waiting for Dexcom to allow AW to read their CGM directly (instead of requiring an iPhone in the loop). As soon as that is sorted I will ditch my Fitbit and buy my first Apple Watch. I expect Dexcom will sort this long before Apple shrinks their direct read version into an AW chassis. This does not even factor in any FDA oversight into the whole process as that can add years to the project all by itself.
And the new Dexcom G7 sensor isn't much larger than an Apple watch face.
 
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Hahahahahaha. Still waiting for Apple to innovated here?. Apple last ideas died with Steve.
The new capabilities depend on tech. Developed by a Chinese vendor, Apple just send the “plans”, not any actual R&D on this, is it???
 
The FDA regulatory burden on medical devices is way too high for the Apple watch to provide any kind of real time information. It takes years of work to get approval for a medical device with many studies required. The Apple Watch or Phone cannot fundamentally be a medical device because there is no assurance that the other things they are doing will not impact the medical function. Medical devices tend to be low tech, with few functions, and very reliable. A watch that runs many different pieces of software, is refreshed every year, has access to the internet, and has a lot of user control is absolutely never going to be evaluated as such. It takes years for new Dexcom or Libre devices to just get clearance and approval to enter a new market - nevermind be refreshed or updated. And what insurances are going to offer reimbursements for Apple devices? None.

I am T1D and wouldn't use my Apple watch to action my insulin based on its blood sugar measurements. That's insane.

Apple isn't a medical device company. They are a health trends and insights company. There is a very specific difference here that is not clear to many laypeople. The latter is profits, the former is massive risk and liability. Apple nor its investors are interested.
 
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Incredible that we’re at a point now where people love this idea because Western society is incapable of controlling their sugar intake.
 
Shocking that this particular leadership group doesn’t realize that this optical technology notoriously misreads values in dark skinned individuals. Wonder why.

 
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