Yeah, it's pretty common. You can buy them for a reasonable amount and learn quite a bit: https://chemist2customer.com/freestyle-libre-2-sensor

Might, but as a non-diabetic your body self-regulate, so you'd usually see a large increase in blood sugars followed by a large drop as insulin blood levels increase and trigger its handling.

And because the sensor needle goes through the skin it must be replaced pretty regularly, and if it's not covered by insurance it's not exactly free (the link from the sibling indicates £57, that's per fortnight).

My diabetic colleague was super happy when they got one though, the "beep" of their checking their BAC is pretty funny and it's definitely more comfortable and sanitary than having to prick their finger every time, plus the full history view is useful as point check means there are dark holes between checks and you might not see some of the opportunities for improvements.

> because the sensor needle goes through the skin it must be replaced pretty regularly

I am an MRI radiographer and get patients to take these off for their scans.

According to the link below [1] they are good for 7 days. They aren’t cheap and removing them does cause some friction so I try tie the MRI scan up with a pending monitor change and quiz diabetic patients about them at booking.

Some have gone into the scanner by accident (patients not declaring them) and they seem to survive but I emphasise that the results might not be accurate afterwards.

[1] https://www.diabeticwarehouse.org/products/dexcom-g4-and-g5-...

The Freestyle ones aren't that accurate anyways. That's why my university hospital trys to avoid them for new patients

You might be interested to look into a calorie tracking app / cronometer. It's a bit of a slog as you need to (somewhat) accurately input your food intake, but even a week or so is enough to gain insight into your dietary habits (caloric intake, nutrients, vitamins, minerals).

The biggest benefit by far in my opinion is having the opportunity to learn how to listen to one's body again. Most of us aren't very good at recognizing the signals our bodies are sending us, from low blood sugar to adrenaline. Real-time monitors can really help people listen what those more subtle feelings might mean.

You absolutely can, but having a needle in you 24/7 isn't the most convenient thing, not to mention the cost when it's not covered by your health plan.

There's one theory which is that the most effective form of weight loss might be simply to always keep blood sugar below a certain level. Still just a theory, though.

It's possible that sometime in the next decade the Apple Watch might be able to monitor glucose levels non-invasively. However, it's extremely difficult technologically, so it's not clear Apple will succeed. (They seem to be working on it though.)

> not to mention the cost when it's not covered by your health plan.

You can buy something for 130$ or 70€.

Still I wouldn't bother, watching a YouTube video on sugar should be enough for everybody

There are non-medical versions of CGMs that are available from a wide variety of companies, primarily for those who are interested in monitoring their sports performance.

Technically, you still have to get a prescription to buy them, but the companies help you with that by connecting you to online doctors for the prescription. Oh, and they tend to cost more than if you had a medical CGM prescribed for you by your endocrinologist. I guess that's why they're so profitable for the companies selling them.