It's recently become a thing on media platforms such as Tik Tok, Youtube, and instagram where non-diabetics use cgms (continuous glucose monitoring systems) to watch their blood sugar. These can be for a variety of reasons. For example... - Wanting to experiment - Loose weight - pre-diabetic - on the cusp of being pre-diabetic - fitness - wearing it for diabetic kids to be more ok with trying out medical device (but I doubt who is reading this right now is a parent since this is a kids website.) - other medical issue that requires keeping track of BG Many people think it's just fine because you are exploring your health and there is a good supply of it or think that your average diabetic can still use this technology. Obviously some of these reasons make perfect sense as to why you are getting one, such as pre-diabetes, on the cusp of developing it, you have another medical issue, or trying to help kids feel more comfortable, but many of the other reasons aren't quite right. I need to do more research into this topic but currently BG has almost nothing to do with weight. Many diabetics (especially in the USA) struggle to get the insurance needed for the actual technology and these companies are handing them out like a luxury to anyone. Not to mention the technology is made so diabetics themselves cannot use it. These companies take existing cgms (such as dexcom [the one you need a prescription and is hard to get your hands on] and libre cgms) and make a new app that can connect. When someone with a medical issue goes to check on a cgm they are usually concerned because they feel a variety of symptoms. When someone without any good reason goes to check they are looking to see how much their regular-human BG "spiked." The difference between the words "my BG spiked" between these 2 groups are also quite different. Those without diabetes are going "it went up by 1.0, 2.0, 3.0 mmol/L" while diabetics are going "I went up by 10.0 mmol/L." Main issue is when you are using devices where they use dexcom. Libre you can just walk in and buy so it's a lot better. Dexcom needs prescription + good insurance which can be hard to come by depending where you are. If you are really that concerned with your BG you can go in and get some blood work done monthly or annually to get your A1C checked rather than just checking your current BG every 5 minutes. If you are spiking after you eat, it's completely normal, if you drop a bit after you excercise it's normal. Not everyone actually needs one to survive or be diagnosed with something.
(Please note that to go from mmol/L to mg/dl you have to multiply by 18!) And remember, this is my personal opinion, everyone has different views on stuff like this. Plus there are MANY different scenarios. I just covered some of the more popular ones.