Thanks for the comments. I only put the sciencey bits and links to studies to show I'm not just making it up. "magnesium helps T2 diabetes" really needs links to studies to show this.
Background--> I did low carb from around 2011-2013. Then Keto, then had hypothyroidism diagnosed around end of 2013. Started eating too many carbs, got fatter. No one told me I had to reteach my body to use carbs! Can't remember exact dates.
Main thing LCHF did for me was to get to 10% ish body fat, and have abs. I worked out a lot, did cardio etc. I felt good for about a year, then it tapered off but there are many related things: psychological effect of feeling "ripped", eating meals at the same time and recording calories etc. There was consistency to my eating, sleeping, training. So it can't all be attributed to just "LOW CARBS".
But I was also skinny considering how strong I was, now I see why.. the body was breaking down muscle tissue to make glucose. After a while, hair loss/thinning, bad sleep, freezing hands, as described above. I would wake up lots per night, need to pee a lot, etc.
At the time, I wanted to keep blood sugar low, so I had a BG meter. At one stage I had a neck issue that caused nerve pinching and numb fingers, and before this was diagnosed someone said it may be diabetes, so I used the meter to check that (this is 5/6 years ago). It wasn't diabetes, it was nerve issues, possibly from low Thyroid.
I pulled the meter out about a month ago (maybe even 5-6 weeks, guess it was first week of Nov), after being ill, and I was regularly hitting 10-12 FBG (12 FBG ***!!!), and 10 after eating. This went on for a few weeks. I was pretty shocked. For 2 weeks I don't think FBG was below 8. According to interwebs, I HAD DIABETES. Well, thankfully I had read enough to know I could do something about it. Was quite an interesting time, I was initially super freaked. I think I'd basically been eating too few meals per day, and eating close to 1000 calorie meals, with too much fat, and too much bread (sandwiches) and pasta. Plus being sick.
Just from eating regular, small meals, and taking magnesium and some B vitamins, (and few other things listed above, like aspiring and Vit K.. but mainly Mag and B complex) it's now within normal range again. I also upped my Thyroid hormone (t3). I'm testing BG 5+ times a day, there are little strips all over my house. I could see over the course of 2 weeks, I watched the FBG drop from 10, to 8s, to 7s, to 6s, to 5s.
So I can see what affects me: I can handle root vegetables, roasted or boiled, and most fruits. Bananas I can't, they're not ripe in UK and so have too much starch. I can't handle pasta or bread or pizza, it spikes post meal BG and the next day's FBG. I can do 50-60grams of carbs per meal (4 meals a day), and stay within 7-7.5 postprandial, and quickly drops to 5.5.
I ate a snack earlier after work today of 150-200grams of 5% Fage greek yogurt, and 30-40 grams of bonne mamon strawberry jam (2 tablespoons), so around 25-30grams of sugars... and tested 30 mins later... was 5.6
The things I listed above are Thyroid, magnesium, salt, calcium, Vit D, potassium, all the B vitamins (biotin, niacinamide, P5P, Thiamine etc), succinic acid, all held glucose clearance. Magnesium is the best for me, just having some at night before bed improves FBG.