Wow, I'm really surprised that this happened. I get large ketones when I have less than 50g carbs per day, but was under the impression that it was all fine if you were still having basal insulin and your BG was normal - I've certainly never had any symptoms from it. People on the Atkins diet (non-D) actually buy ketostix as ketones are desirable - any time your body burns fat for energy, you make ketones, so they're the hallmark for people who want to see weight loss. I'm not really LOW low carb atm, but about 50-100g per day which is about a quarter to a half of what I was having when eating a vegetarian diet with lots of chocolate p). I'm feeling good on it and my weight is stable but exercise seems to be having more of an impact on my musculature, I have been running etc. for quite a while, but never had visible abs until now - I'm at the upper end of the healthy BMI range (23) but have visible muscles all over, D is under better control, and I'm feeling good. Not advocating it for children, but a fairly low carb diet can help some adults with D for sure. There's just less room for error. Now most of my highs and lows are basal-induced, whereas before I had all the ones from basal problems mixed with ones from iffy boluses.