Everyone says it is is not. My diabeetes consultant Dr said there was nothing you could have done to prevent it... It just happens. But.... My experience over the last few months makes me think differently. In that I am 100% sure that if I had been on a LCHF diet 2 years ago I would not be diabetic now. Diagnosed T2 in sept 2013 then T1 in the honeymoon period in December 2013 aged 58 with a BMI of 22, I have gradually reduced my carb intake and upped my fat intake, until 5 months ago I started following Dr Bernstein's diabetic solution, taking no insulin or medication. Over the last 5 months my blood sugar levels have been very consistent around 5.0 pre breakfast and under 6.0 2hrs after meals, with no sign of any deterioration at all. This indicates (to me) that my insulin making beta cells are no longer degenerating. Thus I have my Auto immune system under control..... No longer (at the current time) is there any indication that any of my beta cells are degenerating. I am no worse now than 5 months ago (same diet, same weight). I understand that non diabetics have around 15 million beta cells. I guess I may have a few hundred, maybe a few thousand, maybe even a million.... My point being, I most certainly have less now than say a year before diagnosis. Had I have started a LCHF diet two years ago, before diagnosis, then surely I would not be diabetic now. This makes me conclude that T1 is avoidable, or at the very least delayable...... Just my observation. Is my logic wrong? Anyone else think the same?