My parents fed me exactly the same cereal and diet as they fed my two sisters who are NOT diabetic! My husbands parents let him eat so many sweets as a child that all of his teeth fell out and, again, he is NOT Diabetic. You can believe what you want to believe but no diet at all is responsible for triggering an autoimmune disease, simple as that. Not too sure about the stress thing, my consultant mentioned it but to be honest there is probably more than one trigger and I would be inclined to believe it is most definitely physiological and NOT anything to do with diet! Diagnosed with GD in 2010, Completely disappeared postpartum. Re-diagnosed December 2012 with type 1.5 diabetes, age 26, BMI 23 currently controlled by only Metformin, 500mg twice a day.