My daughter has a friend that is 12 years old. She is Very overweight....over 300 lbs. I don't know exactly what she weighs because our scale doesn't go that high. She is tall, but very heavy. I have tried to get her guardian to put the girls on a low carb diet to no avail. She completely believes in the low fat, high carb diet.

I took the girls blood sugar after supper last night...about 1 hr after she ate and it was 130. I took a fasting blood sugar this morning and it was 155. I know this is too high for a fasting blood sugar. Her guardian is coming to pick her up in a while and I need to know how bad is this? Should I encourage her to take the girl to a doctor for a glucose tolerance test? I want to be sure before I alarm anyone.

I would greatly appreciate your advice.