An oral glucose tolerance test – also called OGTT – checks how your body processes sugar. Your results might show that you're at risk of getting type 2 diabetes, or that you already have it.

A normal oral glucose tolerance test (OGTT) is performed with 75 grams of glucose. ... Likewise, there are no reference ranges for expected glucose responses in different weight individuals.

People whose blood sugar is on the high end of the normal range may be at greater risk of brain shrinkage that occurs with aging and diseases such as dementia, according to new research published ...