The oral glucose tolerance test (OGTT), or glucose tolerance test is a blood test used (not routinely however) to diagnose diabetes, and gestational diabetes. Information in regard to reliability of the oral glucose tolerance test is important, as some conditions (common cold), or food (caffeine), or lifestyle habits (smoking) may alter the results of the oral glucose tolerance test.
Food can be powerful in preventing and reversing diabetes. However, dietary approaches have changed as we have learned more about the disease. The traditional approach to diabetes focuses on limiting refined sugars and foods that release sugars during digestion-starches, breads, fruits, etc. With carbohydrates reduced, the diet may contain an unhealthful amount of fat and protein. Therefore, diabetes experts have taken care to limit fats- especially saturated fats that can raise cholesterol levels, and to limit protein for people with impaired kidney function. The new approach focuses more attention on fat. Fat is a problem for people with diabetes. The more fat there is in the diet, the harder time insulin has in getting glucose into the cells. Conversely, minimizing fat intake and reducing body fat help insulin do its job much better. Newer treatment programs drastically reduce meats, high-fat dairy products, and oils.[46,47,48,49,50] At the same time, they increase grains, legumes, fruits, and vegetables. The study found that patients on oral medications and patients on insulin were able to get off of their medications after some days on a near-vegetarian diet and exercise program. During 2 and 3-year follow-ups, most people with diabetes treated with this regimen have retained their gains. The dietary changes are simple, but profound, and they work.[51,52,53]
You may feel fine, but that is no guarantee that your blood sugar levels are in the target range. Remember, diabetic complications do not appear right away. And complications may develop even when the blood sugar is only slightly elevated. Regular blood sugar monitoring can help you keep your blood sugars in control and prevent serious damage to your eyes, kidneys and nerves. If your sugar levels are out of line, consult your doctor.
Diabetes can cause serious health problems, such as heart disease, stroke, and eye and foot problems. Prediabetes also can cause health problems. The good news is that type 2 diabetes can be delayed or even prevented. The longer you have diabetes, the more likely you are to develop health problems, so delaying diabetes by even a few years will benefit your health. You can help prevent or delay type 2 diabetes by losing a modest amount of weight by following a reduced-calorie eating plan and being physically active most days of the week. Ask your doctor if you should take the diabetes drug metformin to help prevent or delay type 2 diabetes.1
Even if you have not been told that you have prediabetes, you could be worried about it, since 90% of the people with prediabetes are unaware that they have it. You are at higher risk if you are over 45 years old, do not get much exercise, have a family history of diabetes, or are African American, Native American, Hispanic/Latino, or Pacific Islander.