Argentine doctor Jorge Tartaglione explains how fasting glucose, post-meal readings and HbA1c can reveal rising diabetes risk , and why early lifestyle changes matter.
Jorge Tartaglione used an appearance on LN+ to make a simple point with important consequences: blood glucose is not just a number on a lab report, but a marker of how the body is handling energy. In the La Nación interview, the Argentine doctor said fasting glucose should stay below 100 mg/dl, and warned that results between 100 and 125 mg/dl indicate a warning zone often described as prediabetes.
That threshold is consistent with guidance from the Mayo Clinic, which says a fasting blood sugar reading of 100 to 125 mg/dl suggests prediabetes, while a result of 126 mg/dl or higher on repeat testing points to diabetes. The clinic also notes that haemoglobin A1c, the test Tartaglione referred to, shows average blood sugar over roughly the previous two to three months and is widely used to assess longer-term glucose control.
Tartaglione said the A1c test helps identify whether a person’s blood sugar has been elevated over time, even if an isolated reading can be explained away by a heavy meal the day before. He also said that a level between 140 and 200 mg/dl two hours after eating can indicate prediabetes, and he stressed that ignoring that stage carries risk. The Mayo Clinic likewise emphasises that early detection matters because lifestyle changes can help prevent or delay type 2 diabetes.
The doctor tied glucose control to everyday habits, especially physical activity, balanced eating and weight management. He described insulin as the mechanism that allows glucose to enter cells and argued that exercise is one of the most effective ways to improve that process. La Nación also reported that he mentioned metformin and tirzepatide among treatment options, while urging people not to panic but to ask for regular testing and understand their own numbers.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.





