Is glucose reading 10.4 considered high just after eating?

Yes, a glucose reading of 10.4 mmol/L (millimoles per liter) just after eating is considered high and indicates hyperglycemia. Normal blood sugar levels for a person without diabetes should typically range between 4 and 7.8 mmol/L before meals and below 7.8 mmol/L two hours after meals.

After consuming a meal, the body breaks down carbohydrates into glucose, which is then absorbed into the bloodstream. In response, the pancreas releases insulin to help transport the glucose into cells for energy or storage. However, if the body's insulin production is insufficient or if the cells become insulin resistant, glucose can accumulate in the bloodstream, leading to high blood sugar levels.

A glucose reading of 10.4 mmol/L after eating suggests that your blood sugar levels are significantly elevated and require attention. If you are experiencing consistently high glucose levels, it's important to consult a healthcare professional for proper management and monitoring of your diabetes or prediabetes.