Does eating too much the day before checking blood sugar affect blood draw the next day?

Patient's question:

I am very scared when this happens. I often have lower abdominal pain and don't know how to solve it, so I came here to consult. Please ask if eating too much the day before a blood glucose test will affect blood collection the next day.

Doctor's answer:

In your case, it might be diabetes. Diabetes is caused by damaged islet B cells or insulin resistance. The former is Type 1 diabetes, and the latter is Type 2 diabetes. The exact mechanism of diabetes onset is still unclear, and it cannot be cured clinically; the main goal is to control blood sugar. Currently, surgical treatment is not available. It is recommended to check fasting blood glucose and, if necessary, perform a hemoglobin A1c test before starting treatment.

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