Will drinking water last night and in the morning affect fasting blood sugar levels?
It is generally recommended to fast for at least 8 hours before undergoing a fasting blood glucose test, which not only includes food but also water intake. This is because even water can affect blood glucose level measurements by diluting plasma volume. Normally, fasting blood glucose should be between 3.9 and 6.1 mmol/L, and levels exceeding 7.0 mmol/L may indicate a risk of diabetes or hyperglycemia.
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Carbohydrates in food, once absorbed, affect blood glucose levels, and consuming large amounts of water can dilute plasma, leading to lower test results. Strict adherence to fasting requirements is crucial before a fasting blood glucose test. This not only helps obtain accurate blood glucose readings but also aids doctors in better assessing patients' health status.
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For those concerned about hypoglycemia, they can appropriately increase their diet the night before to avoid nocturnal hypoglycemia. Taking glucose-raising medications as prescribed, such as metformin tablets or gliclazide modified-release capsules, is also an effective preventive measure. This helps maintain energy levels during fasting.
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In daily life, a balanced diet is crucial for maintaining normal blood glucose levels. Avoid excessive intake of sweets and greasy foods to prevent adding burden to the body. A balanced diet not only helps control blood glucose but also benefits overall health. Maintaining good lifestyle and dietary habits is an important foundation for maintaining health. To accurately understand one's health status, it is recommended to follow doctors' advice for testing and dietary management.
