What is the normal blood sugar level after lunch

For normal people, blood sugar levels will rise after lunch, and it will take about 3 hours after a meal for blood sugar levels to return to normal. If you want to maintain your blood sugar within a normal range, you need to pay attention to a regular diet, control the amount of staple food and oil at each meal, and do appropriate exercise after meals. What is considered normal blood sugar? The normal fasting and postprandial blood sugar values ​​for ordinary people and pregnant women can be referred to as follows.

1. Normal blood sugar levels

1. Normal fasting blood sugar

Generally, the fasting whole blood glucose level is 3.9-6.1 mmol/L (70-110 mg/dL), and the plasma glucose level is 3.9-6.9 mmol/L (70-125 mg/dL).

Fasting whole blood glucose ≥6.7 mmol/L (120 mg/dL) and plasma glucose ≥7.8 mmol/L (140 mg/dL) repeated twice can be diagnosed as diabetes.

When the fasting whole blood glucose is above 5.6 mmol/L (100 mg/dL) and the plasma glucose is above 6.4 mmol/L (115 mg/dL), a glucose tolerance test should be done.

When fasting whole blood glucose exceeds 11.1 mmol/L (200 mg/dL), it means that insulin secretion is very low or absent. Therefore, when fasting blood sugar increases significantly, diabetes can be diagnosed without other tests.

1 hour after meal: blood sugar 6.7-9.4 mmol/L. The maximum value does not exceed 11.1mmol/L (200mg/dl).

2 hours after meal: blood sugar ≤7.8 mmol/l.

3 hours after meal: After the third hour, the urine returned to normal and each urine sugar was negative.

2. Normal blood sugar levels for pregnant women

Pregnant women should not exceed 5.1mmol/L on a fasting basis.

One hour after meal for pregnant women: The blood sugar level one hour after meal is generally used to detect diabetes in pregnant women. Authoritative data show that the normal blood sugar level for pregnant women should not exceed 10.0mmol/L one hour after meal.

2 hours after a meal for pregnant women: The normal blood sugar level after a meal is generally not allowed to exceed 11.1mmol/L, and the normal blood sugar level for pregnant women 2 hours after a meal is not allowed to exceed 8.5mmol/L.

2. How to keep blood sugar stable after meals

1. Control the total carbohydrate intake. The food categories should be diversified, but the staple food should be reduced when eating potatoes, sweet potatoes, yams, and fruits.

2. Strictly control refined rice and refined flour. Such as white bread, white rice, white steamed buns, etc., it is best not to exceed 1/3 of the staple food every day, and eat less sticky starch foods such as glutinous rice, rice cakes, Yuanxiao, and rice dumplings. Replace white rice and flour with whole grains, beans and potatoes, or mix them with white rice and flour. Soybeans, black beans and soy products are not grains, they can only replace meat; while starchy beans such as red beans, mung beans, kidney beans, etc. can partially replace staple foods.