Fasting Blood Sugar Level

The test used to check the blood sugar level after eight hours of fasting is called fasting blood sugar level. A fasting blood level between 70 to 100 mg/dL is considered normal, and levels between 100 to 125 mg/dL is considered as prediabetes. If two consecutive tests show levels higher than 125 mg/dL, then you have diabetes.

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Can you tell the reason for fasting blood sugar level higher than postprandial?

Query: Hi doctor, My fasting blood sugar is 130 to 135 over last four years. My postprandial sugar is between 90 to 110. Yes, my postprandial is less than my fasting sugar level. Usually, the reading will be taken after 1 hour 45 minutes or 2 hours after eating breakfast. I am unable to bring down the fast...  Read Full »

Dr. Krutika Ingle Karandikar

Answer: Hello, Welcome to I would like to tell you that different mechanism of our body act to control our fasting and postprandial sugars. Firstly, you are doing well with your blood sugars. The fasting sugar is slightly higher, but no issues. Secondly, you should take your medicine Glycomet (...  Read Full »

Why is postprandial less than fasting sugar?

Query: Hello doctor, My father's age is 80. My father's fasting sugar is 111 and PP is 83. Is it considered normal? Why is the PP less than fasting sugar? Please help us with your kind advice.  Read Full »

Dr. Krutika Ingle Karandikar

Answer: Hi, Welcome to Is he taking any medicines for lowering sugar? If not, the PP (postprandial) might be lower as it depends upon the calories taken in during breakfast and the amount of insulin produced by the body. Provided both are in the normal range and above 75 to 80, it does not m...  Read Full »

How can fasting blood sugar be more than postprandial in pregnancy?

Query: Hi doctor, My wife is with height 159 cm and having weight 72 kg. We checked her BSL in lab for fasting and BP a year back and both results were normal. Yesterday we again checked the reports and her reports are like fasting BSL 172 , urine: no sugar detected. After two hours of lunch FBL ...  Read Full »

Dr. Krutika Ingle Karandikar

Answer: Hello, Welcome to This is very possible. Ladies who develop gestational diabetes are more prone to develop diabetes in the near future. It is like a warning sign to start healthy lifestyle measures so that you can avoid developing diabetes. Currently your wife is having diabetes and s...  Read Full »

Kindly advice me regarding my diabetes status.

Query: Hi doctor, I had my first operation for the removal of uterus about 13 years back, and six years later, one ovary was removed. I am suffering from a cervical problem since 20 years, high BP since 10 years and diabetes since nine months. I am taking the following medicines: Pregabalin cap 75 mg per d...  Read Full »

Dr. Krutika Ingle Karandikar

Answer: Hello, Welcome to Please attach your reports to the query, so that I can guide you accordingly. Revert with more information to a diabetologist online -->  Read Full »

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