Sudden blood sugar spike symptoms11/23/2023 ![]() ![]() Why? By that time rapid-acting analog insulin has reached its maximum effect (as opposed to normal insulin that not only takes longer to have an effect but also acts longer.) By the way, the blood sugar reminder in the mySugr app is a great way to check your glucose after a meal. Obviously, check your levels first meaning at least 90 minutes after a meal. How to deal with high postprandial blood sugar levels Other studies(2) have revealed that a sharp increase in glucose after eating may influence the occurrence of resulting complications such as diabetic retinopathy. As long as glucose remains unchecked after eating, major fluctuations can go unnoticed. By that time blood sugar is again within the normal range yet, in the meantime, a huge rise in blood sugar may have gone undetected and remained high during a long period. Most people with diabetes do check their blood sugar before a meal but not afterward or they leave it until the next mealtime. Studies have shown that postprandial blood sugar levels are significant for HbA1c, so even if glucose spikes after eating are only brief, they still have the potential to raise HbA1c over the course of the day(1). In the past, postprandial blood sugar didn’t get the attention it deserved but thankfully that has changed. Also, their blood sugar levels typically don't climb as high as people with diabetes because insulin is immediately delivered into their circulatory system while eating. ![]() Also, their blood sugar levels typically don't climb as high as people with diabetes because insulin is immediately delivered into their circulatory system while eating.įor people without diabetes, their blood sugar returns to near normal range about 1-2 hours after eating as a result of the effects of insulin. However, these are just approximate guidelines as PPG (postprandial glucose) depends on several factors, such as the type of food consumed.įor people without diabetes, their blood sugar returns to near normal range about 1-2 hours after eating as a result of the effects of insulin. Usually, blood sugar starts to rise 10-15 minutes after a meal and reaches its peak after an hour. So the opposite, namely before a meal, is called preprandial. Quite a mouthful, isn’t it? Apart from that diabetic tongue twister, few people with diabetes actually know how important it is.īlood sugar after a meal is called postprandial blood sugar. / Postprandial Blood Glucose - Why it’s important after eating.But, as you can see in the illustration below, there are no clear-cut borders between normal blood sugar levels and too high or too low blood sugar levels. Such high levels tend to be uncommon in type 2 diabetes.īlood sugar levels below 3.3 mmol/l (60 mg/dl) are considered to be too low. If type 1 diabetes is left untreated, blood sugar levels can increase to over 27.8 mmol/l (500 mg/dl). Without the effect of insulin, the organs can't make good use of the sugar in the blood, so the sugar builds up. These high blood sugar levels mainly occur if there isn't enough insulin or the insulin doesn't work properly. If someone has readings over 7.8 mmol/l (140 mg/dl), they are considered to have hyperglycemia. It describes the amount of a certain substance per liter. ![]() “Millimoles per liter” (mmol/l) is the unit that blood sugar is measured in. This is equivalent to a blood sugar concentration of between 3.3 and 7.8 mmol/l. Between around 60 and 140 milligrams of sugar per deciliter of blood (mg/dl) is considered to be healthy. Slight fluctuations in blood sugar levels are completely normal, and also happen every day in people who don’t have diabetes, in response to the food they eat. ![]() When is blood sugar considered to be too high or too low? ![]()
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