Why is my blood sugar higher in the morning than before I go to bed?

High blood sugar in the morning may be caused by the Somogyi effect, a condition also called “rebound hyperglycemia.” It also may be caused by dawn phenomenon, which is the end result of a combination of natural body changes.

Why is blood sugar lower at night than in the morning?

A person who takes insulin doesn’t eat a regular bedtime snack, and the person’s blood sugar level drops during the night. The person’s body responds to the low blood sugar by releasing hormones that raise the blood sugar level. This may cause a high blood sugar level in the early morning.

Why does my blood sugar rise after I wake up?

When your blood sugar drops, your body releases stored sugar — mainly from the liver — and overcompensates. If your blood sugar level drops in the middle of the night, this overproduction of sugar can cause a high level in the morning. This is called the Somogyi effect.

How to prevent high blood sugar in the morning?

Avoid carbohydrates at bedtime.

Why are my blood sugar levels so high in the morning?

Another cause of high morning blood sugar is the “dawn phenomenon.”. In the dawn phenomenon, your body releases hormones that trigger your liver to put out glucose while you sleep. If there is not enough insulin in the body to counteract this, then blood glucose levels rise during the night, resulting in a high reading in the morning.

What causes blood sugar to spike in the morning?

The Dawn Phenomenon refers to a rise in blood sugar that happens in the early morning and is caused by natural hormonal changes in the body.

What causes high blood glucose in the morning?

The most likely cause of high morning glucose is not taking an adequate dose of insulin at night, missing your evening diabetes medication or overeating carbohydrates at dinner or bedtime. This can be complicated by counter-regulatory hormones, which can rise in the early morning and make morning glucose tougher to treat.