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High blood glucose

High blood glucose

What actually counts as “high blood glucose” and what it the reason for it?

Hyperglycemia is when your blood glucose levels is too high. This is defined as above 7 mmol/l before a meal, and above 8.5 mmol/l two hours after a meal. There are several reasons for why this could happen;

  • Eating more carbohydrates than your body and/or medication can cope with
  • Missing to take your medication
  • Being ill or stressed


High blood glucose symptoms

Feeling thirsty, increased urination, headaches and being tired are all potential symptoms of high blood glucose.


If your blood glucose is only temporarily high there’s no need to take any action, but if it stays high then it’s important to drink lots of sugar free fluids, if you are on insulin you may have to take an extra dose. Contact your diabetes team for support.

If high blood glucose is a regular occurrence for you the contact your diabetes team for a review.

High blood glucose can be prevented by taking the right dose of medication at the right time, but also by knowing what you eat and how food affects you. If have type 2 diabetes then keeping to low glycemic foods is key. Betavivo oat cereal is a low GI cereal that reduces the blood glucose peaks after meals, helping you avoid high blood glucose.