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" Question I have Type 2 diabetes, and five months ago I started on insulin in minimal doses, which were gradually increased.  Although I eat the same things and do the same amount of exercise, my blood glucose varies from 14 to 4mmol/l and I can&amp;#039;t explain why.  What&amp;#039;s the normal blood glucose I should be aiming for and why does mine fluctuate so widely?   Answer A &amp;#039;normal&amp;#039; blood glucose level is below 10mmol/l, though sometimes the doctor might want to try and keep it under 8mmol/l.  Fourteen isn&amp;#039;t a disaster, but it would be better if it never went higher than 10mmol/l.  Lots of things influence sugar levels, but primarily they are affected by the food you eat and the activities you undertake &amp;amp;#8211; all kinds of activities from walking to housework to exercise.  Although you say you broadly keep to the same diet and exercise, in reality both of these will fluctuate quite a lot.  One suggestion is to try to keep a more accurate food and exercise diary with specific times noted along with your blood sugar level.  Do this in as much detail as possible, eg every 30 minutes or so throughout the day, and do it for at least two weeks.  This will give you an objective record that you can examine for clues about what influences your blood sugar level. Yours sincerely The NetDoctor Medical Team   Other Qs &amp;amp; As A hot bath lowers my blood count Are my blood glucose levels normal? Best times to test for glucose Blood sugar: how often should I check it? Can chromium picolate control blood sugar? Definition of diabetes Diabetes or hypoglycaemia? Factors that make the blood sugar increase Hyperglycaemia or hypoglycaemia? I changed my medication and my blood sugar went up Infections and blood glucose Is a blood glucose level of 7.4mmol/l diabetes? Main symptoms of diabetes My blood sugar is high and I&amp;#039;m worried about diabetes Sugar levels What are the symptoms of diabetes? What is hyperlipidemia?   Last updated 03.04.2011 "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.netdoctor.co.uk/ask-the-expert/diabetes/a761/what8217s-a-normal-blood-glucose-level/>