• Guest - w'd love to know what you think about the forum! Take the 2025 Survey »

High blood sugars after not eating for 7 hours

Rev206

Member
Messages
12
Type of diabetes
Type 2
Treatment type
Tablets (oral)
I haven’t eaten anything for 7 hours and when I tested my blood sugars they were high at 8.1. Does anyone know why this would be? I haven’t been managing my diabetes well and have recently started trying to bring it back under control so wonder if my sugars are still high from before. I don’t normally miss meals and yesterday my pre lunch reading was 6.1 so I’m a bit confused!
 
Could be your body taking the opportunity of no food to dump excess sugar into your blood to it gets used rather than stored.
What time is the 7 hours from? i.e. did you have breakfast then nothing or nothing all day so far?
If you ate this morning what did you have?
 
Sorry just saw this was your first post so hello and welcome
@daisy1 will be along soon with the intro to low carb for blood sugar control.
 
@Rev206

Hello Rev and welcome to the Forum :) Here is the Basic Information we give to new members and I hope you will find it useful. Ask as many questions as you like and someone will help.


BASIC INFORMATION FOR NEW MEMBERS

Diabetes is the general term to describe people who have blood that is sweeter than normal. A number of different types of diabetes exist.

A diagnosis of diabetes tends to be a big shock for most of us. It’s far from the end of the world though and on this forum you'll find well over 235,000 people who are demonstrating this.

On the forum we have found that with the number of new people being diagnosed with diabetes each day, sometimes the NHS is not being able to give all the advice it would perhaps like to deliver - particularly with regards to people with type 2 diabetes.

The role of carbohydrate

Carbohydrates are a factor in diabetes because they ultimately break down into sugar (glucose) within our blood. We then need enough insulin to either convert the blood sugar into energy for our body, or to store the blood sugar as body fat.

If the amount of carbohydrate we take in is more than our body’s own (or injected) insulin can cope with, then our blood sugar will rise.

The bad news

Research indicates that raised blood sugar levels over a period of years can lead to organ damage, commonly referred to as diabetic complications.

The good news

People on the forum here have shown that there is plenty of opportunity to keep blood sugar levels from going too high. It’s a daily task but it’s within our reach and it’s well worth the effort.

Controlling your carbs

The info below is primarily aimed at people with type 2 diabetes, however, it may also be of benefit for other types of diabetes as well.

There are two approaches to controlling your carbs:
  • Reduce your carbohydrate intake
  • Choose ‘better’ carbohydrates
Reduce your carbohydrates

A large number of people on this forum have chosen to reduce the amount of carbohydrates they eat as they have found this to be an effective way of improving (lowering) their blood sugar levels.

The carbohydrates which tend to have the most pronounced effect on blood sugar levels tend to be starchy carbohydrates such as rice, pasta, bread, potatoes and similar root vegetables, flour based products (pastry, cakes, biscuits, battered food etc) and certain fruits.

Choosing better carbohydrates

The low glycaemic index diet is often favoured by healthcare professionals but some people with diabetes find that low GI does not help their blood sugar enough and may wish to cut out these foods altogether.

Read more on carbohydrates and diabetes.

Over 145,000 people have taken part in the Low Carb Program - a 10 week structured education course that is helping people lose weight and reduce medication dependency by explaining the science behind carbs, insulin and GI.

Eating what works for you

Different people respond differently to different types of food. What works for one person may not work so well for another. The best way to see which foods are working for you is to test your blood sugar with a glucose meter.

To be able to see what effect a particular type of food or meal has on your blood sugar is to do a test before the meal and then test after the meal. A test 2 hours after the meal gives a good idea of how your body has reacted to the meal.

The blood sugar ranges recommended by NICE are as follows:

Blood glucose ranges for type 2 diabetes
  • Before meals: 4 to 7 mmol/l
  • 2 hours after meals: under 8.5 mmol/l
Blood glucose ranges for type 1 diabetes (adults)
  • Before meals: 4 to 7 mmol/l
  • 2 hours after meals: under 9 mmol/l
Blood glucose ranges for type 1 diabetes (children)
  • Before meals: 4 to 8 mmol/l
  • 2 hours after meals: under 10 mmol/l
However, those that are able to, may wish to keep blood sugar levels below the NICE after meal targets.

Access to blood glucose test strips

The NICE guidelines suggest that people newly diagnosed with type 2 diabetes should be offered:
  • structured education to every person and/or their carer at and around the time of diagnosis, with annual reinforcement and review
  • self-monitoring of plasma glucose to a person newly diagnosed with type 2 diabetes only as an integral part of his or her self-management education

Therefore both structured education and self-monitoring of blood glucose should be offered to people with type 2 diabetes. Read more on getting access to blood glucose testing supplies.

You may also be interested to read questions to ask at a diabetic clinic.

Note: This post has been edited from Sue/Ken's post to include up to date information.
Take part in Diabetes.co.uk digital education programs and improve your understanding. Most of these are free.

  • Low Carb Program - it's made front-page news of the New Scientist and The Times. Developed with 20,000 people with type 2 diabetes; 96% of people who take part recommend it... find out why

  • Hypo Program - improve your understanding of hypos. There's a version for people with diabetes, parents/guardians of children with type 1, children with type 1 diabetes, teachers and HCPs.
 
This could be Liver Dump aka Dawn Phenomena. After a period without food, such as the hours we spend asleep or during time of fasting, the liver will dump glucose into the bloodstream to keep us going until we do eat.
 
I haven’t eaten anything for 7 hours and when I tested my blood sugars they were high at 8.1. Does anyone know why this would be? I haven’t been managing my diabetes well and have recently started trying to bring it back under control so wonder if my sugars are still high from before. I don’t normally miss meals and yesterday my pre lunch reading was 6.1 so I’m a bit confused!
Sounds to me as if you are a person, like me, who needs to avoid complete fasting over a long period. Do you check your fasting bg immediately after getting up? If I see a low fasting bg reading then I immediately eat a little cheese, as otherwise my liver will "helpfully" pass glucose into my blood stream. I am also trying to avoid going for more than 4 hours without a little something during the day. I carry a small pot of cheese strips for this purpose. Other people who also encounter this problem find just a hot drink with cream first thing is enough. I also eat a little cheese last thing at night in order to convince my liver it doesn't need to supplement my bg during the night. I choose cheese because it is high fat and low carb, and I seem to be able to digest it late at night. Once I tried chicken instead and it gave me indigestion.
 
Thank you everyone for your comments. I had breakfast this morning but didn’t have any lunch as I wasn’t in a place where food was available. I also find that my blood sugars are high in the morning so it’s interesting to know that something small, like a piece of cheese, might help them. Anything’s worth a try! I’ve been living in a hotel in Qatar for the last month as my husband’s working here and it’s been extremely difficult to eat low carb.
 
I’m the same as @Alexandra100, I eat breakfast as soon as I wake up as my blood sugar just creeps up and up if I don’t eat immediately. I also have a lowcarb high fat snack at bedtime, my snack of choice is a small handful of nuts.
 
Hey Rev206, welcome to the Forum! You have come to a great place if you are attempting to get yourself back on track....know from experience! Just remember that it is a marathon and not a sprint - it may take a bit to get things where you really want them, but each day press forward and making small tweaks can reap huge benefits....so be kind to yourself and enjoy the travel and try not to eat too much rice, pitas, and other high carb foods that you may be tempted to try....like falafel - made with chick peas - which I found out yesterday really surges the blood sugar, same with hummus.....eat lots of shish kabobs, olives, pickled cabbage, and lettuce salads! Blessings/L
 
I’ve been living in a hotel in Qatar for the last month as my husband’s working here and it’s been extremely difficult to eat low carb.
Are you still living in the hotel? That must be SO difficult. Maybe Rachox's nuts might be easier to organise than cheese? Don't they offer any plain roast meat? In our stereotypes of Arab countries they are forever roasting whole sheep and offering guests the eyeballs. I should think eyeballs are low carb! (No way I'm going to find out.)
 
I’ve been living in the hotel for a month and still have another 2 weeks left at least! When I’m cooking for myself it’s fine because I know exactly what to eat but here it’s so hard. There’s a buffet dinner every night but it’s always difficult to know what’s in everything and there are only so many plates of salad I can eat! I’m cutting down on the rice and avoiding pasta, potatoes and anything starchy as much as I can. I go to the gym every morning and that has helped with my lunchtime levels but after dinner they’re always too high still.

It’s interesting to know about the pre bedtime snacks. I’ll maybe try eating a few nuts as they’re always available. Maybe I should try carrying some with me just in case.
 
That’s really useful thank you. I’ve been eating loads of cashews! They’ve got almonds so I’ll stick to them in moderation until I go to the shops then I’ll buy one of the low carb options.
 
That’s really useful thank you. I’ve been eating loads of cashews! They’ve got almonds so I’ll stick to them in moderation until I go to the shops then I’ll buy one of the low carb options.
I am eating a lot of walnuts, since I found out they have about half the carbs of almonds. Peanuts and cashews, alas, have a serious carb content, but still not like Mars bars!
 
I’m doing an experiment to see if it works. This morning my bloods were 9.1 so tonight I’ll have a small snack and see if there’s any difference in the morning.
 
Back
Top