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Should sugar raise blood sugar levels?

gaz1971

Well-Known Member
Messages
59
A daft question it may seem but Im finding that sugar doesnt raise my blood sugar levels at all, yet things Ive been told to eat that are good, such as rice or pasta, send my blood sugar levels through the roof. Im confused, any help appreciated
 
Hi gaz and welcome to the forum Normally sugar raises your BG levels as do other carbohydrates. How long after eating sugar have you been testing? I am wondering if some basic information may help you, not knowing for how long you have had diabetes. Go ahead and ask as many questions as you need to and someone will be able to help you.

 
Hi daisy and thanks for the reply. I have had type 2 since 2001 and thought I had a fair grasp of what was good and bad.

Im also not sure about the advice I have had from my doctor as I was always told that 2 hrs after a meal it was normal for my sugar levels to reach 14 and then start to drop, but after reading your post it seems it shouldnt go above 8.5.
 
I'm sorry but I don't agree with your doctor at all. Although the NICE guidelines give 8.5 as an after meal level, this a maximum and you should aim for lower levels than this if possible. At 2 hours after meals, you should have a similar level to your before meal level. If it's not around the same level then you need to adapt what you eat to achieve this result.
 
Well, I guess GI is wrong then. Or rather, things are more complicated then the brilliant minds that came up with GI would want to you think.

To address your original question, there are a few things commonly referred to as "sugar" - sucrose (table sugar - bonded glucose-fructose pairs), glucose/dextrose, fructose and a few more. Importantly, fructose is metabolised differently from glucose and will not increase your blood sugar very much*; starchy carbohydrates (pasta, bread, etc), on the other hand consists of long glucose chains. So, at the end of the day, starchy carbohydrates have twice as much BG-raising carbohydrates per unit mass.

In my experience that is quite true (had to half my sugar intake for my exercise when I switched from orange juice to pure glucose). Another thing that might contribute to this effect is that you are (hopefully) consuming much less sugar in one session than starchy carbohydrates.

Im also not sure about the advice I have had from my doctor as I was always told that 2 hrs after a meal it was normal for my sugar levels to reach 14 and then start to drop, but after reading your post it seems it shouldnt go above 8.5.
Somewhat cynically, I think that both statements are correct - BG should be less than 8.5 mmol/l after a meal to reduce the risk of complications (I aim for <6.5 mmol/l because that's easy if you are on insulin) but I think I remember having read that only 20% of diabetics actually achieve this.

* For this reason fructose used to be recommended for diabetics although I think that consensus now is that things are little bit more complicated than that, and that a high-fructose intake may actually be harmful.
 
Its not just my GP, its all the GP's I have seen and the specialists at the local Diabetes clinic have all told me a reading of 14 after a meal is normal and its ok providing it doesnt stay there for long. Basically, everything Ive been told seems to be wrong! I was only having my yearly review at the doctors a couple of weeks ago and was asked what my blood sugar levels were at after meals etc and was told that things were spot on!
 
I like to keep my sugar levels after eating right down, so I always do some exercise about 45 minutes - one hour after eating. The 2-hour test in the morning usually comes in at about my fasting level or just above. When I was diagnosed it was coming in at around 8.5 mmol/L which I felt was too high.

The Diabetic Nurse gave me various leaflets after I was diagnosed which said eat 'starchy' food with each meal. The lists included pasta, rice and potatoes.

I had already come to this forum as I had over a week to wait for my first appointment and had read up on sugar level targets and had decided what to do about my diet, so basically didn't really pay much attention to the 'starchy' food talk. I don't touch pasta, rice or potatoes. I have porridge for breakfast with a tiny bit of fruit sugar, eat pitta breads with lunch and have corn crackers with my meal in the evening.

When I go to the doctor we never discuss my diet. She can see that I've lost weight, my bloods levels are down and that I look healthy. Her attitude is the lower I can get my levels without any medication the better. I don't go and see the Diabetic Nurse any more. She told me back in September that she didn't need to see me again which is fine by me because we didn't really take to each at all.

Personally I would not be happy with the levels your doctors say are ok, but I admit that not being on medication I'm not 100% sure about control with meds. I'd be curious to know what your Hb1Ac is?
 
 
Well this has been an eye opener. I cant even grasp how little I would have to eat in order to stop my glucose levels going over 8.5. Ive just eaten a handful of bran flakes and my levels have gone to 9!
I was at 5 when I woke up
 
gaz1971 said:
Well this has been an eye opener. I cant even grasp how little I would have to eat in order to stop my glucose levels going over 8.5. Ive just eaten a handful of bran flakes and my levels have gone to 9!
I was at 5 when I woke up

Gaz, you don't have to eat "little" - you just eat more non-carb foods, such as meat, fish, cheese, eggs, non-carby vegetables, lower-carb crackers such as Ryvita or oatcakes (5g carb per biscuit).

I usually follow a very low carb diet, because I need to lose weight (Viv's Modified Atkins Diet, a sticky thread on the Low-carb Diet part of the forum). It's not suitable for everyone, particularly if you don't want to cut your carbs down so low, but it's worth a read just for the list of low-carb foods.

Today, for instance, I've had an omelette for breakfast; I shall have a big tuna salad for lunch; and (probably) 4 sausages (97% meat) with lots of cauliflower and broccoli for supper, served with butter and mayonnaise (I'm a mayo addict! :crazy: ). I'm never hungry. I snack on cheese, nuts and an occasional apple. Apples don't affect my BGs much.

On this diet my last HbA1c was 5.2 - though I've never been very high, because I was caught early. I'm Type 2.

Testing is the secret, to find out how you react to different foods. For instance, I've found that I can eat a sandwich made with 2 slices of Tesco's Wholemeal Multigrain bread (filling eg chicken salad) without upping my BGs too much. I can also eat a cereal called Lizi's Granola (about a 30g portion) without doing too much harm.

Low-carb can be very varied and enjoyable. Have a look at the low-carb recipe section!

Viv 8)
 
The GPs who say a reading of up to 14 peak after a meal is OK are wrong. Just look at the various excellent Diabetes papers on the NHS and NICE websites, many targetted at GPs, and you will find some very sensible guidelines and no way is 14 acceptable.
 


And 80% of diabetics develop complications, ironic dont you think?


Regardless of what your doctor tells you Gaz, I would try to keep your bg levels as low as is comfortably possible and that means more meds or fewer carbs, take your choice or look forward to becoming one of the 80% :cry:
 
Well I will be having a word with the GP thats for sure. What alternatives are there to Metformin and Gliclazide? Im on the max dose of Metformin and take 1 80mg Gliclazide, twice a day

Im quite annoyed by this, I have been following this advice since I was diagnosed back in 2001 and every doctor I have seen has told me the same 14 is ok after a meal and now I find out its wrong advice.
 
I have retired to the Philippines now. I was diagnosed as T2 about 2 years ago. Picked up by an annual blood test. However the point I am making is my doctor, a Filipina clearly says 8 maximum, 2 hours after food. So the figure seems to be fairly universal. Always remember that high glucose levels cause the unpleasant and dangerous, effects that can occur.
 
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