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Apples

charon

Well-Known Member
Messages
201
Type of diabetes
Treatment type
Diet only
Had two Braeburn apples today with some walnuts. Felt odd so tested about half an hour later and I had gone from 5.0 to 7.1. Not drastic but surprising. A couple of hours later I was back down to 5.2 again (seems to be my base level now).
Also odd was that my hands and lower legs felt tingly, never noticed that before but may have happened.

Is this to be expected from apples?
Also surprised at how quickly it happened.
I tend to eat a lot of apples but usually one at a time. Think I might have missed spikes because the level has come down a couple of hours later - or maybe it doesn't spike as much if I have them with a meal.


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Also wonder how non-diabetics react. I've read that you should never go above about 5.0 but also that you can spike by 2-3 but come back down quickly, within an hour.
In fact if you look for blood sugar on Wikipedia there is a nice graph of bg levels throughout the day with starchy and sugary meals showing it rise at fall.
Looks like what happened to me is expected and 2 apples isn't a good idea.


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I thought apples were one of the fruit not to eat. The only way I eat them is when I grate half an apple into homemade coleslaw. But then that has loads of mayo in too.
 
most fruits seem to work out around 10g sugars/100g, so I take them into account then calculating a mealtime bolus if I'm going to have an apple or something for dessert. Berries are generally lower according to my carb counting books.

I used to eat masses of fruit, that has now been somewhat restricted since my diagnosis, but apples will are still my favourite.
 
charon said:
Had two Braeburn apples today with some walnuts. Felt odd so tested about half an hour later and I had gone from 5.0 to 7.1. Not drastic but surprising. A couple of hours later I was back down to 5.2 again (seems to be my base level now).
Also odd was that my hands and lower legs felt tingly, never noticed that before but may have happened.

Is this to be expected from apples?
Also surprised at how quickly it happened.
I tend to eat a lot of apples but usually one at a time. Think I might have missed spikes because the level has come down a couple of hours later - or maybe it doesn't spike as much if I have them with a meal.


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Hi Charon, I am classified as 'resolved' although I suffer from delayed insulin secretion but be back to normal within 2 hours and I can still spike high at meals times ( I spiked by about 3 points on three occasions on Friday which is typical for me), so I may not be the best person to comment. I have also suffered severe itching from about the time I was originally diagnosed (although the two have not been officially linked) and am on antihistamines permanently.

I wouldn't have thought it likely that a bG rise from 5-7 would result in the other symptoms you mentioned. Some people would regard that as a 'huge' jump and others will regard it as normal. It all depends on individuals own targets and beliefs. Similarly, some people relate everything that happens to their diabetes.

I ran a test yesterday to compare the effect of fruit (banana), palm sugar (unrefined), refined sugar and a biscuit. The fruit came out the best even though it contained 14g sugar versus 3-10g in the others (lowest spike then back to where it had been). Refined sugar was (surprise! surprise!) by far the worst as that spiked much higher, took longer to come down and carried on going down. The unrefined sugar and biscuit were about the same and mid-way between the other two foods but came down to normal like the fruit (they were both probably helped by other ingredients slowing release). My meal spikes are also significantly lower than they were when the period between eating fruit and having the meal was longer than 1-2 hours. We all have our individual beliefs, and my belief through measurement is that phase-1 insulin release is based upon the previous meal and it seems to work that way for me, even if it turns out to be 'smoke and mirrors'! :lol:

As far as I am concerned, I will continue to eat fruit as a snack, in spite of the spiking, as there's lot of goodness in terms of vitamins, minerals and fibre and anything that reduces meal spikes is fine by me.
 
Thanks gezzathorpe.
What were the actual values and how long did it take to come down.
I would have expected the sugar to come down more quickly than the banana but have not tested either.

Think my problem with the apples was that I had not eating anything for several hours. After a meal is probably ok and will stick to a single apple.

Bit surprised about meal spikes being greater shortly after eating sugar but I see that too. Takes me a while to get things back under control after being "bad".


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Charon, an apple can contain 15-20g sugar depending on size, variety, ripeness etc. I know Braeburns aren't that sweet but if you consider that a teaspoon of sugar is 5g you could have ingested the equivalent of 5-6 teaspoons of sugar. OK…not the same thing because there's fibre and so on, but it's still sugar into the bloodstream and naturally your BG will rise in that case, as it will for anyone. Your numbers came down rather quickly. Going from 5 to 7 and back to 5 again is well out of the danger zone so I doubt it caused you any harm.


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Thanks.
Not too worried about it, just surprised.
Not going to have 2 apples on their own again. I often have one after a meal and it's not a problem. I had 3 and went up to 8.7, think that's probably in line with this.
Was more surprised about how quickly it happened as I don't usually test that soon after eating and.could be missing spikes like this - again probably doesn't matter too much if it comes down quickly just like to know what's going on.

Pity the continuous testing widgets don't work. Shouldn't be difficult to get something to stick inside you and send wireless readings to a server.


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That's the thing about testing, it becomes compulsive. I'm only just brave enough to test one hour after a meal and of course the number is going to be higher than at 2 hours, so you need to brace yourself and expect to see higher numbers. It can be a bit of an emotional roller coaster too.


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I though 2 hours after the start of a meal was meant to be the peak but I guess it depends on the GI. Might have to go to two postprandial tests.


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charon said:
Thanks gezzathorpe.
What were the actual values and how long did it take to come down.
I would have expected the sugar to come down more quickly than the banana but have not tested either.

Think my problem with the apples was that I had not eating anything for several hours. After a meal is probably ok and will stick to a single apple.

Bit surprised about meal spikes being greater shortly after eating sugar but I see that too. Takes me a while to get things back under control after being "bad".


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Charon, what I said or meant to say was that my meal spikes were all much LOWER after eating fruit an hour or so before than they were previously when the gaps between food were much longer. They are all down by at least 1.0 or more.

Here's a chart with the figures you requested ...
hvjjOURKedwhpg-EfeJdLKbdjAVq7NYwhGrAdI24sY0=w550-h300-p-no


And here is a chart of a whole day of eating. The yellow BOXES represent fruit sugar quantities (14g = banana on its own, 17g = orange on its own,and 27g = tomato with evening meal).The two yellow CIRCLES represent the sugar quantities in ordinary meals without fruit. Note, for example, the spikes in the non-fruit meals versus the effect of eating a banana followed by an orange one hour later. The evening meal was a once off massive fry-up (not typical)!!
u-YcsebS6AmDQNjszQ4y89wgyJ4lQ2pfagGuowJJYIk=w550-h350-p-no
 
I'm confused! :lol:

I read one of the earlier Newcastle studies that a protein snack 2 hours before breakfast reduced pst prandial BGs. It was 75g yogurt and 30g soya beans. Hardly appetising, is it?

Another study in Japan showed that eating vegetables first and then the rest of the meal produced lower BG peaks in both diabetic and normoglycaemic groups. I also noticed in that study that the non diabetics were spiking into the 7s and 8s at times, although the diabetic group's figures were higher. You'll have to google those yourself, I don't have the links. I tried the vegetables idea myself but I can't say I noticed any change in the expected readings.

I'm in two minds about experimenting with eating between meals. Doesn't the pancreas store insulin in advance? And if possibly you aren't making enough or need more to get your cells to take in the glucose, isn't there the risk that you can deplete your stores and end up with a higher BG after your meal? On the other hand, if I did fancy an apple, would it spike me too high after a meal, or would I stay on a more even keel if ate it halfway between meals? The only way to find out would be to test, but you'd have to be pretty confident about your expected BG numbers for the meal without the apple afterwards.




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Thanks for sharing that Gezzathorpe, very interesting.
I'm guessing that the peaks one hour after eating is because that is when you tested.

Bit surprised how little effect the bananas have. Haven't tried one yet but it's planned for later.

Does look like 2 hours after a meal is getting towards recovery time.

I think I'm probably making a mistake in having too long between meals - but that's what I've always done, just now they are smaller and not carb/sugar based. Could be why I've stopped getting reading in the 4's.
I need to change this because I need to stop losing weight soon.

janeecee
Can you find meals that don't affect your BG much? If I stick to bacon + eggs and meat + greens I am pretty stable and any variations are due to anything I add.
 
charon said:
Thanks for sharing that Gezzathorpe, very interesting.
I'm guessing that the peaks one hour after eating is because that is when you tested.

Bit surprised how little effect the bananas have. Haven't tried one yet but it's planned for later.

Does look like 2 hours after a meal is getting towards recovery time.

I think I'm probably making a mistake in having too long between meals - but that's what I've always done, just now they are smaller and not carb/sugar based. Could be why I've stopped getting reading in the 4's.
I need to change this because I need to stop losing weight soon.

janeecee
Can you find meals that don't affect your BG much? If I stick to bacon + eggs and meat + greens I am pretty stable and any variations are due to anything I add.

Your weight loss and higher bGs are probably due to your using glycogen stores and fat reserves and your body is deciding what your bG levels should be rather than you trying to control it with your diet. I have found that my bGs run higher but are far more stable when I have not eaten for a long period and I assume that is when I am using stored glycogen. This bG level is the one I think is 'normal' as I am not twiddling with it by eating!

I don't quite understand why so many people are trying to avoid spikes since it is perfectly normal for non-diabetics to spike. Insulin release is not a carefully measured amount second by second, but rather comes in bursts, so fluctuations, or 'mini' peaks and troughs occur as the bGs rises. So, insulin secretion must be preceded by a rise in bGs. How and why would anyone strive to avoid that? If bGs remained completely flat, then we would be using up all ingested carbs and none of it would be stored as glycogen or fat.

The fruit sugar lifts my bG by about 0.5 and then the peak in my subsequent meal is much lower than previously recorded. It is as though my phase-1 insulin release is based upon my previous meal, in my case a piece of fruit (27g carbs, 14g natural sugars), which appears to be supported by the theory that phase-1 insulin secretion is based on the previous meal. A meal of 33g carbs and 9g refined sugar gives me a much sharper peak. If I leave a long period between meals, then the phase-1 insulin release would be based upon my bGs during that preceding period. I don't know how long that previous period is, but 1-1.5 hours seems to be about it for me. So, I would suggest you try little and often and see how your previous meal affects the subsequent one. By, the way, I don't eat unless I feel the need. But I don't leave it too long as I can catch myself out with 'stage 1 hypos'.

I wanted to point out that my OGTT test (75g glucose) two months ago raised my bG by 10.7. However, the evening fry up of 75g carbs with 27g fruit sugars (from the tomato) raised my bG by 2.4! One difference is fruit sugar (fructose?) versus 'added sugar' which I assume would be refined and that seems to be the pattern for the whole day. The 'value' of the sugar quantity and type seems to be more important than the value of the total carbs! With similar amounts of carbs and lower amounts of 'added sugar' I peak higher, which is why I eat little and often and eat fruit as a snack.

So, I am able to control my bGs whilst maintaining 200g carbs per day spread across the day with 20-30g carbs at a time provided I eat fruit regularly between breakfast, lunch and dinner to maintain the little and often. That way, there is always a previous meal from which insulin secretion can be based rather than relying on bG levels from a long period of not eating. I am also going to include fruit in some shape or form in every meal, whilst keeping refined sugar as low as possible, even if it raises the total carbs,and see what happens then.
 
Thanks.
I'm not too worried about spikes but like to know what causes them and be confident that it's going to come down quickly.
I was diagnosed 3 months ago and am still experimenting. My first aim was to have some control which I think I have now.
There is an article saying that non-diabetics never go above about 5.0 but looking at others I suspect that meant that they come down to 5 after a couple of hours

I have few meals and dinner is probably bigger than it should be - very few carbs though.
I'm planning to go to a diet more like yours - and I think early on I was doing that. Then I was getting a base of around 4.5, now it seems to be more 5-5.5. I was a lot less sensitive to what I ate then and I thought that I was losing some control but maybe it's just that I need to eat more often and smaller quantities. I have a feeling that if I do that t won't matter so much what I eat.
 
charon said:
Thanks.
I'm not too worried about spikes but like to know what causes them and be confident that it's going to come down quickly.
I was diagnosed 3 months ago and am still experimenting. My first aim was to have some control which I think I have now.
There is an article saying that non-diabetics never go above about 5.0 but looking at others I suspect that meant that they come down to 5 after a couple of hours

I have few meals and dinner is probably bigger than it should be - very few carbs though.
I'm planning to go to a diet more like yours - and I think early on I was doing that. Then I was getting a base of around 4.5, now it seems to be more 5-5.5. I was a lot less sensitive to what I ate then and I thought that I was losing some control but maybe it's just that I need to eat more often and smaller quantities. I have a feeling that if I do that t won't matter so much what I eat.

It should be below 5.0 after 2 hours. Your 5-5.5 is like mine now. That is my pattern after waking up slightly lower and not eating for three hours or so. Once I start eating, then it starts moving up and down of course. I don't force down a breakfast if I don't feel like one. There's no point in eating when my bGs are steady in the early 5s for three hours!

It's odd that many of us seem to have our largest meal in the evening when we probably could do with the energy earlier in the day. Habit and tradition, I guess? So, I've reduced my meal size in the evening. I can still eat exactly the same food with my partner in the evening ... just a bit less.

You are thinking about the diet that I have been on since diagnosis. My last HbA1C three months ago was 38 (down from 44 twelve months ago) giving an average bG of 6.4. My average bG is currently 5.6 now I've stopped messing around with all these experiments. My last estimate for HbA1C was within 0.2 of my own bG readings, so 5.6 would give me an HbA1C of 35 (allowing for the error). I have also lost 1/2 stone very slowly with another 1/2 stone to go so, In my case, I am trying to force myself to use up fat reserves, so I am currently tending to allow my bGs to drop to the low 4s for periods until I reach my target weight. This is the reason I get 'stage 1 hypos' now and again (3.9 and below). I basically remain 'aware' of foods, quantities etc. but basically eat whatever I like but try to eat fresh as far as I can. Yet, people still suggest a low carb/high fat diet. Should I switch? Not on your nelly!!

I weaned myself off sugary things way before my diagnosis so I don't care if food is tangy or savoury, but I do occasionally eat something sweet. I'm just scoffing some gooseberries raw and on their own from the garden ... trouble is they've got almost nil sugar so I'll need to eat something else too!
 
Charon, I would guess that you have depleted your glycogen stores and that your body is breaking down body fats and protein/fat from the diet to maintain a functioning and constant blood glucose level in the absence or deficit of dietary carbohydrate. That may well be the reason why your baseline BG has risen a bit and stays there. Of course, I could be wrong about that so don't take it as gospel.

I found that too low a level of carbohydrate makes me feel unwell and almost delirious with hunger between meals, whist having somewhat higher background BG levels. I feel better with SOME carbs. Now, that just might be my own individual metabolism which may differ from yours. I don't do well on those types of meals you mention precisely because I end up feeling weak, faint and hungry in a sort of "desperate to eat" way even though my BG levels aren't especially low. Those virtually no carb meals may show good numbers afterwards but they don't translate to lower baseline BG levels in the long run—in my case. Initially, yes, the results are impressive but as time goes on and the body uses up its glycogen stores for glucose and switches to breaking down it's own tissues to make glucose for essential bodily functions, the baseline level increases somewhat. Not hugely, but somewhat.

Some people can get on well with ultra low carb diets, can live in a state of perpetual ketosis, and that's fine, particularly if they have uncomplicated and well controlled diabetes and are otherwise in good health. I'm living with another chronic illness, I can't exercise, my weight is low to the point of being 4lbs away from being clinically underweight. I can't afford to lose muscle mass. My needs are different. I need to look after other aspects of my health and look at the bigger picture, not just the numbers on a glucometer. I'm looking to do what's right for me and as yet I haven't worked that out.


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Article on Fructose and Insulin Secretion

Charon, bit of a coincidence but I just stumbled on this article entitled

Sweet taste receptor signaling in beta cells mediates fructose-induced potentiation of glucose-stimulated insulin secretion

Extract ... We demonstrate that fructose activates sweet taste receptors (TRs) onbeta cells and synergizes with glucose to amplify insulin release inhuman and mouse islets.

Full article

http://www.pnas.org/content/early/2012/01/31/1115183109.full.pdf+html
 
I'm not sure how true it is, but I have been led to believe that fruit sugars do not cause any tissue damage for diabetics. So we are able to eat fruit without cause for concern, even if it does cause of Blood sugars to rise.


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