DO NOT UNDERSTAND

Hi and welcome, well orange juice is just concentrated sugar, so that's out. Check your carbs. Eat only non-processed food, cut out the white stuff, e.g. flour, pasta, bread, rice etc. Test before and 2 hrs after eating.

I'm afraid, with the human body, there are all sorts of variables and blips. Some we can work out e.g., we were stressed / had a cold coming on / slept badly / had a very heavy meal last night and so on. Then there are inaccuracies in the meters themselves, in our own testing procedure and in the way sugars travel around the body. Then there are things you just can't account for.
So, you have to keep lots of records and look for patterns. I would agree with dawnmc, above, that the OJ is not a good idea and I would also check the granola.
If you get an unexpected reading, I would always wait a few minutes, then wash and rinse hands thoroughly and dry on clean kitchen paper and try again. This will remove a major source of errors and consequent worry.
I think it is important to keep very detailed records at first. I referred back time and time again. Now, we rarely test blood sugars and have recently had an amazingly low HbA1c.
Sally

What fruit are you eating then? Stress doesn't help it can raise BS. Hope you are feeling better.

One orange had more sugar than the other?

hi, i think because our meters give us such a definite number we think of bg readings as an exact measure, i think we need to look at it with a squint, kinda view it out of focus, think of it as a line of a graph rather than a definitive number, OJ or anything for that matter that contains sugar or carbohydrate with effect bg, the only way to avoid the spikes is to avoid it completely, or as much as you can, if grapes are sweet, they will raise your bg, this is normal for everyone, the trouble is our bodies don't deal too well with the sugar deposited by the grapes so best avoid them or cut down on the amounts (like you've said you do) but what I'm trying to explain (badly) is if its sweet it will cause a rise, the surprises for me are the hidden sugars they add to processed food (ie. baked beans etc) but it doesn't sound like a problem for you, bananas are full of carbs too which sucks as they are so yummy but heyho so are mars bars

Hi. I would try to avoid checking fasting levels as they are subject to overnight liver dumps. Check the ingredients for the granola and yoghurt as they may be sugar-loaded.