It's usually because he has ate something that is slow to digest and convert to glucose. That's how low GI and high gi differentiates.
As well as how much good fats was involved in the meal.
Sounds like the meal was high in slow burning carbs, all carbs raise blood glucose, some give a short sharp shock others are slow acting but raise the blood glucose level for hours afterwards, in short too much carbohydrate
And also I have found that if you have a mix of carbs and fat you can get a double peak that is BG can go up with the carbs and then fall then rise again with the fats and then fall again and that can happen over a period of three or more hours.
He had lamb stovies with broccoli cabbage and mushrooms, done in olive oil and butter. Slip he's a very ratty perfectionist and HE IS DRIVING ME MAD!!!!
And also I have found that if you have a mix of carbs and fat you can get a double peak that is BG can go up with the carbs and then fall then rise again with the fats and then fall again and that can happen over a period of three or more hours.
Hi John,
Most people do have a double spike even though they don't know, there is the initial insulin response, then a second spike then second insulin response.
I'm weird, I have only one, straight up, no messing about!
My insulin just doesn't stop.