Bluetit1802
Legend
Following on from my query about possible reasons for my recent increase in fasting levels coinciding with increasing my fat consumption, the Pizza Effect has been discussed on another thread. @phoenix kindly supplied some links here http://www.diabetes.co.uk/forum/thr...ou-surprisingly-dont.67621/page-3#post-682571 which are very interesting, and go a long way to explain things.
High fat meals appear to encourage more insulin resistance and encourage the liver to dump extra glucose especially on an overnight fast.
This is a quote from one of the links.
It has long been known that adding fat to a meal will slow down the digestion/absorption of carbohydrates. This is due to a slowdown in gastric emptying – the rate at which food passes from the stomach into the intestines, where the nutrients (such as glucose) are absorbed into the bloodstream. This is why the carbohydrates in high-fat meals tend to take longer to raise the blood glucose level. But the difference is generally an hour or two: Whereas a low-fat meal will raise the blood glucose level quickly (usually within an hour), a high-fat meal may take two to four hours to produce a blood sugar peak.
So what about after the carbohydrates are finished doing their thing? That’s when the fat itself begins to exert its effects. The process goes something like this:
High fat meals appear to encourage more insulin resistance and encourage the liver to dump extra glucose especially on an overnight fast.
This is a quote from one of the links.
It has long been known that adding fat to a meal will slow down the digestion/absorption of carbohydrates. This is due to a slowdown in gastric emptying – the rate at which food passes from the stomach into the intestines, where the nutrients (such as glucose) are absorbed into the bloodstream. This is why the carbohydrates in high-fat meals tend to take longer to raise the blood glucose level. But the difference is generally an hour or two: Whereas a low-fat meal will raise the blood glucose level quickly (usually within an hour), a high-fat meal may take two to four hours to produce a blood sugar peak.
So what about after the carbohydrates are finished doing their thing? That’s when the fat itself begins to exert its effects. The process goes something like this:
- You eat a high-fat meal or snack (this is the fun part).
- In a few hours, the fat begins to digest; this continues for several hours.
- The level of fat in the bloodstream (triglycerides) rises.
- High triglycerides in the bloodstream cause the liver to become resistant to insulin.
- When the liver is insulin resistant, it produces and secretes more glucose than usual.
- The blood glucose rises steadily as the liver’s glucose output goes up.