Hi All,
Following on from the past two threads..absorption of carbs, and factors that increase the BG level more slowly/quickly, I thought it might be useful to post this thread up for those who do not have the Dr Hanas Bible.
EMPTYING THE STOMACH:
Everything that causes the stomach to release food more slowly into the intestines will also result in a slower increase in BG level. From this, it follows that the composition of the meal will be important, not only the amount of carb it contains. Fat and Fibre cause the stomach to empty more sloely while a drink with the meal will make it empty more quickly. A meal containing solid food (such as pancakes) is emptied more slowly than liquid food like soup. Swallowing without chewing also causes a slower rise in BG. Extremely cold ( 4c, 39f ) or hot ( 50c, 122f ) food will also slow down stomach emptying.
The emptying of the stomach is also affected by the BG level. The stomach empties more quickly if the BG is low and more slowly if the BG is high. Both solid and liquid food are emptied from the stomach twice as fast when the BG drops from a normal level (4-7 mmol/l, 72-126 mg/dl) to a hypoglyceamic level (1.6-2.2 mmol/l, 29-40 mg/dl) Even small changes in BG levels, well within the normal ranges for individuals without diabetes. One study of people without diabetes, showed a 20% decrease in the emptying rate when the BG level was increased from 4 to 8 mmol/l ( 72-144 mg/dl ).
A high insulin level in the blood can also cause slower stomach emptying. This is logical since the body (before the onset of diabetes) was used to having high levels of insulin only when the BG was also high. This reaction works against ue if we develop diabetes. If you BG level has been loweredby a large dose of insulin, you want your stomach to empty as quickly as possible so that the glucose can be absorbed into the blood. In this situation you should take something with a high glucose content, such as glucose tablets, glucose gel, sports drink or honey.
Non- strenuous exercise will lead to unchanged or more rapid emptying of the stomach, while physical exertion stops the stomach from emptying for 20-40 minutes after muscular activity finishes. A possible explanation of this delayed stomach emptying after physical exertion is an increased secretion of adrenalin and morphine like hormones (endorphines)
Stomach emptying can also be delayed if you have gastoenteritis. This may contribute to the problem of prolonged low BG levels that are often associated with vomiting and diarrhoea.
There is a complication of diabetes known as Gastroparesis in which the autonomic nervous system is damaged. This damage involves the nerves that co-ordinate the movements of the stomach and intestine, resulting in the emptying of the stomach being mildly or even severley delayed.
Hope this helps folks
Heidi
🙂
Following on from the past two threads..absorption of carbs, and factors that increase the BG level more slowly/quickly, I thought it might be useful to post this thread up for those who do not have the Dr Hanas Bible.
EMPTYING THE STOMACH:
Everything that causes the stomach to release food more slowly into the intestines will also result in a slower increase in BG level. From this, it follows that the composition of the meal will be important, not only the amount of carb it contains. Fat and Fibre cause the stomach to empty more sloely while a drink with the meal will make it empty more quickly. A meal containing solid food (such as pancakes) is emptied more slowly than liquid food like soup. Swallowing without chewing also causes a slower rise in BG. Extremely cold ( 4c, 39f ) or hot ( 50c, 122f ) food will also slow down stomach emptying.
The emptying of the stomach is also affected by the BG level. The stomach empties more quickly if the BG is low and more slowly if the BG is high. Both solid and liquid food are emptied from the stomach twice as fast when the BG drops from a normal level (4-7 mmol/l, 72-126 mg/dl) to a hypoglyceamic level (1.6-2.2 mmol/l, 29-40 mg/dl) Even small changes in BG levels, well within the normal ranges for individuals without diabetes. One study of people without diabetes, showed a 20% decrease in the emptying rate when the BG level was increased from 4 to 8 mmol/l ( 72-144 mg/dl ).
A high insulin level in the blood can also cause slower stomach emptying. This is logical since the body (before the onset of diabetes) was used to having high levels of insulin only when the BG was also high. This reaction works against ue if we develop diabetes. If you BG level has been loweredby a large dose of insulin, you want your stomach to empty as quickly as possible so that the glucose can be absorbed into the blood. In this situation you should take something with a high glucose content, such as glucose tablets, glucose gel, sports drink or honey.
Non- strenuous exercise will lead to unchanged or more rapid emptying of the stomach, while physical exertion stops the stomach from emptying for 20-40 minutes after muscular activity finishes. A possible explanation of this delayed stomach emptying after physical exertion is an increased secretion of adrenalin and morphine like hormones (endorphines)
Stomach emptying can also be delayed if you have gastoenteritis. This may contribute to the problem of prolonged low BG levels that are often associated with vomiting and diarrhoea.
There is a complication of diabetes known as Gastroparesis in which the autonomic nervous system is damaged. This damage involves the nerves that co-ordinate the movements of the stomach and intestine, resulting in the emptying of the stomach being mildly or even severley delayed.
Hope this helps folks
Heidi
🙂