Recent Content by jrw2007

Correct, skeletal muscle cannot directly put glucose into the blood stream - that is a function of the liver.

When lecturing on biochemistry to medics and physiological sciences students at the University of Oxford, Dr Garry Brown would start by stating that the human body runs primarily on fatty acids and not to believe that glucose is the primary fuel. The Krebs cycle uses fat through beta oxidation...

There is a variable when measuring fasting glucose that appears to differ from individual to individual. When the plasma glucose drops due to fasting at some stage the control systems decide that it is going too low and start to release glucose into the blood stream from the stores in the liver...

Intensity of exercise is a factor. At low intensity the fuel used by the skeletal muscle is primarily fat - at high intensity the fuel is primarily glucose and mainly glucose already stored in the muscle. If you deplete the stored glucose the skeletal muscle removes glucose from the blood stream...

Using test/retest, fasting plasma glucose (12 hour fast) shows considerable variance possibly dependent on exactly what was eaten or drunk 12 hours previously. HbA1c shows far less variance on test/retest.