Proper sugar metabolism: When sugar is metabolized all the way to CO2 and water, there is no bringing it back, save by photosynthesis, something we humans cannot do.
Degenerative sugar metabolism: When sugar is metabolized to 2 lactic acid molecules, as it is in the resting muscles of so many diabetics, the liver and kidneys bring it back as glucose.
This contributes to high blood sugar in diabetics.
So does lack of exercise – both aerobic and weight-training, which burn sugar all the way to carbon dioxide and water and create demand for sugar in muscles, giving ingested sugar somewhere to go, besides being orphaned in the bloodstream.
Another contributor to high blood sugar in diabetes is constitutive synthesis of glucose in the liver and kidneys. It is not uncommon for a diabetic to go to bed with a blood sugar of around 100, and even with a good night’s sleep, to wake up with a blood sugar over 130.
Another contributor to high blood sugar is a diet, endorsed by doctors, consisting of 300 grams of carbohydrate a day. This is minor thanks to a prescription drug, insulin, which sweeps the dirt under the rug, that is, transfers the problem of high blood sugar to high muscle sugar, further deranging the metabolism of sugar, fats, and amino acids in muscle.
Another contributor to high blood sugar is lack of sugar demand by muscles due to feasting from an unfasted state – the failure to fast for at least 18 hours every day and to eat properly within no more than a 6 hour window. Again, insulin forces this homeless sugar into a deranged home, run by madmen, the muscles of a diabetic.
The failure to eat properly leaves the diabetic with multiple nutrient deficiencies, which aggravate all sorts of metabolic problems (imagine trying to stimulate mitochondrial respiration, which depends on two thiamine, magnesium, potassium-requiring enzymes in a diabetic who is chronically deficient in all three), and these are aggravated by failure to reabsorb the nutrients properly due to diseased kidneys, and aggravated further by prescription medications (including diuretics for high blood pressure), many of which have associated nutrient deficiencies.
And so does insulin resistance, the real and only problem in high blood sugar, according to most doctors.