digestion of carbohydrates and after intestinal absorption produce glucose, galactose and fructose, these sugars are transported in the blood and the liver, they are converted into glucose.
The glucose is then, trivially speaking, the level of glucose in the blood as a result of digestion and absorption of carbohydrates: it is of fundamental importance for the organism, but can not exceed a certain limit in order to define a healthy body and without risk.
high blood sugar is, in fact, the source of many diseases, first and best known of all diabetes and, if it is aimed at medium to high increases the risk of many dangerous diseases such as cancer and most important: the limits of the normal of 65-110 mg / dl, they must be respected in order not to induce in the individual situations of ill health.
blood glucose, of course, increases and decreases in diabetic patients in a fasting individual: if a healthy person in this parameter ranges, fast, between 80 and 100 mg / dl, after a meal are considered normal blood glucose values \u200b\u200baround 130-150 mg/100 ml, but in any case, the level of glucose in the blood should never exceed 180mg/dl.
When blood sugar rises, your body starts to lose glucose in urine - known as glycosuria. This action "defensive" organism, although it may apparently seem positive, in reality it is not at all, because with the excessive amount of glucose in urine is going to lose a significant amount of water, causing the individual to Hazardous dehydration and causing serious malfunctions.
contrast, when blood glucose is lowered as a result of decreased glucose uptake and its lack of presence in the blood, there is instead a phenomenon known as hypoglycemia, accompanied by major symptoms such as tremors, pallor, fatigue , and fatigue, sudden hunger, and in some cases - or in blood glucose levels 20mg/dl below - you can go to meet even coma or death.
The link between blood sugar and glycemic index carbohydrates are especially: certain foods containing complex carbohydrates, can carry a high glycemic index, which can suddenly raise the level of glucose in the blood and causing a phenomena clearly hyperglycemia.
The action of insulin is, in this case, the fundamental fact, it acts on hepatocytes and influence the metabolism of various tissues, regulating defect in the presence of sugar in the blood, the other hormone able to adjust the level of glucose in the blood - but excess - and glucagon, whose action is contrary to insulin, hyperglycaemic.
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