What is glucose?

Some facts
Glucose is the chemical name of several sugars, less sweet than cane sugar. Commercially speaking, glucose is a sirup, lacking in sweetness, produced by the action of sulphuric acid on the starch of grain or potatoes. Glucose is the base of most cheap sirups. It is not poisonous nor in any way unwholesome. The main prejudice against glucose arises from its extensive use as an adulterant or substitute for the higher priced maple, cane, and beet products. Glucose is distributed widely in nature. It is a constituent of grapes, cherries, plums, figs, and many other sweet fruits. The sugary sweet excretion on raisins is glucose. It is a constituent of honey. It occurs also in living animal tissues, and in the intestine, hepatic veins, and liver tissue of human beings. In the disease known as diabetes it exists in large quantities in the urine, and may be found in all fluids of the body.