FRUCTOSE (Group 2)
Another single-molecule sugar is fructose found in fruit and juices and honey.
GALACTOSE (Group 3)
The single sugar is a constituent of lactose which occurs in milk. The foregoing three groups of sugar are natural to the body and are proper food for it.
However, it is important that nothing hinder the digestive processes because delay gives time for fermentation of these sugars before they reach the blood.
THE MOST COMMON SUGAR
The sugar most commonly used is not included in any of the foregoing groups, and is not natural to the body, and is a very unfavorable food. It is "sucrose", a double-molecule wherein two single molecules similar to the diagram already given, are linked together, like one molecule of glucose and one of fructose tied together. These two single sugar molecules when separated are natural to the body, but when linked together they irritate any tissue they contact. They cannot be separated by the saliva in the mouth or the gastric juice in the stomach, and while they are finally separated in the small intestine and enter the blood as simple sugar, their separation is made after considerable delay, and with difficulty; and until they are separated they are strong irritants to the celles of the mucous membranes of the mouth, stomach, duodenum and small intestine. This irritation often causes serious trouble.
The sugar most commonly used is not included in any of the foregoing groups, and is not natural to the body, and is a very unfavorable food. It is "sucrose", a double-molecule wherein two single molecules similar to the diagram already given, are linked together, like one molecule of glucose and one of fructose tied together. These two single sugar molecules when separated are natural to the body, but when linked together they irritate any tissue they contact. They cannot be separated by the saliva in the mouth or the gastric juice in the stomach, and while they are finally separated in the small intestine and enter the blood as simple sugar, their separation is made after considerable delay, and with difficulty; and until they are separated they are strong irritants to the celles of the mucous membranes of the mouth, stomach, duodenum and small intestine. This irritation often causes serious trouble.
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