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Historical Event

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January 1, 1971

Short Description:




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Lack of fiber in the diet was first postulated in 1971 as the cause of diseases such as diverticulosis, hemorrhoids and colorectal cancer





Epidemiology of cancer of the colon and rectum. 1971.


Important Text:

The close relationship between bowel cancer and other non‐infective diseases of the bowel, such as benign tumor, divert ocular disease, and appendicitis, indicates that these conditions may have a common or related etiology. Their close association with the refined diet characteristic of economic development suggests that the removal of dietary fiber may be a causative factor. These diseases are all rare in every community examined which exists on a high residue diet, and common in every country where a low residue diet has been adopted. Dietary fiber has been shown to regulate the speed of transit, bulk, and consistency of stools, and together with other dietary factors is probably also responsible for the changes which have been demonstrated in the bacterial flora of feces. It seems likely that carcinogens produced by the action of an abnormal bacterial flora when held for a prolonged period in a concentrated form in contact with the bowel mucosa may account for the high incidence of these diseases in economically developed countries.

Topics: (click image to open)

Diverticulosis occurs when small, bulging pouches (diverticula) develop in your digestive tract. When one or more of these pouches become inflamed or infected, the condition is called diverticulitis. Diverticula are small, bulging pouches that can form in the lining of your digestive system.
Cancer is a metabolic disease where the mitochrondria are no longer able to burn fatty acids and instead rely on fermentation of glucose and glutamine. Ketogenic diets have been used to prevent and cure cancer, as they induce a metabolic stress on cancer cells who cannot use ketones as fuel.
Digestion is the process by which the body breaks down food into smaller components that can be absorbed and utilized for energy, growth, and repair. It involves both mechanical and chemical processes that occur in various organs of the digestive system.
Fiber, also known as dietary fiber or roughage, refers to the indigestible portion of plant foods. It is a type of carbohydrate that cannot be broken down by human digestive enzymes. Instead, it passes through the digestive system relatively intact, adding bulk to the stool and aiding in the regularity of bowel movements. It isn't technically classified as an essential nutrient. The term "essential" in nutrition refers to nutrients that the body cannot produce on its own (or cannot produce in sufficient quantities) and therefore must obtain from the diet
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