dietary fibre


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dietary fibre

Indigestible plant-derived residues composed predominantly of cellulose, hemicellulose and cell wall polymers. Dietary fibre (e.g., bran lignin, pectin) provides stool bulk, increasing the transit time for nutrients in (surgically) shortened gastrointestinal tracts, and decreasing the transit time in long or constipated gastrointestinal tracts. Dietary fibre improves the plasma lipid ratios, resulting in a 10–17% decrease in cholesterol (including decreased LDL-cholesterol) as well as a reduced dietary intake of energy, fat and cholesterol-rich foods. Increased dietary intake of fibre is associated with decreased colon cancer and tumour regression in premalignant familial adenomatous polyposis and diverticulosis; low dietary fibre consumption has been linked to colorectal cancer, diverticulitis, increased cholesterol, gallbladder disease, constipation and appendicitis.

dietary fibre

A group of complex carbohydrates that includes plant cellulose, lignin, pectins and gums. These polysaccharides resist digestion and thus cannot be absorbed, but remain in the intestine until excreted, providing a useful sense of fullness or satiety. Fibre and is of value in the management of OBESITY. It bulks out the stool and is useful in the treatment of CONSTIPATION and DIVERTICULITIS. Dietary fibre reduces the risk of colorectal cancer possibly by removing carcinogens. Some soluble fibres bind bile cholesterol and prevent it from being reabsorbed. This can lower blood cholesterol. High fibre foods include vegetables and fruits, bran, beans, peas and nuts.
References in periodicals archive ?
Chemically, dietary fibre consists of carbohydrate polymers or oligomers that are neither digested nor absorbed in the human small intestine.
Mann said the health benefits of dietary fibre -- contained in foods such as whole grains, pulses, vegetables and fruit -- come from its chemistry, physical properties, physiology and its effects on metabolism.
Dietary fibres are constituted by complex carbohydrates which are remnants of edible part of plants and analogous carbohydrates that are resistant to enzymatic digestion in the human small intestine with complete or partial fermentation in the large intestine.
Total dietary fibre and constituents of nominated legumes is shown in Table 3.
Ghosh, "Studies on functional and antioxidant property of dietary fibre extracted from defatted sesame husk, rice bran and flaxseed," Bioactive Carbohydrates and Dietary Fibre, vol.
For this reason, dietary fibre can be effective in treating constipation and disorders such as diverticular disease.
The most relevant macronutrients in the soursop fruit (Anonna muricata L.) are carbohydrates, including dietary fibre (Table 1), which collaborate with rheological properties of food (NWOKOCHA; WILLIAMS, 2009).
are a good source of dietary fibre, potassium and vitamins C and A
Effect of dietary fibre on ileal digestibility and endogenous nitrogen losses in the pig.
Thestudy of the effects of dietary fibres on digestion is complicated by the fact that the dietary fibre is not a homogeneous compound but consists of a variety of substances, including cellulose, hemicellulose, pectin, mucilage, gums, algal polysaccharides and lignin.
Bayn Europe and Barentz have launched a stevia research project aimed at developing the use of stevia dietary fibre blends as a substitute for chemical sweeteners in the Baltic region.