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.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

References in periodicals archive ?

Characterisation of peach dietary fibre concentrate as a food ingredient.

Micronization and extrusion processing on the physicochemical properties of dietary fiber/Efeito dos processos de micronizacao e extrusao nas propriedades fisico-quimicas da fibra alimentar

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.

High fibre diets make for healthier lives

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.

Increasing fibre in South Asian Diets

Total dietary fibre and constituents of nominated legumes is shown in Table 3.

A comparison of nutrient and dietary compositions of cereals and pulses commonly consumed in Pakistan

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.

Application and Development Prospects of Dietary Fibers in Flour Products

For this reason, dietary fibre can be effective in treating constipation and disorders such as diverticular disease.

Fibre

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).

Dietary fibre content, phenolic compounds and antioxidant activity in soursops (Annona muricata L.)/Conteudo de fibra alimentar, compostos fenolicos e atividade antioxidante em graviola (Annona muricata L.)

are a good source of dietary fibre, potassium and vitamins C and A

Four reasons to eat... galia melons

Effect of dietary fibre on ileal digestibility and endogenous nitrogen losses in the pig.

Effects of dietary cellulose on the basal endogenous loss of phosphorus in growing pigs

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.

EFFECT OF DIFFERENT SOURCES OF DIETARY FIBER ON GROWTH, APPARENT DIGESTIBILITY OF PROTEIN, FAT AND ENERGY AND PROTEIN UTILIZATION IN RATS

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.