Fibre is a non-absorbable part of food, usually of plant origin. It is divided into soluble fibre, which can be partially utilised by intestinal bacteria, and non-soluble fibre, which passes through the digestive tract unchanged. Non- soluble fibre is known to prevent the formation of colorectal cancer. The recommended daily intake of fibre is 30g. Chemically, they are mostly polysaccharides such as cellulose, hemicelluloses, lignin, pectin, agar or inulin.
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