100g of raisins provide 3.7 g or 10% of the daily recommended levels of dietary fibres. The analysis of the composition of raisin dietary fibres (Camire, Dougherty, 2003) showed that it contained mainly pectins and polysaccharides of glucose and mannose residues. Studies have shown that the inclusion of foods with fibre in our diet helps to maintain healthy body weight, helps reduce blood cholesterol levels, and even contributes to the proper functioning of the colon and the reduction of constipation episodes (reducing gastrointestinal transit). There have been reports of positive effects in the prevention of certain cancers, especially intestine and breast cancer.
Moreover, raisins contain flavonoid compounds such as tartaric acid, tannins, catechins, etc.