According to the Diabetes UK (2009) There are some known risk factors for developing type 2 diabetes mellitus that are non-modifiable which Modifications to diet and lifestyle have been shown to be effective in preventing type 2 diabetes , or delaying the onset of diabetes in predisposed individual . Obesity is a strong risk factor for type 2 diabetes , therefore following a healthy diet to reduce excess weight or to maintain a healthy weight will help prevent type 2 diabetes . There is evidence that intake of non-starch polysaccharides and a reduced fat intake , in particular saturated fat , also play an important preventative role . In general , dietary advice to reduce being overwight or obese and dietary measures to redure the risk of coronary heart disease form the basis of type 2 diabetes prevention .(Laura,2009:374)