Incidences of the disease, which kills 17,000 per year in the UK, have surged by 52 per cent in 25-49 year-olds over the last 30 years, according to studies. But eating more fibre could greatly cut that risk. Incidences of the disease, which kills 17,000 per year in the UK, have surged by 52 per cent in 25-49 year-olds over the last 30 years, according to studies. But eating more fibre could greatly cut that risk.