According to the NHS’ nutritional guidelines, adults should generally aim to eat at 30g of fibre a day.
Good sources of fibre include fresh and dried fruits and vegetables, beans and pulses, nuts, cereals and starchy foods.
Fibre supplements, usually in the form of sachets of powder that you mix with water, are also available from pharmacists and health food shops, explains the NHS.
To ward off any nasty side effects of upping your fibre intake, the health site says to increase your fibre intake over a few weeks and drink plenty of fluids.