Fibre is a carbohydrate that comes mainly from plant foods, and unlike other carbohydrates like starches and sugars, fibre has zero calories. Instead of being broken down and absorbed into the bloodstream, fibre simply passes through the digestive tract.
Fibre is either soluble, and dissolves in water, to help lower blood cholesterol and glucose levels – they include oats, peas, beans, apples, citrus fruits, carrots, barley and psyllium. Or fibre is insoluble, which promotes the movement of material through your digestive system and increases stool bulk, helping with constipation (lovely!) They include wheat bran, nuts, beans, cauliflower, green beans and potato.
So be sure to consume a balanced diet of fruits, vegetables, grains, nuts and legumes so you have sufficient fibre for a healthy digestive tract (and no squirming on the toilet!)