Dietary Fibre Flashcards
what are the non-nutrients?
water and dietary fibre
what are the different types of dietary fibre?
- insoluble dietary fibre
- soluble dietary fibre
what is the function of insoluble dietary fibre?
aids in maintaining a healthy digestive system
what are the functions of soluble dietary fibre?
- provides high satiety value
- regulates blood glucose levels
- lowers blood cholesterol levels
explain how soluble dietary fibre provides a high satiety value
- soluble dietary fibre dissolves in water and expands, slowing down the movement of food in our digestive tract
- leaves a feeling of satiety and prevents overeating
explain how soluble dietary fibre regulates blood glucose levels
by slowing down the rate of glucose that are released into the bloodstream
explain how soluble dietary fibre lowers the blood cholesterol levels
by preventing cholesterol from being absorbed into the bloodstream
what are some sources of insoluble dietary fibre
- carrots
- long bean
- broccoli
- skin of fruits
- avocado
- whole meal bread
what are some sources of soluble dietary fibre?
- barley
- figs
- oats
- oranges
- berries
- apples
- avocado
- peas
- plums
what are some impacts of insufficient dietary fibre?
- diverticulosis
- colorectal cancer
- haemorrhoid
what is diverticulosis
- small, blown-out pouches that develop on the intestinal walls
- this causes water matter to be forced out of the colon
what is colorectal cancer?
cancerous cells develop either on the colon or on the rectal area of the large intestine
what is haemorrhoid?
this disease is also known as pile which occurs at the anus due to the strain exerted during defecation
what are some ways to increase fibre intake?
consume more high fibre fruits and vegetables
explain how insoluble dietary fibre helps to maintain a healthy digestive system
- insoluble dietary fibre absorbs and retains water to make waste materials soft and bulky for easy excretion out of the body
- prevents constipation to reduce the risk of diverticulosis
- too much insoluble dietary fibre can also result in constipation