Fibre

Question 1

Name some sources of insoluble fibre:

Answer 1

Wheat
Maize
Rice
Wholemeal bread

Question 2

Name some sources of soluble fibre:

Answer 2

Oats
Rye
Barley
Peas

Question 3

Explain soluble fibre:

Answer 3

Slows down the release of glucose into the blood stream and minimises symptoms of diabetes
Stops us feeling hungry

Question 4

Explain insoluble fibre:

Answer 4

Acts by binding water in the intestine

increases bulk of faeces

Question 5

What diseases and health problems can soluble fibre decrease the risk of?

Answer 5

Lowers blood cholesterol - CVD, hypertension

Low calorie foods - lower risk of obesity

Question 6

What diseases and health problems can insoluble fibre reduce the risk of?

Answer 6

Constipation

Bowel disorders - irritable bowel, diverticular disease, haemorrhoids, gallstones and cancer of the colon

Question 7

What is a disadvantage of insoluble fibre?

Answer 7

May contain phytates which may affect zinc and iron absorption

Question 8

What is another disadvantage of insoluble fibre?

Answer 8

Increased bowel movement - flatulence

Question 9

What can be a disadvantage of overall fibre consumption?

Answer 9

Fill toddlers up - leads to a less balanced diet

Question 10

What is peristalsis?

Answer 10

Faeces are formed in the small intestine - moves along the wall of the intestine by peristalsis - muscle contraction of the intestinal wall