fibre

Definition

Fibre is a type of carbohydrate that is found in plants. It is made up of long, chain-like molecules that cannot be digested by the body. Fibre is an important part of a healthy diet because it has many health benefits.

One of the main benefits of fibre is that it helps to keep the digestive system healthy. Fibre helps to add bulk to stool and makes it easier to pass through the intestines. This can help to prevent constipation and other digestive problems.

Fibre also helps to lower blood cholesterol levels. This is because fibre binds to cholesterol in the digestive tract and prevents it from being absorbed into the bloodstream.

Fibre can also help to regulate blood sugar levels. This is because fibre slows down the absorption of carbohydrates into the bloodstream. This can help to prevent spikes in blood sugar levels after meals.

Fibre is also important for heart health. Fibre helps to lower cholesterol levels and reduce the risk of heart disease.

There are two main types of fibre: soluble fibre and insoluble fibre. Soluble fibre dissolves in water and forms a gel-like substance in the digestive tract. This helps to slow down digestion and absorption of food, which can help to control blood sugar levels. Insoluble fibre does not dissolve in water and helps to keep the digestive system healthy by adding bulk to stool and helping it to pass through the intestines more easily.

Good sources of fibre include fruits, vegetables, whole grains, and legumes. It is important to eat plenty of fibre-rich foods every day to maintain good health.

How can the word be used?

The fibre in the plant helps to keep it strong.

Different forms of the word

Noun: fiber, fibre.

Adjective: fibrous, fibreous.

Verb: fibre, fiber.

Adverb: fibrely, fiberly.

Etymology

The word "fibre" is derived from the Latin word "fibra", which means "thread, tendon". The word "fibra" is thought to be derived from the Proto-Indo-European root *gwhi-, which also means "thread, tendon".

Question

What is fibre?

AQA Science Exam Question and Answer

Question:

Explain the importance of dietary fibre in human nutrition and its impact on digestive health. Describe the different types of dietary fibre and their respective functions in the body. Provide real-life examples of fibre-rich foods and their benefits.

Answer:

Dietary fibre plays a significant role in human nutrition, particularly in maintaining digestive health. It refers to the indigestible part of plant-based foods that pass through the digestive system intact, adding bulk to stool and promoting regular bowel movements. There are two types of dietary fibre: soluble and insoluble. Soluble fibre dissolves in water and helps lower cholesterol levels and stabilise blood sugar levels. Insoluble fibre aids in promoting bowel regularity and preventing constipation.

Fibre-rich foods include whole grains, fruits, vegetables, legumes, and nuts. For example, oatmeal is an excellent source of soluble fibre, which can help reduce cholesterol levels, while broccoli provides ample amounts of insoluble fibre, supporting digestive health.

Overall, incorporating a variety of fibre-rich foods into one's diet is essential for promoting digestive health and overall well-being.