Dietary Fibre Flashcards
(18 cards)
What is the definition of dietary fibre?
Dietary fibre is the remnants of the edible parts of plants and analogous carbohydrates that are resistant to digestion and absorption in the human small intestine.
What is the recommended daily intake of dietary fibre for a 2000 kcal diet?
About 30 grams of dietary fibre.
What can excessive intake of dietary fibre (over 60 g/day) cause?
It can reduce nutrient absorption and cause bowel irritation.
What are the main components of dietary fibre?
Polysaccharides, oligosaccharides, lignin, and associated plant substances.
True or False: Animal foods contain dietary fibre.
False.
What are the health benefits of dietary fibre?
Laxation, blood cholesterol attenuation, and blood glucose attenuation.
What are organic acids and polyols considered as part of?
They are considered as part of dietary fibre.
List the estimated daily dietary fibre intake for men and women in the rural income segment in western India.
- Men: 39 g/day
- Women: 30 g/day
What factors determine the actual quantity of dietary fibre intake?
The nature of cereals, pulses, whole grain, vegetables, and millets used.
Fill in the blank: Dietary fibres have been characterized by its source, e.g., _______.
[cereal, vegetable, and fruits]
What are the two types of dietary fibre based on solubility?
- Soluble
- Insoluble
What is the role of intestinal microbes in relation to dietary fibre?
They ferment dietary fibre, rendering part of the energy from resistant starch available.
How does the digestibility of fibre change?
It is determined by physiochemical and structural properties and the process used.
What is ‘crude fibre’?
It includes all structural fibre, cellulose, lignin, and hemicellulose, and is related to digestibility.
What are the properties of dietary fibre?
- Holding water
- Swelling properties
- Adds bulk to food
- Favours satiety
- Increases transit time in the gut
How is dietary fibre associated with coronary heart disease?
Its mechanism of action is attributed to binding to bile salts and preventing their reabsorption, thus reducing cholesterol levels.
What effect does dietary fibre have on post-prandial glucose levels?
It is reported to reduce post-prandial glucose levels in blood.
What percentage of gum is contained in fenugreek seeds?
40 percent.
