Science
easyQ. No. 16219
Which type of dietary fibre is especially associated with lowering LDL cholesterol?
Last Updated:
ASoluble viscous fibre
BInsoluble mineral fibre
CAnimal protein
DTrans fat
Correct Answer: Soluble viscous fibreYour Answer: A
Explanation
Correct answer: Soluble viscous fibre. Soluble viscous fibres such as beta-glucan and psyllium can lower LDL cholesterol by influencing bile-acid reabsorption and hepatic cholesterol metabolism. They may also slow gastric emptying and glucose absorption, whereas insoluble fibre is especially useful for stool bulk. Animal protein is not fibre, trans fat worsens cardiovascular risk and 'insoluble mineral fibre' is not the relevant nutritional category.
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Nutrition FAQs
Common questions and clear answers for this topic.
What nutrients does the human body need?
The body needs carbohydrates, proteins, fats, vitamins, minerals and water. Dietary fibre also supports digestive and metabolic health. A balanced diet supplies these components in amounts suited to a person’s age, activity and physiological needs.
Which nutrition facts are commonly tested in competitive exams?
Competitive exams commonly test nutrient functions and sources, energy values, vitamin and mineral deficiencies, fat-soluble and water-soluble vitamins, balanced diets, and protein-energy malnutrition such as kwashiorkor and marasmus.
How should nutrient-deficiency questions be revised?
Learn each nutrient as a four-part link: its major dietary sources, principal function, characteristic deficiency and important excess effect. This method makes similar options easier to distinguish.