Final answer:
Soluble fiber dissolves in water to form a gel-like substance, which slows glucose absorption and can help lower blood cholesterol. Good sources include oats, beans, and apples. Unlike insoluble fiber, soluble fiber offers nutritional value by interacting positively with gut bacteria. The correct answer is option A .
Step-by-step explanation:
The characteristic of soluble fiber is that it forms a gel-like substance in water. Soluble fiber is made up of plant carbohydrates that are nondigestible and dissolve in water, leading to the formation of a viscous gel. This type of fiber has several health benefits. It slows down the movement of chyme through the small intestine which, in turn, slows glucose absorption, helps manage blood sugar levels, and can reduce insulin spikes, minimizing the risk of type 2 diabetes. Furthermore, soluble fiber can help to lower blood cholesterol levels.
Some excellent sources of soluble fiber include oats, beans, peas, and apples. These whole foods incorporate soluble fiber into the diet and can yield the mentioned health benefits. When soluble fiber is consumed, it undergoes fermentation by the bacteria in the colon, producing short-chain fatty acids and other by-products which have positive physiological effects on the body.
Contrary to insoluble fiber, which does not dissolve in water, soluble fiber is known for its ability to absorb water, become gelatinous, and offer nutritional value through its interaction with the microbiota in the gastrointestinal tract. It's important to note that while all fibers are crucial for healthy digestion, soluble and insoluble fibers have different roles in the digestive system and overall health.