ISSA Nutritionist Practice Exam

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Study for the ISSA Nutritionist Exam with confidence. Engage with targeted questions and interactive tools that enhance your understanding of nutrition concepts. Prepare effectively for your certification and elevate your career!

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What is a key characteristic of soluble fiber?

It dissolves in water
It is high in protein
It is a source of gluten
It is digested in the stomach

The correct answer is: It dissolves in water

A key characteristic of soluble fiber is that it dissolves in water. This property allows soluble fiber to form a gel-like substance when mixed with liquids, which plays a significant role in various physiological benefits. For example, soluble fiber can help to lower cholesterol levels by binding to bile acids and cholesterol in the intestines, promoting their excretion from the body. It also aids in regulating blood sugar levels by slowing down the absorption of sugars, providing a more gradual release of glucose into the bloodstream. The other options do not accurately describe soluble fiber. Soluble fiber is not high in protein; it is primarily composed of carbohydrates. It does not contain gluten, as gluten is a specific type of protein found in wheat and related grains. Furthermore, soluble fiber is not digested in the stomach; rather, it is fermented by bacteria in the large intestine, contributing to gut health. Understanding these characteristics helps to appreciate the important role of soluble fiber in a balanced diet.