“It's specifically adept at promoting regular bowel movements, clearing out harmful substances and preventing colon cancer,” she says. What are Good Sources of Soluble and Insoluble Fibe ...

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Salt is soluble in water too. Substances that do not dissolve in water are called insoluble substances. When you mix sand or flour with water, they do not dissolve.

There are two types of fiber -- "soluble," if it dissolves in water, and "insoluble," if it doesn't. Soluble fiber absorbs water and turns into gel, which slows down digestion, helps you feel full ...

"When comparing soluble and insoluble fiber, the main differences ... of dietary fiber that dissolves in water to form a gel-like substance," says Lauren Manaker, MS, RDN. "This quality allows ...