Fibre is often recommended as a universal solution for good digestion. The recommendation „eat more fiber“ sounds simple, but in practice many people do not feel better, and sometimes even get bloating, gas and discomfort. The reason is one: not all fiber works the same way.
Fibre is a type of carbohydrate that is not broken down by digestive enzymes. Instead they:
But their effect depends on the type of fiber and the condition of the intestines.
Soluble fibers form a gel-like structure in the intestine and:
Sources:
This fiber increases stool volume and stimulates peristalsis.
Useful for:
But they can get worse:
Sources:
They are broken down by bacteria in the colon and stimulate the growth of beneficial microorganisms.
Pros:
Minuses:
Sources:
In people with:
some fiber can „feed“ the wrong bacteria and make symptoms worse. Therefore, the amount and type of fiber should be individualized.
A sharp increase almost always leads to swelling.
Improvement ≠ more gases. Discomfort is a signal.
Without enough fluids, fiber can worsen constipation.
Psyllium, for example, is well tolerated by most people, while inulin often causes problems.
Fiber is not a stand-alone solution, but part of the bigger picture: nutrition, gut health, microbiota and lifestyle. The right choices can significantly improve quality of life, while the wrong ones can worsen symptoms.
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