Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Fiber is sometimes recommended for digestive health, but its use specifically for treating or supporting acid indigestion (also known as heartburn or dyspepsia) is only modestly supported by scientific evidence. Some studies suggest that diets higher in fiber, especially soluble fiber, may help reduce symptoms of acid reflux and indigestion by improving gastrointestinal motility, promoting gastric emptying, and possibly reducing the risk of gastroesophageal reflux disease (GERD). For example, a 2018 study published in the journal World Journal of Gastroenterology found that increased dietary fiber intake was associated with reduced symptoms of GERD.

However, the evidence is not robust, and most clinical guidelines do not list fiber as a primary treatment for acid indigestion. The beneficial effects of fiber are more well established for conditions such as constipation and overall gut health. Some individuals may even experience worsening of symptoms with certain fibers, especially if they have underlying gastrointestinal disorders (like irritable bowel syndrome).

In summary, while there is some scientific basis suggesting that fiber could offer mild benefit for acid indigestion, the evidence is limited and inconsistent. Fiber is not a primary or universally recommended therapy for this condition, and its role is generally considered adjunctive rather than central.

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