Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Green banana (unripe banana) is increasingly recognized in scientific literature for its potential benefits in managing gas and bloating, primarily due to its high content of resistant starch and dietary fiber. Resistant starch escapes digestion in the small intestine and reaches the colon, where it serves as a prebiotic—feeding beneficial gut bacteria. As these bacteria ferment resistant starch, short-chain fatty acids (SCFAs) are produced, which can enhance colonic health and regulate bowel function. Multiple studies have demonstrated that resistant starch from green bananas can help normalize bowel movement frequency and improve stool consistency, especially in patients with irritable bowel syndrome (IBS) or functional gastrointestinal disorders. Some clinical trials have also shown that green banana flour supplementation can reduce symptoms such as abdominal bloating and discomfort in both adults and children. However, it is important to note that sudden increases in fiber intake can initially lead to transient gas and bloating, but with gradual introduction, the gut microbiota adapts, and overall symptoms may improve in the long term. While traditional medicine, particularly in parts of Africa and Central America, has used green banana for digestive issues, the current evidence base is largely scientific, with randomized controlled trials and mechanistic studies supporting its efficacy. Nevertheless, more large-scale studies are required to establish optimal dosing and long-term effects.

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