Synopsis

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

A fruit and vegetable blend (proprietary) is sometimes used as a dietary supplement with the intention to support digestive health, including conditions like Irritable Bowel Syndrome (IBS). The rationale is generally based on the blend's fiber content, antioxidant compounds, and phytochemicals, which may modulate gut microbiota, reduce inflammation, or improve bowel regularity. There is some scientific rationale supporting the use of increased fruit and vegetable intake for general gut health, as dietary fiber is known to benefit some IBS patients, especially those with constipation-predominant IBS. However, the evidence supporting processed fruit and vegetable blends—particularly proprietary blends with unspecified formulations—for IBS is weak. Most clinical studies have focused on whole foods or isolated fibers (like psyllium), not on these blends.

A few small studies and pilot trials have reported modest improvements in IBS symptoms with broad-spectrum fruit and vegetable extracts, likely due to their prebiotic effects. Still, the results are inconsistent, and there is a lack of large, high-quality randomized controlled trials specifically on proprietary blends for IBS. Notably, some individuals with IBS (especially those sensitive to FODMAPs) may find increased fruit and vegetable intake exacerbates symptoms.

In summary, while there is some scientific support for the general concept that fruits and vegetables can benefit gut health, the direct evidence for proprietary blends as a treatment for IBS is limited and of low quality, justifying a modest evidence score.

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