Gold kiwifruit supplementation increases the abundance of the beneficial gut bacterium Faecalibacterium, which could potentially enhance gut microbiota composition and reduce inflammation.
Randomised Controlled Trial Constipation Gut Microbiota Kiwifruit
This research was conducted on two groups of participants: one healthy and the other suffering from Functional Constipation (FC). The groups, one containing 20 individuals (one of whom did not complete the study) and the other 9, were given ACTAZIN™ green (in doses of 2400mg and 600mg) and Livaux™ (2400 mg) gold kiwifruit supplements, as well as a placebo in the form of isomalt. The study design was a randomized cross-over structure carried out over 4 weeks, with 2 weeks washout periods between each stage. Changes in faecal microbiota composition and metabolism were assessed using 16S RNA gene sequencing and Gas Chromatography (GC), and colonic pH was measured via SmartPill wireless motility capsules.
The baseline measurements showed that the composition of the faecal microbiota differed significantly between the two groups, with certain bacterial taxa such as Bacteroidales markedly more abundant in the healthy group, while others, including Ruminococcaceae, were more prevalent in the FC group. The clearest change affected by the nutrient supplementation was an increase in Faecalibacterium abundance in the FC group following Livaux™ supplementation, a result observed in nearly all participants in this group. As lower proportions of Faecalibacterium are often linked with gastrointestinal disorders, this increase suggests that the supplements could offer a strategy for ameliorating these conditions.
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