Insights & Discussion
Fruits, especially kiwifruits, and rye bread can enhance bowel movements and help manage chronic constipation better than conventional dietary methods.
An exhaustive analysis was conducted incorporating a multitude of studies, including randomized controlled trials and uncontrolled trials, identified through electronic databases till 12th July 2023. The effect of various foods, drinks, and diets on characteristics such as stool output, gut transit time, symptoms, quality of life, adverse events, and compliance in adults with chronic constipation was inspected. The study also examined the response to different treatments and included a variety of foods such as kiwifruit, high-mineral water, prunes, rye bread, mango, fig, cereal, oat bran, yoghurt, water supplementation, prune juice, and high-fibre or no-fibre diets.
The synthesized data revealed that the consumption of fruits, particularly kiwifruits, and rye bread led to a higher stool frequency when compared to standard treatments like psyllium or white bread. High-mineral water also proved more effective regarding response to treatment than low-mineral water. On the other hand, no distinctive difference was identified for prunes when set against psyllium as a treatment option. Overall, the study insightfully suggests dietary modifications as a means to manage chronic constipation, emphasizing the potential of fruits such as kiwifruits and rye bread.
Discover Related Insights
Kiwifruit and kiwifruit extracts may have a positive impact on constipation in adults by increasing weekly bowel movements, reducing abdominal pain, and minimizing straining.
2022 Canadian Journal of Gastroenterology and Hepatology Kiwifruit and Kiwifruit Extracts for Treatment of Constipation: A Systematic Review and Meta-Analysis Eltorki M, Leong R, Ratcliffe EM
Systematic Review Constipation Kiwifruit
Kiwifruit and kiwifruit extracts show promise in increasing weekly bowel movements and reducing abdominal pain and straining in adults with constipation, although the overall evidence is of low certainty. However, kiwifruit may lead to minor adverse effects, such as bloating and flatulence, compared to placebo, indicating potential for its use as a dietary supplement in constipation management, especially in conjunction with other laxatives if necessary, but further research is needed to establish its effectiveness.
Two gold kiwifruit daily are as effective as fiber-matched psyllium in treating constipation in adults and should be considered as a treatment option.
2022 Nutrients Two Gold Kiwifruit Daily for Effective Treatment of Constipation in Adults—A Randomized Clinical Trial Bayer SB, Heenan P, Frampton C, Wall CL, Drummond LN, Roy NC, et al.
Randomised Controlled Trial Constipation Kiwifruit
This study provided evidence that habitual consumption of two gold kiwifruit daily, a realistic standard serving of fruit, is at least as effective as fiber-matched psyllium in lieu of placebo in treating constipation in adults, with fewer side effects, and offers greater ease of defecation through the improvement of stool consistency and reduction of straining.
Eating kiwifruits improves bowel movements and decreases stool consistency, also providing anti-inflammatory and antioxidant benefits to the gut barrier.
2021 Future Pharmacology Kiwifruit (Actinidia spp.) Dietary Consumption for Constipation: A Systematic Review and Meta-Analysis Antonelli M, Donelli D
Systematic Review Constipation Kiwifruit
The review included nine clinical studies investigating the effect of kiwifruit consumption on intestinal function and constipation. The studies, focusing on young or middle-aged adults predominantly, required participants to consume between two to four kiwifruits daily for durations varying from three days to four weeks. The impact on elderly individuals was less explored.
The review indicates that kiwifruits can enhance bowel movements and reduce stool consistency in both healthy individuals and those suffering from irritable bowel syndrome-induced constipation. The fiber and water content of kiwifruits is thought to contribute to these results. Furthermore, consumption of kiwifruit showed extra intestinal health advantages, including anti-inflammatory and antioxidant effects on the gut barrier. However, when focusing on patients with constipation, the fruit's consumption correlated with a temporary increase in defecation frequency but inconsistently impacted stool consistency. High-quality methodical studies and meta-analysis substantiated these findings.
Eating whole SunGold kiwifruits, both with and without skin, can significantly decrease gut inflammation and alleviate constipation for both healthy people and those with irritable bowel syndrome.
2020 Nutrients The Effects on Immune Function and Digestive Health of Consuming the Skin and Flesh of Zespri® SunGold Kiwifruit (Actinidia Chinensis var. Chinensis ‘Zesy002’) in Healthy and IBS-Constipated Individuals Eady SL, Wallace AJ, Hedderley DI, Bentley-Hewitt KL, Butts CA
Randomised Controlled Trial Constipation Irritable Bowel Syndrome Kiwifruit
In the 16-week cross-over study, 38 participants (both healthy and those with Irritable Bowel Syndrome-Constipation) were randomly assigned to consume either three whole SunGold kiwifruits without the skin or three whole kiwifruits with the skin for periods of four weeks, with a length of four weeks between each intervention as a washout period.
Following the intervention, it was observed that there was a significant reduction in pro-inflammatory cytokines (specifically TNF-α) for both the healthy participants and those with Irritable Bowel Syndrome-Constipation when whole kiwifruits, including the skin, were consumed. Furthermore, similar results were witnessed for the healthy individuals upon consumption of whole kiwifruits without their skin. The consumption of kiwifruit – including its skin – also increased bowel frequency and led to significant reductions in the gastrointestinal symptom rating scale for constipation and Irritable Bowel Syndrome-related pain scores for both participant groups. Results indicate that the skin of the SunGold kiwifruit may have beneficial effects on gastrointestinal health that are not derived from merely consuming the fruit's flesh.
Daily consumption of three gold-fleshed kiwifruit is associated with a significant increase of two complete spontaneous bowel movements per week and reduction in gastrointestinal discomfort in mildly constipated adults.
2019 Journal of Nutritional Science The effect of ‘Zesy002’ kiwifruit (Actinidia chinensisvar.chinensis) on gut health function: a randomised cross-over clinical trial Eady SL, Wallace AJ, Butts CA, Hedderley D, Drummond L, Ansell J, et al.
Randomised Controlled Trial Constipation Kiwifruit
This randomised, controlled study demonstrated that consumption of three A. chinensis var. chinensis ‘Zesy002’ (Zespri® SunGold kiwifruit) daily in mildly constipated individuals resulted in a significant increase in two CSBM per week when compared with baseline and the dietary fibre supplement Metamucil®. It also reduced gastrointestinal discomfort by improving symptoms of indigestion, constipation and abdominal pain when compared with baseline and significantly improved indigestion when compared with Metamucil®. ‘Zesy002’ were also well tolerated, efficacious and safe.
This is the first study assessing the impact of ‘Zesy002’ on stool frequency and gastrointestinal discomfort, and the results suggest that SunGold kiwifruit has some potential as a possible alternative therapy for constipation. Further studies in this area are required to replicate these findings in other populations and to ascertain a deeper understanding of the mechanisms of action that may be driving these results. These will help to confirm and grow the evidence for ‘Zesy002’ kiwifruit as a whole food which can be incorporated into the daily diet as a treatment for improving symptoms in mildly constipated individuals.
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