Review Suggests Daily Green Kiwi Consumption Can Ease Constipation

A recent scientific review indicates that consuming two fresh green kiwis every day for approximately four weeks can help alleviate constipation and improve overall digestive health. Published in the journal Food, Nutrition and Health, the study analyzed 33 previous reports and trials examining the effects of kiwifruit on the digestive system.

The findings revealed that individuals suffering from chronic constipation or irritable bowel syndrome with constipation experienced more regular bowel movements, reduced straining, and enhanced digestive comfort. Specifically, one international trial highlighted in the review showed that participants with general constipation gained about 1.5 more complete bowel movements per week, while those with irritable bowel syndrome saw an increase of roughly 1.7 bowel movements weekly.

Researchers pointed out that multiple elements of the whole fruit likely work together to produce these benefits. The fiber content helps add bulk and retain water in the stool, while the natural water and sorbitol present in the fruit contribute to making bowel movements easier to pass.

Although the review found strong evidence supporting fresh green kiwifruit, it noted that the fruit was not necessarily superior to other established treatments. A United States trial evaluated within the research demonstrated that green kiwi, prunes, and psyllium fiber all successfully improved chronic constipation. However, kiwi stood out by being associated with fewer side effects and showing high tolerability among participants.

The study also cautioned that the strongest evidence remains tied specifically to fresh green kiwi. Researchers emphasized that there is significantly less data available regarding gold kiwifruit, powders, and extracts, meaning those alternative forms should not be assumed to share the exact same digestive benefits.

Nutrition experts suggest the fruit is relatively easy to incorporate into daily meal planning. Jason Heiselman, a New York-based certified nutritionist and professional chef who was not involved in the review, noted that kiwis provide both dietary fiber and actinidin, a natural digestive enzyme.

Heiselman recommends pairing the fruit with healthy fats like nuts, seeds, or full-fat dairy to boost nutrient absorption. Beyond standalone snacking, he also suggests integrating raw kiwi into savory dishes, such as combining it with salty cheeses, toasted pistachios, and shaved red onion, or using it as a base for chutneys and relishes.

Despite the promising outcomes, authors of the review acknowledged several study limitations. Because the paper evaluated past research rather than conducting a new clinical trial, the analyzed studies varied widely regarding participant demographics, kiwi consumption amounts, and measured outcomes. Furthermore, because most existing studies focused on relatively short durations, additional long-term research is still necessary to confirm if these digestive benefits persist over extended periods.