Benefits
Digestive regularity
Kiwifruit fiber and actinidin may support comfortable, regular bowel movements. This reflects the broader green-kiwifruit food evidence rather than an Actazin-specific bowel-movement trial, making it a gentle, food-based option for occasional constipation and sluggish digestion.
Prebiotic microbiome support
In a human study of functionally constipated individuals, kiwifruit capsules increased beneficial gut bacteria such as Faecalibacterium prausnitzii, a prebiotic microbiome shift rather than a measured bowel-movement outcome.
Protein digestion
The actinidin enzyme helps break down dietary protein, which may ease the digestion of protein-rich meals.
Mechanism of action
Fiber and water retention
Kiwifruit fiber holds water and adds bulk in the colon, supporting stool consistency and regular transit.
Actinidin proteolysis
The natural enzyme actinidin cleaves dietary proteins, aiding gastric and small-intestinal protein digestion.
Clinical trials
Human study of kiwifruit capsule consumption on the composition of the gut microbiota. (Blatchford et al. 2017, Journal of Nutritional Science)
Functionally constipated individuals.
Kiwifruit capsules increased the abundance of beneficial Faecalibacterium prausnitzii, a favorable prebiotic microbiome marker; the study measured microbiome composition, not bowel-movement or regularity outcomes.