NZ Kiwifruit, Blackcurrants, Boysenberries, Grapes, and polyphenols/anthocyanins have a considerable amount of published scientific research.

Here's a select collection to explore:



Gut Health:

Effects of Dietary Grape Seed Meal Bioactive Compounds on the Colonic Microbiota of Weaned Piglets With Dextran Sodium Sulfate-Induced Colitis Used as an Inflammatory Model (nih.gov)

Chronic supplementation with dietary proanthocyanidins protects from diet-induced intestinal alterations in obese rats - PubMed (nih.gov)

Kiwifruit: Overview of Potential Health Benefits

Characteristics and pro-health properties of mini kiwi (Actinidia arguta)

Nutritional and health benefits associted with kiwifruit consumption

Efficacy of actinidin-containing kiwifruit extract zyactinase on constipation: A randomised double-blinded placebo-controlled clinical trial

Actinidin Enhances Protein Digestion in the Small Intestine As Assessed Using an in Vitro Digestion Model

Influence of Kiwifruit on Protein Digestion

Antispasmodic Effect of Blackcurrant (Ribes nigrum L.) Juice and Its Potential Use as Functional Food in Gastrointestinal Disorders

Characteristics and pro-health properties of mini kiwi (Actinidia arguta)

Effects of Dietary Grape Seed Meal Bioactive Compounds on the Colonic Microbiota of Weaned Piglets With Dextran Sodium Sulfate-Induced Colitis Used as an Inflammatory Model (nih.gov)

Chronic supplementation with dietary proanthocyanidins protects from diet-induced intestinal alterations in obese rats - PubMed (nih.gov)

Black Currant Anthocyanins Attenuate Weight Gain and Improve Glucose Metabolism in Diet-Induced Obese Mice with Intact, but Not Disrupted, Gut Microbiome | Journal of Agricultural and Food Chemistry (acs.org)

Long-Term Blackcurrant Supplementation Modified Gut Microbiome Profiles in Mice in an Age-Dependent Manner: An Exploratory Study (mdpi.com)

Effects of Blackcurrant and Dietary Fibers on Large Intestinal Health Biomarkers in Rats | SpringerLink

Evaluation of the Effect of Blackcurrant Products on Gut Microbiota and on Markers of Risk for Colon Cancer in Humans - Molan - 2014 - Phytotherapy Research - Wiley Online Library

Aqueous Blackcurrant Extract Improves Insulin Sensitivity and Secretion and Modulates the Gut Microbiome in Non-Obese Type 2 Diabetic Rats (mdpi.com)

The specificity of actinidin and its relationship to the structure of the enzyme - PubMed (nih.gov)

Actinidin enhances protein digestion in the small intestine as assessed using an in vitro digestion model - PubMed (nih.gov)

Actinidin enhances gastric protein digestion as assessed using an in vitro gastric digestion model - PubMed (nih.gov)

The nutritional and health attributes of kiwifruit: a review - PMC (nih.gov)