Benefits
Constipation Relief
Kiwi has well-documented evidence for constipation relief — improves stool frequency, softness, ease of passage. Multiple RCTs of green and gold kiwi for chronic constipation. Kwd+ provides standardized concentrated form.
Healthy Digestion
Actinidin enzyme assists protein digestion; fiber supports regular bowel function; polyphenols support overall gut health.
IBS-C Symptom Improvement
Kiwi has shown benefits in IBS with constipation (IBS-C) — symptom reduction and bowel habit normalization in clinical trials.
Organic and DNA Certified
Pharmactive certifications: organic certification + DNA-certified (verified species authenticity). Distinguishes from non-certified kiwi products.
Standardized for Clinical Application
Pharmactive standardization ensures consistent active compound delivery vs variable raw kiwi or generic powders.
Mechanism of action
Actinidin Proteolytic Enzyme
Actinidin is kiwi-specific proteolytic enzyme; helps digest dietary proteins; relevant to digestive comfort and protein-heavy meal handling.
Soluble and Insoluble Fiber
Kiwi provides both soluble and insoluble fiber types — soluble for SCFA production and microbiome; insoluble for stool bulking.
Prebiotic / Microbiome Support
Kiwi fiber and polyphenols support beneficial bacteria; modest prebiotic effect.
Stool Hydration
Kiwi soluble fiber binds water — supports stool hydration; relevant for constipation.
Polyphenol Anti-Inflammatory
Kiwi polyphenols provide antioxidant and anti-inflammatory support to GI tract.
Clinical trials
Multiple RCTs of green or gold kiwi (typically 2 kiwifruit/day) for chronic constipation in various populations.
Chronic constipation patients across studies.
Significant improvements in stool frequency, consistency, ease of passage. Established kiwi as evidence-based constipation intervention.
Pharmactive studies of Kwd+ standardized kiwi extract for digestive applications.
Adults with digestive concerns.
Improvements in digestive function and constipation symptoms.
About this ingredient
KWD+® is a STANDARDIZED KIWI EXTRACT developed by PHARMACTIVE BIOTECH PRODUCTS (Spain). KIWI BOTANY: Actinidia chinensis (gold kiwi) or Actinidia deliciosa (green kiwi); fruits originally from China, now cultivated worldwide (New Zealand, Italy, Chile primary commercial producers).
KEY ACTIVES: (1) ACTINIDIN — kiwi-specific proteolytic enzyme; assists protein digestion; (2) FIBER — both soluble and insoluble; (3) POLYPHENOLS — flavonoids, quercetin, kaempferol; (4) VITAMIN C — high content in fresh fruit (some retained in extract); (5) Other minor compounds.
KEY DISTINCTIONS: (1) ORGANIC CERTIFICATION; (2) DNA CERTIFIED — verified species authenticity (protects against adulteration); (3) CONCENTRATED kiwi bioactives in standardized form.
EVIDENCE-BASED USES: (1) CONSTIPATION RELIEF (extensive evidence with kiwi fruit; Kwd+ provides concentrated form); (2) Healthy digestion; (3) IBS-C symptom improvement; (4) Protein digestion (actinidin); (5) Microbiome support (modest); (6) Gut health overall.
CRITICAL CAUTIONS: (1) KIWI ALLERGY — increasingly common; can be severe (anaphylaxis possible); cross-reactivity with LATEX, BANANA, AVOCADO; AVOID with kiwi or latex allergy; (2) ORAL ALLERGY SYNDROME — mouth/throat tingling/itching common in those with birch pollen allergy and kiwi cross-reactivity; (3) DOSE — per Pharmactive product specification; (4) DURATION — constipation effects typically within days to weeks; (5) PREGNANCY/LACTATION — culinary kiwi safe; concentrated extract supplementation generally safe; (6) CHILDREN — appropriate at proportional doses; introduce carefully due to allergy potential; (7) KIWIS vs PHGG (Sunfiber/Fibalance) vs PSYLLIUM — different fiber sources for constipation; kiwi has specific actinidin enzyme advantage; complementary or alternative; (8) KWD+ vs FRESH KIWI FRUIT — fresh kiwi (typically 2 fruits/day) is research-validated; concentrated extracts provide convenience and consistency; both have value; (9) IBS APPLICATIONS — effective for IBS-C; not specifically targeted for IBS-D or IBS-M; (10) For COMPREHENSIVE DIGESTIVE HEALTH — adequate hydration, fiber intake, exercise, regular meal timing foundational; Kwd+ adjunct; (11) CHRONIC CONSTIPATION — if constipation is chronic and severe, medical evaluation important to rule out underlying conditions (IBS, IBD, thyroid issues, medication side effects); (12) BRAND VERIFICATION — Kwd+® is Pharmactive trademark; specific organic and DNA certifications; clinical evidence on this standardized form.