Cat's Claw (Una De Gato) for Gut Health

Research suggests that cat's claw (Uncaria tomentosa) may offer several gut health benefits, with studies pointing to anti-inflammatory, cytoprotective, and potential anti-cancer mechanisms in gastrointestinal tissues. Laboratory and animal studies indicate that cat's claw extracts can inhibit NF-κB activation, reduce markers of intestinal inflammation, protect gut lining cells from oxidative stress-induced damage, and help restore intestinal barrier integrity, while separate cell culture studies found cytotoxic activity against gastric and colon adenocarcinoma cell lines. All available evidence comes from preclinical sources, including in vitro cell studies, rat models of intestinal inflammation, and one study examining a multi-herb combination rather than cat's claw alone, meaning direct conclusions about effects in humans cannot be drawn from this body of research. The absence of human clinical trials is a significant limitation, and while the collective direction of these findings is supportive, well-designed randomized controlled trials would be necessary to establish whether these effects translate meaningfully to human gut health outcomes.