Cat's Claw: What It Is and How People Use It

Cat's claw (Uncaria tomentosa) is a vine from the Amazon used for decades as a traditional remedy. People take it for joint pain, inflammation, digestive issues, and to support the immune system. You can find it as capsules, powders, tinctures, and teas. If you want real, practical advice—this page focuses on what the evidence says, how to use it safely, and how to choose a quality product.

Benefits & What Science Says

Lab studies show cat's claw has anti-inflammatory and antioxidant actions. Small clinical trials reported some benefit for osteoarthritis pain and for symptoms in Crohn's disease, but results are mixed and sample sizes were small. That means some people notice improvement, but it's not a guaranteed cure. Researchers also studied immune effects: extracts can change immune cell behavior, which might help infections or inflammation but could be a problem if you take drugs that suppress or boost the immune system.

Use these takeaways: cat's claw may reduce inflammation and help some digestive or joint symptoms, but the evidence is limited. Treat it as a supportive option, not a replacement for proven treatments.

Safety, Dosing & Buying Tips

Typical doses in studies range from about 250–350 mg of standardized extract twice daily, but labels vary a lot. Start at the lower end and watch how you feel. Take it with food if you get stomach upset. Avoid long continuous use without checking with your healthcare provider—most research looked at weeks to a few months, not years.

Be careful if you have an autoimmune condition, are on immunosuppressants, or take blood thinners like warfarin. Cat's claw can affect immune activity and might interact with prescription drugs. Pregnant and breastfeeding people should avoid it; safety in those groups isn’t established.

When buying, check the label for the Latin name Uncaria tomentosa and a clear dose per serving. Prefer products that list active compound levels or use a standardized extract. Look for third-party testing (USP, NSF, or a lab certificate) to avoid contamination with heavy metals or microbes. Skip supplements with long, vague ingredient lists or hidden proprietary blends.

If you want to try cat's claw, tell your doctor, especially if you take other medications. Track changes—pain levels, digestion, or any side effects—so you can decide whether it’s helping. If you notice unusual symptoms like fever, rash, or signs of lowered blood pressure, stop and seek medical advice.

Bottom line: cat's claw can be a useful herbal option for some people, but use it thoughtfully, pick tested products, and check with a clinician if you have chronic conditions or take regular meds.