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Cat's claw is a wine that grows in the Amazon rainforest and other tropical areas of Central and South America. They are two different species of cat's claw Uncaria tomentosai and Uncaria guianensis (useful for treating osteoarthritis).

 Health Benefits

Cat's claw is thought to have anti-inflammatory effects and has been used for rheumatoid arthritis and osteoarthritis.

Compounds in cat's claw are thought to block the body's production of inflammation-producing substances called prostaglandins and tumor necrosis factor (TNF).


Cat's claw's immuno-stimulating properties enhance the function of white blood cells to attack and digest carcinogenic substances and harmful microorganisms that may inhibit the growth of cancer cells and tumors.

Cat's claw has a healing effect on the digestive system and good results have been achieved in treating chronic fatigue syndrome.

Side Effects

Side effects may include nausea, headache and dizziness. Pregnant or nursing women or children should avoid cat's claw.