Tiger nut (Cyperus esculentus) has a long history of use in traditional medicine, especially in Africa and parts of Asia. In some folk traditions, tiger nut is used as a remedy to support kidney health and to help manage or prevent kidney stones. The rationale behind its use is primarily based on its perceived diuretic properties, which are believed to help "flush" the kidneys and reduce stone formation. Some traditional healers also suggest that its natural antioxidants and minerals may support renal function.

However, direct scientific evidence supporting the efficacy of tiger nut for treating or preventing kidney stones is minimal. A few animal studies have explored the general antioxidant or anti-inflammatory properties of tiger nut, but there is no robust clinical data or well-controlled human studies demonstrating its effectiveness specifically for kidney stones. Most of the available literature highlights its nutritional value (fiber, healthy fats, vitamins, and minerals) rather than any specific nephroprotective or litholytic (stone-dissolving) effects.

In summary, the use of tiger nut for kidney stones is rooted in traditional practices rather than scientific validation. Anyone considering its use for kidney stones should consult a healthcare professional, as evidence for its efficacy in this context is weak and primarily anecdotal.