Pata de Vaca (Bauhinia forficata) is a plant traditionally used in South American herbal medicine, particularly in Brazil, for managing blood sugar levels in people with diabetes. The connection to the "Pancreatic Tail" body system is indirect and primarily rooted in traditional beliefs that the plant can help regulate pancreatic function and support glucose metabolism. In folk medicine, teas and extracts made from Pata de Vaca leaves have been used as natural remedies for diabetes, with the pancreas being a central organ in glucose regulation. The rationale is that by helping to control blood sugar, Pata de Vaca supports pancreatic health—though most traditional references do not specifically mention the "tail" of the pancreas, but rather the organ as a whole.

Scientific research on Bauhinia forficata is limited, but some animal studies suggest hypoglycemic effects, possibly due to flavonoids and other phytochemicals. However, robust clinical trials in humans are lacking, and there is insufficient evidence to confirm a direct effect on pancreatic tissue or its “tail.” Thus, while its use is justified by tradition, the evidence base is modest, and its effects on the pancreas itself, especially the tail region, remain unproven.