How did the pirates treat scurvy?

Pirates often treated scurvy, a disease caused by a deficiency of vitamin C, by consuming citrus fruits like lemons and limes, which were known to help prevent and cure the illness. They sometimes carried barrels of these fruits on long voyages, although the availability could vary. In addition to citrus, pirates would also consume other fresh produce when possible, as well as sauerkraut and pickled vegetables, which provided some vitamin C. Ultimately, the understanding of scurvy's causes and prevention was limited, so treatments were not always effective.