including seawater, vinegar, cider, a mixture of garlic mustard and horseradish, and finally two oranges and lemons. The results were conclusive, those fed the citrus fruits experienced a remarkable recovery. Whilst citrus fruits were known to have many medicinal benefits, it was by conducting this trial that Lind was able to prove it was the superior treatment. Despite his efforts, it took 40 years for lemon juice to become a regular on the menu in the Royal Navy.