Approximately two tablespoons of lime juice equal the juice in one lime, a green citrus fruit with a sour pulp. Limes are typically smaller than lemons. Types of limes include Persian and Key.
Limes are used to improve the flavor of beverages and food. Lime juice is used as an ingredient in some cocktails. Essential oils of lime are used in cleaning products, aromatherapy and perfumes.
Limes are a dietary source of vitamin C. In the 1800s, British sailors were given limes to ward off the nutritional disorder scurvy. The use of limes was considered a military secret, because it provided an advantage in allowing sailors to stay healthy while at sea for long periods.