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Lemons and limes are highly acidic citrus fruits. Limes are green, small, and generally more acidic than lemons. Lemons are yellow and larger than limes. Both fruits have good nutritional qualities. There pH is also different take a look at the picture below.

Limes and lemons are from the same citrus fruit family, rich in vitamin C but different in color. Limes are green and smaller, whereas lemons are yellow and big in size. Despite the differencein flavor, color and size; limes andlemons have the same nutritional benefits and are low in calories.