Constipation: Primarily, the ample amount of acids present in lime helps clear the excretory system by washing and cleaning off the tracts, just as some acids are used to clean floors and toilets. The roughage in lime is also helpful in easing constipation, but the most beneficial element is the high acidity. An overdose of lime juice with salt also acts as an excellent purgative without any side effects, thereby providing relief from constipation.