The Compendium of Caraka 3.1.18

3.1.18

lavaṇaṃ punarauṣṇyataikṣṇyopapannam, anatiguru, anatisnigdham, upakledi, visraṃsanasamartham, annadravyarucikaram, āpātabhadraṃ prayogasamasādguṇyāt, doṣasaṃcayānubandhaṃ, tadrocanapācanopakledanavisraṃsanārthamupayujyate/

Salt, moreover, is endowed with heat and sharpness, is not excessively heavy, not excessively unctuous, moisture-producing, capable of laxation, produces relish in food substances, is agreeable on immediate intake due to the perfection of immediate administration, and its succession brings about an accumulation of doshas; it is used for appetizing, digesting, moistening, and laxation.