The Compendium of Kāśyapa 3.7.9.p1

3.7.9.p1

āhāraścaturvidhaḥ ṣaḍrasāśrayo viṃśativikalpogurulaghuśītoṣṇasnigdharūkṣamandatīkṣṇasthirasaramṛdukaṭhinaviśadapicchilaślakṣṇakharasūkṣmasthūlasāndradravavikalpāt tena tvagādayaḥ śukrāntā dhātava āpyāyante

Food is of four kinds, based on the six tastes, and of twenty varieties due to the differentiation of heavy, light, cold, hot, unctuous, dry, dull, sharp, stable, mobile, soft, hard, clear, slimy, smooth, rough, minute, gross, dense, and liquid. By it, the bodily tissues, from the skin to semen, are nourished.