Astanga Hrudaya
तस्मात्तं विधिवद्युक्तैरन्नपानेन्धनैर्हितैः। पालयेत्प्रयतस्तस्य स्थितौ ह्यायुर्बलस्थितिः॥७२॥
so it should be preserved with great effort, by the proper use of suitable foods and drinks which are the forms of advantageous fuel; on its normalcy depend the life span, and condition of strength of the person.
english translation
tasmAttaM vidhivadyuktairannapAnendhanairhitaiH। pAlayetprayatastasya sthitau hyAyurbalasthitiH॥72॥
hk transliteration by Sanscript