Bhagavad Gita 17.8

आयु:सत्त्वबलारोग्यसुखप्रीतिविवर्धना: ।
रस्या: स्निग्धा: स्थिरा हृद्या आहारा: सात्त्विकप्रिया: ॥

āyu:-sattva-balārogya-sukha-prīti-vivardhanā:
rasyā: snigdhā: sthirā hṛdyā āhārā: sāttvika-priyā: – 8

Sāttvika food enhances longevity, spiritual strength, health, happiness and contentment. Food items that are delicious, soothing, sustaining and pleasing to the heart are dear to the sāttvikas.