Mahabharata 14.19.37

भुक्तं भुक्तं कथमिदमन्नं कोष्ठे विपच्यतेकथं रसत्वं व्रजति शोणितं जायते कथम्तथा मांसं च मेदश्च स्नाय्वस्थीनि च पोषति

bhuktaṃ bhuktaṃ kathamidamannaṃ koṣṭhe vipacyatekathaṃ rasatvaṃ vrajati śoṇitaṃ jāyate kathamtathā māṃsaṃ ca medaśca snāyvasthīni ca poṣati

Our plain-language meaning of this verse is waiting for scholar review.