Madhvaon Brahma Sūtra 3.4.28
Dvaita Vedānta
Sūtra
सर्वान्नानुमतिश्च प्राणात्यये तद्दर्शनात्
sarvānnānumatiśca prāṇātyaye taddarśanāt
Sūtra translation
And the concession for accepting all food is meant to be used only when life is in danger as it is seen from scripture*
The Sruti which appears to give permission to ac- cepting all food only refers to the occasion when life is in danger. The text is : “ Even if he should eat every- thing (and anything),—he who knows Brahman thus, he becomes just the same (becomes released) ” ; for the following Chandogya text shows (the above conclusion to be true): “ If I had not eaten of thy barley, said the sage, I could not have lived, but now the drink of water I can have at my pleasure ” (Ch. I. 10.4).