गोविन्द भाष्य (श्रील बलदेव विद्याभूषण - अचिन्त्यभेदाभेद वेदान्त ब्रह्मसूत्र भाष्य सटीक)

abādhāc ca
abādhāt—because of being no impediment; ca—also.
Also because there is no impediment.
Purport by Śrīla Baladeva Vidyābhūṣaṇa
In times of emergency one has permission to eat any food, and such eating does
not contaminate the heart and the mind. The sūtra explains that this eating does
not present an impediment to attaining transcendental knowledge.
Sūtra 30
api smaryate
api—also; smaryate—in the Smṛti-śāstra.
Also in the Smṛti-śāstra.
Purport by Śrīla Baladeva Vidyābhūṣaṇa
In Manu-saṁhitā (10.104) it is said:
jīvitātyayam āpanno
yo 'nnam atti yatas tataḥ
lipyate na sa pāpena
padma-patram ivāmbhasā
"One who in an emergency, in order to save his life, eats whatever is available is
not touched by sin. He is like a lotus leaf untouched by water."
Only in an emergency, and not at other times, is one allowed to eat anything
that is available. Therefore the meaning here is that the person situated in
transcendental knowledge has permission to eat any food in certain circumstances,
not that he is ordered that he must eat any food. The scriptures clearly forbid the
eating of impure foods when there is no emergency.