"Then that is what we'll do. But first, we should make sure to eat our fill, so that we can go as long as possible without another meal should what we seal spoil."

The idea of eating so much that he risks an ache isn't pleasant to Gale, as much as Vayu doesn't seem to care about limits, especially since filling his stomach that drastically tends to leave him feeling drowsy and sluggish. It has a negative effect on his performance, even if Vayu means he can eat so much more without getting to that point than before the Atma. Or, at least Gale is fairly certain of that. What they consume now passes the limits of what should logically fit inside their stomachs even considering a faster digestion and metabolism.

On the other hand, risking going Mad is worse, so Gale turns to his food and focuses on getting a more significant amount down while he considers the best seals to use in the experiment.