Sanji noticed Usopp sinking in his seat, but said nothing. He'd obviously seen another patient that worried him, but if the sniper needed help he'd ask for it. Or start making frantic gestures. He'd know in either case.

As for the 'food'... "Tastes like wood," the chef mumbled. "But it's edible." Somehow. It was food and yet not. He wouldn't feed it to his crew regularly, that was for sure. It was probably a good thing that there was only so much breakfast in the bag he'd have to stomach.