Bruce is leaned back in his chair watching the entire time Zerxus is eating, watching him with... satisfaction.

Not for any nefarious reason, but simply because it is satisfying.

He knows the man was hungry and that what he was likely eating before was nowhere near as... indulgent?

He's almost surprised when Zerxus asks his question.

"I can't be positive. I like it, but I've had it for so many years that I've long since forgotten whether it ever had any effect on me or I've just developed a tolerance. At a guess it doesn't."