[Smiling at Vash, and then patting Marshmallow as she wriggles in his arms. The kitten calms as soon as she's being petted properly.]
I'd hate to deny her what she loves, but it's for her own good. Perhaps if we stick to tuna and eliminate the rest? And if she loses some weight then we could give her a treat once in a while. I'm hoping Marshmallow will encourage her to be more active.