My interesting diet tips are eat early and don’t nosh between meals. I mean, I can pack it away.

In this quip Burnett uses self-deprecating humor to undercut the solemnity of “diet advice.” The first sentence offers conventional, almost old-fashioned counsel—eat earlier and avoid snacking—then she pivots to a comic confession: despite knowing the rules, she can “pack it away,” i.e., eat a lot. The joke depends on the contrast between prescriptive restraint and candid appetite, a persona Burnett often cultivated: relatable, unpretentious, and willing to be the butt of her own joke. The line also gently satirizes celebrity lifestyle guidance by implying that simple habits, not glamorous secrets, are what people actually rely on—when they can.