お昼はよく召し上がりましたか？ — Did you eat well at lunch? (Care · Greeting, Friendly to Senior, JLPT N4)

Gesture & etiquette

A relaxed, friendly check-in tone — not clinical. If they ate little, follow up gently: '何かお口に合わないものがありましたか？' (Was there something that didn't suit your taste?) rather than expressing worry directly.

Using '召し上がる' (meshiagaru) instead of '食べる' (taberu) shows proper respect for the senior. This honorific verb elevates their action and signals that you view them with esteem — a small linguistic choice that significantly impacts how seniors feel about their caregiver.