A child's nutrition is too important to hand to a generic plan. So this is guidance and literacy: it helps a household understand growth, balance a tiffin, and notice a gap worth a doctor's look. It does not diagnose, and it does not prescribe a clinical diet.
Everything is written for the kitchen and the market a family actually has — not an idealised pantry. The aim is a tiffin a child will eat, made from what the corner shop sells, at a cost the month can carry.
When a screen or a chart points past guidance — a stalled growth curve, a suspected deficiency — the next step is a clinician, with the record ready to share. The nudge knows when to stop being a nudge.