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. 2026 Sep 18;13:1930409. doi: 10.3389/fnut.2026.1930409

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Copyright © 2026 Ong, Lim, Sin, Khoo, Chan and Aung.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Panel A shows a plate with two apple slices of varying sizes, labeled A and B. Panel B displays a plate with two shrimp of varying sizes, labeled A and B. Panel C presents a plate with four different cookies or crackers, labeled A, B, C, and D. — Examples of guide photographs with discrete units. (A) Apple, sliced, (B) Prawn, king, deshelled, (C) Biscuit, assorted.