Do visual cues like cup size affect how much liquid people drink?

Visual Cues & Hydration1 min readUpdated June 4, 2026

What the Evidence Shows

We analyzed one assertion on whether cup size affects how much liquid people drink, and all 55.0 supporting pieces of evidence suggest that the size or number of cups used does not change the total amount consumed. Whether liquid is served in one large cup or split across several smaller ones,...

Evidence from Studies

Supporting (0)

No supporting evidence found

Contradicting (0)

No contradicting evidence found

Primary Studies (1)

Effects of visual deprivation and portion size on food-related perception and behavior

DOI: 10.4162/nrp.2025.19.3.464

Update History

Published

June 4, 2026·Last updated June 4, 2026

Invalid DateNew topic created from assertion