ArticleFrontiers in psychology2020
Effects of Coloring Food Images on the Propensity to Eat: A Placebo Approach With Color Suggestions.
Article in Frontiers in psychology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed.
- The Influence of Food Colors on Emotional Perception and Consumer Acceptance: A Sensory and Emotional Profiling Approach in Gastronomy.Foods (Basel, Switzerland) · 2025Article
- Food Emotional Perception and Eating Willingness Under Different Lighting Colors: A Preliminary Study Based on Consumer Facial Expression Analysis.Foods (Basel, Switzerland) · 2025Article
- Brain activity characteristics of RGB stimulus: an EEG study.Scientific reports · 2023Article
- Ultraprocessed Foods and Obesity Risk: A Critical Review of Reported Mechanisms.Advances in nutrition (Bethesda, Md.) · 2023Review
- Advances in the Potential Application of 3D Food Printing to Enhance Elderly Nutritional Dietary Intake.Foods (Basel, Switzerland) · 2023Review
- Enrichment of Wheat Bread withFoods (Basel, Switzerland) · 2023Article
- Disadvantages of red: The color congruence effect in comparative price advertising.Frontiers in psychology · 2022Article
- What's the Story With Blue Steak? On the Unexpected Popularity of Blue Foods.Frontiers in psychology · 2021Review
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundResearch findings on the appetite-enhancing effect of the color red and the appetite-reducing effect of blue have been inconsistent. The present study used a placebo approach and investigated whether verbal suggestions can enhance color-appetite effects.
methodA total of 448 women participated in two experiments. They viewed images with differently colored sweet foods (original color, blue, red, colorless (black-and-white); experiment 1;
resultsAll colored food items were associated with a lower propensity to eat compared to the food items in the original color. The color suggestion (compared to no suggestion) additionally decreased the propensity to eat blue and black-and-white food items. Colored backgrounds did not influence food wanting.
conclusionThis study demonstrated that red and blue coloring of visual food cues did not have the predicted effects on food wanting. However, the combination of specific food colors with specific color suggestions might be useful to change the willingness to eat sweet products.
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Registered trials
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