![]() ![]() However, research on the effects of red/blue food coloring on the wanting and liking of food has produced heterogeneous results. Therefore, it is not surprising that the color red is considered appetizing, whereas blue acts as an appetite suppressant (for reviews see Spence et al., 2010 Zellner, 2013 Wadhera and Capaldi-Phillips, 2014 Spence, 2015).īased on these observations, the adding of coloring to food and drink has a long history in the food industry. In contrast, there aren’t many naturally occurring blue-hued foods, and sometimes ‘blue’ even indicates non-edibility (e.g., mold). The food color red is very common in nature and is typical for ripe fruits and fresh meat. Color signals the edibility and the nutritional value of food ( Spence, 2015). ![]()
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