According to the Pantone Color Institute, the color red increases blood pressure, heart rate, and appetite. Yellow increases energy, happiness, and—you guessed it—appetite. If any of the rooms in your house are painted in the warm colors of red, orange, or yellow—especially the kitchen or dining room—you are subliminally urging yourself to eat more.
On the other hand, the color blue has been shown to be an appetite suppressant. Because blue rarely occurs as food in nature (more often indicating rot or mold that can make you ill), humans have no appetite response to it. Paint the kitchen aqua
, buy a blue light
for your fridge, or serve dinner on blue dishware to help fend off cravings.