The lights could affect your diet.
But if you use it strategically, it could help you make healthier food choices. Replacing your current fridge bulbs with LED or fluorescent ones (which produce more blue light) could subconsciously guide your eating habits, and the exposure would be brief enough to not affect your circadian rhythm, says Matt Berenc, CSCS, Beverly Hills-based director of the Equinox Fitness Training Institute.
More research is needed to determine the long-term relationship between blue light and appetite, so don’t swap all the bulbs in your home. In the meantime, filling your fridge with it—or even eating off of blue plates, Berenc says—can help you stick to your nutrition goals.