The appearance of food can stimulate neurons in the inferior optic nerve and increase or decrease people's appetite; But color psychologists believe that because there are not many blue foods in nature, blue foods are unnatural, which will reduce people's blood pressure and appetite. The reason why blue food helps to lose weight is that blue food can make people's brain secrete hormones that refuse to eat, which not only reduces appetite, but also slows down eating speed and produces satiety.

Although blue food has a calming effect, eating too much will have small sequelae, just as excessive sedation may make people depressed. When eating blue food, you can mix some yellow things. In Japan, some people use it to start slimming powder, that is, grinding soybeans into powder, and then adding blue food pigment, which looks like a toxic blue chemical. For those who need to lose weight, this powder can be added to various foods, such as soup, rice, bread, vegetables and so on. It will not change the taste of food at all, but will make people involuntarily reduce their appetite. All kinds of delicious food even look a little moldy. The blue series table decoration is equally wonderful.

Blue food is rare in nature, but some tips can still be used, such as trying to put food on a dark blue plate and matching tableware is blue; Or replace the light in the refrigerator with a blue light bulb, which invisibly reduces your desire for food and achieves the effect of slimming; Otherwise, buy a pair of popular blue sunglasses.

There are not many blue foods in nature. Blueberries are one of them. There is also a rare blue-purple potato and some berries. In addition, natural creatures have the ability to avoid eating toxic food. When humans first foraged in primitive times, they thought that blue, purple and black might be deadly toxic food colors, so it was not easy to try.