Eating only fruits and vegetables or drinking only water a day means that some people can keep this record for about a week. People who don't eat staple food for a day will not do much harm to the human body, but will strengthen their physique, but it is best not to persist for too long, just try one day a week, and don't put too much pressure on yourself, otherwise the body will be overwhelmed.
In the whole process, the body is actually starving. At this time, the mental state will be resisted by personal imagination, otherwise it will be difficult to stick to the past. If you can stick to it, then body fat will really decrease. After all, the human body needs natural consumption every day. If we don't eat, the body's energy can't be replenished, and what we consume is the body's own storage. When we consume to a certain extent, the body will begin to show signs of losing weight.