The so-called crossing the valley means not eating, which comes from the practice of Taoism, but not eating nothing, but eating some dried fruits in the mountains and so on. Stars eat nothing, that is, eat less and only eat nutritious meals with specific needs. They can't eat whatever they want like ordinary people. There are many stars on the Internet, Weibo, sharing his recipes. For example, Crystal tells the secret of losing weight in a program and supports eggs and cucumbers for a week. For example, Guan Xiaotong once shared his healthy sandwich practice; There is also a week's cookbook shared by actor Andrew, which is very detailed and can be copied appropriately, but it should also be done according to one's ability. After all, everyone's workload is different every day. If you eat less manual work, you will have no energy to work.