Can eat, generally overnight can not eat the vegetable family are large leafy greens vegetables, because through the night and the role of ingredients will produce some chemicals cause cancer, and tomato and egg sauce salt enough, if placed in the refrigerator, you can rest assured to eat. In addition I would like to express a point of view, a healthy diet is necessary, but there is no need to worry about every place, in the past when the poor did not eat, what leftovers do not care about, live a long life of a lot of people. A lot of dietary supplements pay attention to is the amount, not up to that amount, our body's own immune system can be solved, such as eating crayfish shrimp head metal content exceeds the standard will cause cancer, but it must be every day to eat a large number of crayfish head continuously for decades. So don't worry about your problem