by not doing waste food, everything needs to be arranged as economically as possible, especially in terms of food that covers the needs of many people, because the loss of food or crop failure is one of the causes of starvation which is a disaster for everyone, therefore buying food that is in accordance with the portion that you eat without being excessive is much better.
This is not only about saving, but waste in any case is indeed very bad for life and the economy because it can be very wasteful if it cannot be consumed optimally, but for daily needs I think everyone will definitely shop according to what they need even though it also depends on their own economic capabilities. And for crop failure, it is just a pretty bad disaster and can have an effect on increasing the price of basic goods in the living environment because it can create a shortage of goods that are always needed and sought after by many people in this life.