Rising consumption is the biggest problem of our time. To buy in a sustainable way, consumers are facing a difficult challenge because it is more expensive to buy fresh products than processed ones, increasing the consumption of plastics. It is important to know information and to read labels about products we buy to try to be healthy. Citizens should choose smart shopping that helps to conserve natural resources (reducing plastic packaging) and waste must be avoided (freezing and recycling leftover food at home, hospitals, schools...) The market is dominated by supermarket chains, so food takes a very long way to reach people. Buying in local markets with seasonal products we could save energy necessary for food transport, as well as having a positive impact on the environment. Nowadays, we can buy everything very easily, from anywhere in the world and it is not positive for the environment. To avoid the problem of packaging, there are shops where you can shop using your own containers and even get a discount for doing so. Such initiatives encourage sustainable shopping. If we focus on the individual contribution of each person, we should sort the waste to recycle them using sustainable means among other measures. We all are aware of daily food waste in most developed countries. In order to mitigate this, supermarkets could donate unsold food to food banks. It would have two benefits: helping poor people and looking after the environment. Many other activities could be implemented to promote sustainability, for example, farms school for children or adults, where they can learn agricultural tasks, and sell ecological and seasonal products.