In our modern age international trading is much easier that it was before. Most people think that countries should be self-sufficient to produce all types of food and import food as little as possible. Before commenting on my opinion I will explain both points of view.
On the one hand, each country has different weather conditions and every crops need specific weather to grow. It is important to eats every types of food becuase from that we get proteins and vitamins. Firstly, one country cannot grow every type of crops because of environmental diversity. For instance, to grow apples needs cold temperature and countries like hot weather such as UAE, South Africa and Saudi Arabia these countries cannot grow therefore, they have only import options. Hence, a country will have to rely on other nations for food.
On the other hand, countries try to make self-dependent because they charges lots of money for importing foods and if any difficult situation occurs like pandemic then people face issues. Moreover, scientists invented various technology, using technology farmers can grow any products at any weather conditions. For example, polyhouse is the best example in that farmers can produce any things. Furthermore, if farmers grow all food then they easily supply food in local markets and people can take that without any chemicals or preservatives. This means they get healthy food.
In conclusion, I partly believe that importing is necessary as different crops require various environmental factors to grow, but using technology they can grow.