The country's cuisine has been shaped by the practices of fishing and farming, including the cultivation of the soil for growing crops and raising domesticated animals. Dutch cuisine is simple and straightforward, and contains many dairy products. Breakfast and lunch are typically bread with toppings, with cereal for breakfast as an alternative. Traditionally, dinner consists of potatoes, a portion of meat, and (seasonal) vegetables. The Dutch diet was relatively high in carbohydrates and fat, reflecting the dietary needs of the labourers whose culture moulded the country. Without many refinements, it is best described as rustic, though many holidays are still celebrated with special foods. In the course of the twentieth century this diet changed and became much more cosmopolitan, with most global cuisines being represented in the major cities. The Southern Dutch cuisine consists of the cuisines of the Dutch provinces of North Brabant and Limburg and the Flemish Region in Belgium.