Food cravings is experienced by many people. Sometimes people will go out of their way to obtain the desired foods which is craved.
There is one key element that is part of the craving. It is sodium chloride, the common salt.
Common salt is important for metabolism, and sometimes it is met through food or exceeded. Studies have shown that when a person eats low salt foods, there seems to be a strong appetite for salty foods. This means that more salty foods become more delicious.
For Western World, there is a strong desire for the food chocolates. The craving for chocolate is the craving for sweet foods. Chocolate has an optimal balance of sugar and fat which makes the taste very good. Chocolate cravings is shown more frequent in women. This craving is influenced by hormonal changes. The cravings peak at time of menstruation and also during pregnancy.
As omnivores, the taste seeks to have variety in the foods.