<P> Staple foods vary from place to place , but typically they are inexpensive or readily - available foods that supply one or more of the three organic macronutrients needed for survival and health : carbohydrates , proteins , and fats . Typical examples of staples include tubers and roots ; and grains , legumes , and other seeds . Early agricultural civilizations valued the foods that they established as staples because , in addition to providing necessary nutrition , they generally are suitable for storage over long periods of time without decay . Such nonperishable foods are the only possible staples during seasons of shortage , such as dry seasons or cold temperate winters , against which times harvests have been stored . During seasons of plenty , wider choices of foods may be available . </P>
<P> Staple foods vary from place to place , but typically they are inexpensive or readily - available foods that supply one or more of the three organic macronutrients needed for survival and health : carbohydrates , proteins , and fats . Typical examples of staples include tubers and roots ; and grains , legumes , and other seeds . Early agricultural civilizations valued the foods that they established as staples because , in addition to providing necessary nutrition , they generally are suitable for storage over long periods of time without decay . Such nonperishable foods are the only possible staples during seasons of shortage , such as dry seasons or cold temperate winters , against which times harvests have been stored . During seasons of plenty , wider choices of foods may be available . </P>
why are grains a staple around the world
why are grains a staple around the world
in addition to providing necessary nutrition , they generally are suitable for storage over long periods of time without decay
in addition to providing necessary nutrition , they generally are suitable for storage over long periods of time without decay