In 1980, the U. S. Department of Health and Human Services (DHHS) and the U. S. Department of Agriculture (USDA) published an expanded food recommendation called the , which have been revised every five years since then to reflect new scientific information.

In 1980, the U.S. Department of Health and Human Services (DHHS) and the U.S. Department of Agriculture (USDA) published an expanded food recommendation called the Dietary Guidelines for Americans, which have been revised every five years since then to reflect new scientific information.

Explanation:

The Dietary Guidelines for Americans is recognized as a useful resource to maintain a healthy diet and get the nutrients your body needs to prevent diseases

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.