The motive behind USDA Food Intake Patterns development is to initiate the guidelines of dietary guidelines recommendations.
USDA which stands for the united states department of agriculture is agencies that control farming industry of America. The main goal of this agency is to help the farmer by providing subsidies on various products, ensuring the quality of food, etc.
This department managed various approaches that are dealing with i food, agriculture, agriculture resources, etc.
1 is long term because it’s talking about a process that took years. 2 is short term because the population boom was very sudden. 3 is long term because the effect spans centuries.