Final answer:
The 2015 Dietary Guidelines for Americans and MyPlate are key guidance documents used to facilitate the consumption of a nutritionally adequate diet, while the EAT-Lancet Commission offers insight on achieving a sustainable and healthy global food system.
Step-by-step explanation:
Policymakers and nutrition and health professionals utilize certain guidance documents to help individuals and their families consume a healthy, nutritionally adequate diet. The 2015 Dietary Guidelines for Americans is an evidence-based resource with recommendations for dietary changes where understanding nutrient and energy density is vital for making healthier food choices. These guidelines emphasize the importance of consuming a varied diet while managing calorie intake through physical activity as a crucial aspect of weight management.
MyPlate is an updated tool by the USDA that simplifies healthy eating patterns using a visual guide; it advocates for half of the plate to be filled with fruits and vegetables, one-quarter with whole grains, and the remaining quarter with protein, accompanied by low-fat dairy products.
The EAT-Lancet Commission report is another valuable resource that provides a universal reference for a healthy diet, aiming to address global nutrition issues and promote sustainable food systems by reducing climate change impacts.