The article introduces the updated Healthy Eating Index (HEI-2015), which reflects the 2015–2020 Dietary Guidelines for Americans (DGA). The HEI-2015 retains the same 13 components as the HEI-2010, with the addition of Saturated Fat and Added Sugars replacing Empty Calories. The 2015–2020 DGA explicitly recommend limiting intakes of Added Sugars and Saturated Fats to less than 10% of energy. The HEI-2015 does not have a separate component for excessive energy from alcohol but accounts for all energy from alcohol within total energy. The allocation of legumes has been changed to contribute to all four components, reflecting their importance in a diverse diet. The scoring standards have been maintained, refined, or developed to ensure consistency, face validity, and alignment with the DGA. The article also discusses the interpretation of scores and the use of radar graphs to visualize dietary patterns.The article introduces the updated Healthy Eating Index (HEI-2015), which reflects the 2015–2020 Dietary Guidelines for Americans (DGA). The HEI-2015 retains the same 13 components as the HEI-2010, with the addition of Saturated Fat and Added Sugars replacing Empty Calories. The 2015–2020 DGA explicitly recommend limiting intakes of Added Sugars and Saturated Fats to less than 10% of energy. The HEI-2015 does not have a separate component for excessive energy from alcohol but accounts for all energy from alcohol within total energy. The allocation of legumes has been changed to contribute to all four components, reflecting their importance in a diverse diet. The scoring standards have been maintained, refined, or developed to ensure consistency, face validity, and alignment with the DGA. The article also discusses the interpretation of scores and the use of radar graphs to visualize dietary patterns.