As the first step in the development process of the Dietary Guidelines for Americans, 2025-2030 (Dietary Guidelines), the U.S. Departments of Health and Human Services (HHS) and Agriculture (USDA) are releasing proposed scientific questions for public comment. The public comment period will be open for 30 days starting April 15, 2022, through May 16, 2022 at 11:59 PM ET. HHS and USDA are committed to transparency and providing opportunities for public participation during this five-step process leading up to the release of the Dietary Guidelines in 2025.