Dietary assessment in older adults presents many unique problems due to the diversity of health states and capabilities that span the population group. Little is known about dietary intakes, body composition, and nutritional status among individuals 75 and older. The National Academies Food and Nutrition Board hosted a virtual workshop series in spring 2022 intended to provide guidance to researchers and clinicians. The workshops aimed to outline considerations relating to different methods of assessing intakes of food and dietary supplements in older adults. The covered topics included current status of dietary and nutrition assessment of older adults and advances and key issues in this topic; nutritional screening of older adults; and nutritional practices, challenges, and policies that affect older adults. This Proceedings highlights presentations and discussions from the workshops.