By 2060, the number of adults aged ≥65 y is expected to double, and the ≥85 y segment of the population is expected to triple in the United States. US federal nutrition guidance is based on the premise that healthy diets contribute to delaying the onset and progression of many age-related diseases and disability. Yet, little is known about the dietary intakes or nutritional needs across the older adulthood age span. This review aims to identify community-based cohorts that collected information on dietary intake of adults ≥65 y in the United States. Thirty-two cohorts met all inclusion criteria. We summarized information on the cohorts' design, demographics, and diet assessment. We also identified key gaps in the existing databases that, if filled, could enhance their utility to address certain research questions. This review serves as a valuable inventory of cohorts that can be leveraged to answer key questions about the diet and nutritional needs of the oldest old, who represent the fastest growing segment of the population in the United States. Statement of Significance: This review provides an overview of community-based cohorts that collected information on dietary intake of adults aged ≥65 y in the United States and summarizes information about design, demographics, and diet assessment. Key gaps in the existing databases are identified, that, if filled, could enhance their utility to address certain research questions and obtain more robust evidence about the diet and nutritional needs of older adults, who represent the fastest growing segment of the US population.