Abstract Body: The Dietary Guidelines for Americans (DGA) 2020-25 recommend limiting added sugar (AS) intake to <10% of calories. Data from the National Health and Nutrition Examination Survey (NHANES) indicate that ~35% of children and 47% of adults consume <10% of calories from AS, while ~1/3 of children and adults consume >15% of calories from AS. Little is known about nutrient intakes, nutrition adequacy, and diet quality across the range of AS intakes. Using data from two dietary recalls from NHANES 2011-2018, we characterized intakes and adequacy of nutrients of public health concern (calcium, fiber, potassium, vitamin D), intakes of key food groups, and diet quality (HEI-2020) among children (2-18 y) and adults (19+ y) across AS intake categories, defined as <10%, 10-15%, and >15% of calories from AS (AS10, AS10-15, AS15). Average AS intake was 13.4% of calories in children and 12.2% of calories in adults. As % of calories from AS increased, intakes of select food groups (whole grain, total dairy, total fruit, total vegetables, and total protein foods) and diet quality decreased in both children and adults. Likewise, intake and adequacy of nutrients decreased in children and adults. The top 10 sources of AS contributed ~70% of total AS in children and adults but only 8-11% and 2-7% of nutrients of public health concern, respectively. “Soft drinks”, “fruit drinks”, “tea”, “cookies & brownies”, “cakes & pies”, “ice cream & frozen dairy desserts” and “candies” were consistently among the top 10 AS sources for both children and adults. Ready-to-eat cereals (RTEC) were the 4th and 9^th AS source, providing ~6% (children) and 3% (adults) of AS. The contribution of RTEC decreased across AS intake categories in both children (AS10: 10.0%; AS10-15: 6.9%; AS15: 4.5%) and adults (AS10: 5.3%; AS10-15: 3.6%; AS15: 2.0%). Conversely, the contribution of “soft drinks”, “fruit drinks”, and “tea” increased across AS intake categories. Total RTEC contributed to all shortfall nutrients (1.6-12.0% in children and 1.4-8.5% in adults), although the contribution varied across AS intake categories. Meanwhile, RTEC only provided 3.1 % of calories in children and 1.9% in adults. These findings can inform the development of targeted strategies to reduce AS from non-nutrient dense sources, while recognizing the nutrient contributions of nutrient-dense sources of AS, such as RTEC.