Poster Topical Area: Aging and Chronic Disease
Poster Board Number: 69
Objective: Meeting nutritional needs is imperative to optimal aging. This is especially true with the challenges of generally reduced intakes, greater rates of physical limitations and changing physiological needs. We previously showed up to 40% of adults aged 51 and older did not meet their daily protein requirement. This analysis was to understand generational differences in macro-/micronutrient intakes and to identify the areas posing the greatest nutritional risk in this population.
Methods: Dietary intakes from adults over 50 were examined from the 2005-2014 National Health and Nutrition Examination Survey (NHANES). Data from 11,728 adults were stratified into 51-60 yrs (n= 4,021), 61-70 yrs (n=3,850), and over 70 yrs (n=3,857) for analysis. Dietary intakes were assessed using a validated multiple pass in-person dietary recall. Estimates of the nutrient were provided by USDA using standard databases and were compared to Dietary References Intakes to identify potential areas of nutritional risk. Differences in raw and energy-adjusted intakes were compared, as well as the proportion meeting the Recommended Dietary Allowance (RDA) and Estimated Average Requirement (EAR) recommendations. Data were weighted to produce nationally-representative estimates.
Results: Older adults (>70 yrs) had significant lower intakes of energy as well as raw and energy-adjusted macronutrient intakes (p<0.001). No significant differences in protein intakes per 1,000 kcals were observed. In all adults, over 80% were below the EAR for vitamins E and D and 80% were below the RDA for fiber, choline and potassium. Younger adults (51-60 yrs) had significantly higher raw and energy-adjusted intakes of total dietary folate, vitamins C and D, iron, zinc and potassium (P<0.015). Older adults were more likely to be below the recommended level than the preceding age category. Only 50% of adults met the EAR for vitamins A and C, while over 45% of older adults did not meet the RDA for protein.
Conclusions: On the day of record, differences in nutrient intake noted across age groups suggest a greater potential for suboptimal dietary intakes for aging adults. While younger adults display more nutrient dense intakes and lower proportions below recommended levels, there are important areas for improvement to support progression into healthy aging.
Division of Medical Dietetics and Health Sciences, School of Health and Rehabilitation Sciences, College of Medicine, The Ohio State University