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Modeling dietary fiber intakes in U.S. adults in National Health and Nutrition Examination Survey (NHANES) 2003–2006
Author(s) -
Fulgoni Victor L,
Liska DeAnn J,
Almedia Nelson G,
O'Neil Carol E,
Nicklas Theresa A
Publication year - 2010
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.24.1_supplement.745.1
Subject(s) - calorie , national health and nutrition examination survey , dietary fiber , whole grains , medicine , fiber , environmental health , zoology , serving size , food science , population , chemistry , biology , organic chemistry
Over 90% of adults do not obtain the Adequate Intake (AI) for dietary fiber (DF). Using only reliable recalls in NHANES 2003–2006, we modeled the following changes to assess impact on usual DF intakes in US adults 19+ yrs: 1) increase all fiber containing foods by 10, 25, 50, or 100%; 2) increase fiber content of low fiber grain products to a) a good source level (2.5 g/serving) or b) an excellent source level (5.0 g/serving); and 3) increase currently available whole grain foods to meet recommendations. With each scenario, usual DF intake was determined using the National Cancer Institute method. Baseline DF intake was 15.7 g/d with 96% of adults not obtaining the AI for DF and 92% not obtaining the Daily Value of 25 g/d. Increasing DF containing foods 10, 25, 50, or 100% increased DF intake to 16.9, 18.9, 22.1, and 28.5 g/d, respectively with a concomitant increase in calories of 104, 260, 521, 1042 kcal/d, respectively. Adding fiber to low DF grain foods to 2.5 or 5.0 g/serving resulted in DF intakes of 24.7 and 39.1 g/day, respectively without an increase in calories. Increasing consumption of currently available whole grain foods could be expected to increase fiber intake to 25.3 g/day but with an additional 1266 kcal/d. Consuming the recommended level of DF is challenging for most people; adding fiber to low fiber grain products and increasing DF concentration in foods selected will be essential to meet recommendations without increasing calories. (Supported by USDA and Kellogg Company)