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Removing Potatoes from Children's Diets May Compromise Potassium Intake
Theresa A Nicklas1, Yan Liu2, Noemi Islam2
1USDA/Agricultural Research Service Children's Nutrition Research Center, Department of Pediatrics, Baylor College of Medicine, Houston, TX; and tnicklas@bcm.edu.
Advances in Nutrition (Bethesda, Md.)
|January 17, 2016
Summary
Replacing white potatoes with other vegetables in children's diets significantly lowered intake of 20 nutrients. White potatoes are a key source of potassium, contributing 11% to daily intake in this study.
Area of Science:
- Nutritional Science
- Dietary Analysis
- Public Health Nutrition
Background:
- White potatoes are often overlooked as a nutrient source.
- Understanding the nutritional impact of dietary substitutions is crucial for public health, especially in children's diets.
Purpose of the Study:
- To evaluate the nutritional consequences of substituting white potatoes with commonly consumed vegetables in children's diets.
- To compare the nutrient profiles of white potato composites (PC) and vegetable composites (VC) in a nationally representative sample of children aged 2-18 years.
Main Methods:
- Utilized the National Health and Nutrition Examination Survey (NHANES) 2005-2012 24-hour dietary recall data.
- Developed two replacement models: one for potato consumers and one for non-potato vegetable consumers.
- Analyzed nutrient contributions per cup equivalent and mean daily nutrient intake changes following substitution, with covariate adjustment for statistical significance (P < 0.002).
Main Results:
- Replacing 1 cup of vegetable composite (VC) with 1 cup of potato composite (PC) led to significantly lower mean intakes for 20 out of 23 nutrients studied.
- Higher mean intakes of total sugars, folate, and calcium were observed when VC replaced PC.
- White potatoes (PC) contributed significantly to daily intake, providing 11% of potassium, 13% of dietary fiber, and 6% of total energy.
Conclusions:
- Substituting white potatoes with other vegetables in children's diets can lead to a significant reduction in the intake of numerous essential nutrients.
- White potatoes are an important dietary source of potassium, contributing substantially to meeting recommended intake levels.
- Dietary strategies incorporating white potatoes may be beneficial for ensuring adequate potassium consumption in children.
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