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Communication

Defining Nutritional and Functional Niches of Legumes: A Call for Clarity to Distinguish a Future Role for Pulses in the Dietary Guidelines for Americans

1
Department of Food Science and Human Nutrition, Colorado State University, Fort Collins, CO 80523, USA
2
Cancer Prevention Laboratory, Colorado State University, Fort Collins, CO 80523, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Bahram H. Arjmandi
Nutrients 2021, 13(4), 1100; https://doi.org/10.3390/nu13041100
Received: 22 February 2021 / Revised: 23 March 2021 / Accepted: 25 March 2021 / Published: 27 March 2021
(This article belongs to the Special Issue Food Patterns in Chronic Disease Prevention and Control)
Legume food crops can contribute to the solution of diet-related public health challenges. The rich diversity of the botanical family Fabaceae (Leguminosae) allows legumes to fill numerous nutritional niches. Pulses (i.e., a subgroup of legumes including chickpeas, cowpeas, dry beans, dry peas, and lentils) are a nutrient-dense food that could play a key role in eliminating the dramatic underconsumption of dietary fiber and potassium, two dietary components of public health concern, all while maintaining a caloric intake that promotes a healthy weight status. However, incorrect use of terminology—in the commercial and scientific literature as well as in publications and materials prepared for the consuming public—creates confusion and represents a barrier to dissemination of clear dietary guideline messaging. The use of accurate terminology and a simple classification scheme can promote public health through differentiation among types of legumes, better informing the development and implementation of nutritional policies and allowing health care professionals and the public to capitalize on the health benefits associated with different legumes. Although inconsistent grouping of legumes exists across countries, the recently released 2020–2025 Dietary Guidelines for Americans (DGA) were chosen to illustrate potential challenges faced and areas for clarification. In the 2020–2025 DGA, pulses are included in two food groups: the protein food group and ‘beans, peas, lentils’ vegetable subgroup. To evaluate the potential of pulses to contribute to intake of key dietary components within calorie recommendations, we compared 100 kilocalorie edible portions of pulses versus other foods. These comparisons demonstrate the unique nutritional profile of pulses and the opportunity afforded by this type of legume to address public health concerns, which can be greatly advanced by reducing confusion through global harmonization of terminology. View Full-Text
Keywords: legumes; pulses; dietary fiber; Dietary Guidelines for Americans; oilseed legumes; nutrition; beans; peas; lentils legumes; pulses; dietary fiber; Dietary Guidelines for Americans; oilseed legumes; nutrition; beans; peas; lentils
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MDPI and ACS Style

Didinger, C.; Thompson, H.J. Defining Nutritional and Functional Niches of Legumes: A Call for Clarity to Distinguish a Future Role for Pulses in the Dietary Guidelines for Americans. Nutrients 2021, 13, 1100. https://doi.org/10.3390/nu13041100

AMA Style

Didinger C, Thompson HJ. Defining Nutritional and Functional Niches of Legumes: A Call for Clarity to Distinguish a Future Role for Pulses in the Dietary Guidelines for Americans. Nutrients. 2021; 13(4):1100. https://doi.org/10.3390/nu13041100

Chicago/Turabian Style

Didinger, Chelsea, and Henry J. Thompson. 2021. "Defining Nutritional and Functional Niches of Legumes: A Call for Clarity to Distinguish a Future Role for Pulses in the Dietary Guidelines for Americans" Nutrients 13, no. 4: 1100. https://doi.org/10.3390/nu13041100

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