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The Nature of NutritionA Unifying Framework from Animal Adaptation to Human Obesity$
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Stephen J. Simpson and David Raubenheimer

Print publication date: 2012

Print ISBN-13: 9780691145655

Published to Princeton Scholarship Online: October 2017

DOI: 10.23943/princeton/9780691145655.001.0001

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Mechanisms of Nutritional Regulation

Mechanisms of Nutritional Regulation

(p.35) Three Mechanisms of Nutritional Regulation
The Nature of Nutrition

Stephen J. Simpson

David Raubenheimer

Princeton University Press

This chapter focuses on how animals are able to regulate their intake and use of multiple nutrients. To regulate the balance of nutrients eaten, an animal needs to assess the composition of available foods in relation to its nutritional requirements. Integration of information about food composition and nutritional state occurs both at the periphery, by nutrient-specific modulation of taste receptors, and more centrally as signals from systemic and peripheral sources converge onto the neural circuits that control feeding behavior. Meanwhile, postingestive regulatory responses can assist in rebalancing an imbalanced nutrient intake. Once digested and absorbed across the gut, nutrient supplies can be further rebalanced by differentially voiding excess nutrients and conserving nutrients that are in limited supply.

Keywords:   animal nutrition, multiple nutrients, food composition, nutritional requirements, nutritional state, taste receptors, feeding behavior, postingestive regulatory responses, gut, nutrient intake

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