Altered feeding patterns in rats exposed to a palatable cafeteria diet: increased snacking and its implications for development of obesity.

<h4>Background</h4>Rats prefer energy-rich foods over chow and eat them to excess. The pattern of eating elicited by this diet is unknown. We used the behavioral satiety sequence to classify an eating bout as a meal or snack and compared the eating patterns of rats fed an energy rich caf...

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Autores principales:	Sarah I Martire, Nathan Holmes, R Fred Westbrook, Margaret J Morris
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4e77fadf12a4460a96d52b55b814e0f5
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spelling	oai:doaj.org-article:4e77fadf12a4460a96d52b55b814e0f52021-11-18T07:50:57ZAltered feeding patterns in rats exposed to a palatable cafeteria diet: increased snacking and its implications for development of obesity.1932-620310.1371/journal.pone.0060407https://doaj.org/article/4e77fadf12a4460a96d52b55b814e0f52013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23565243/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Rats prefer energy-rich foods over chow and eat them to excess. The pattern of eating elicited by this diet is unknown. We used the behavioral satiety sequence to classify an eating bout as a meal or snack and compared the eating patterns of rats fed an energy rich cafeteria diet or chow.<h4>Methods</h4>Eight week old male Sprague Dawley rats were exposed to lab chow or an energy-rich cafeteria diet (plus chow) for 16 weeks. After 5, 10 and 15 weeks, home-cage overnight feeding behavior was recorded. Eating followed by grooming then resting or sleeping was classified as a meal; whereas eating not followed by the full sequence was classified as a snack. Numbers of meals and snacks, their duration, and waiting times between feeding bouts were compared between the two conditions.<h4>Results</h4>Cafeteria-fed rats ate more protein, fat and carbohydrate, consistently ingesting double the energy of chow-fed rats, and were significantly heavier by week 4. Cafeteria-fed rats tended to take multiple snacks between meals and ate fewer meals than chow-fed rats. They also ate more snacks at 5 weeks, were less effective at compensating for snacking by reducing meals, and the number of snacks in the majority of the cafeteria-fed rats was positively related to terminal body weights.<h4>Conclusions</h4>Exposure to a palatable diet had long-term effects on feeding patterns. Rats became overweight because they initially ate more frequently and ultimately ate more of foods with higher energy density. The early increased snacking in young cafeteria-fed rats may represent the establishment of eating habits that promote weight gain.Sarah I MartireNathan HolmesR Fred WestbrookMargaret J MorrisPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 4, p e60407 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sarah I Martire Nathan Holmes R Fred Westbrook Margaret J Morris Altered feeding patterns in rats exposed to a palatable cafeteria diet: increased snacking and its implications for development of obesity.
description	<h4>Background</h4>Rats prefer energy-rich foods over chow and eat them to excess. The pattern of eating elicited by this diet is unknown. We used the behavioral satiety sequence to classify an eating bout as a meal or snack and compared the eating patterns of rats fed an energy rich cafeteria diet or chow.<h4>Methods</h4>Eight week old male Sprague Dawley rats were exposed to lab chow or an energy-rich cafeteria diet (plus chow) for 16 weeks. After 5, 10 and 15 weeks, home-cage overnight feeding behavior was recorded. Eating followed by grooming then resting or sleeping was classified as a meal; whereas eating not followed by the full sequence was classified as a snack. Numbers of meals and snacks, their duration, and waiting times between feeding bouts were compared between the two conditions.<h4>Results</h4>Cafeteria-fed rats ate more protein, fat and carbohydrate, consistently ingesting double the energy of chow-fed rats, and were significantly heavier by week 4. Cafeteria-fed rats tended to take multiple snacks between meals and ate fewer meals than chow-fed rats. They also ate more snacks at 5 weeks, were less effective at compensating for snacking by reducing meals, and the number of snacks in the majority of the cafeteria-fed rats was positively related to terminal body weights.<h4>Conclusions</h4>Exposure to a palatable diet had long-term effects on feeding patterns. Rats became overweight because they initially ate more frequently and ultimately ate more of foods with higher energy density. The early increased snacking in young cafeteria-fed rats may represent the establishment of eating habits that promote weight gain.
format	article
author	Sarah I Martire Nathan Holmes R Fred Westbrook Margaret J Morris
author_facet	Sarah I Martire Nathan Holmes R Fred Westbrook Margaret J Morris
author_sort	Sarah I Martire
title	Altered feeding patterns in rats exposed to a palatable cafeteria diet: increased snacking and its implications for development of obesity.
title_short	Altered feeding patterns in rats exposed to a palatable cafeteria diet: increased snacking and its implications for development of obesity.
title_full	Altered feeding patterns in rats exposed to a palatable cafeteria diet: increased snacking and its implications for development of obesity.
title_fullStr	Altered feeding patterns in rats exposed to a palatable cafeteria diet: increased snacking and its implications for development of obesity.
title_full_unstemmed	Altered feeding patterns in rats exposed to a palatable cafeteria diet: increased snacking and its implications for development of obesity.
title_sort	altered feeding patterns in rats exposed to a palatable cafeteria diet: increased snacking and its implications for development of obesity.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/4e77fadf12a4460a96d52b55b814e0f5
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Altered feeding patterns in rats exposed to a palatable cafeteria diet: increased snacking and its implications for development of obesity.

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