Alternate day fasting on subjective feelings of appetite and body weight for adults with overweight or obesity: a systematic review

Alternate day fasting (ADF) with consumption of calories up to 25 % of the daily energy intake on fast days is one of the most used intermittent fasting regimens and promoted as a promising, alternative approach for treating obesity. Feelings of appetite are critical for adherence to dietary approac...

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Main Authors: Bahar Kucuk, Rigmor C. Berg
Format: Article
Language:English
Published: Cambridge University Press 2022-01-01
Series:Journal of Nutritional Science
Subjects:
Online Access:https://www.cambridge.org/core/product/identifier/S2048679022000908/type/journal_article
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author Bahar Kucuk
Rigmor C. Berg
author_facet Bahar Kucuk
Rigmor C. Berg
author_sort Bahar Kucuk
collection DOAJ
description Alternate day fasting (ADF) with consumption of calories up to 25 % of the daily energy intake on fast days is one of the most used intermittent fasting regimens and promoted as a promising, alternative approach for treating obesity. Feelings of appetite are critical for adherence to dietary approaches, and therefore the success of dietary interventions. This systematic review aimed to assess the effects of a minimum of 8 weeks of ADF on subjective feelings of appetite and body weight for adults with overweight and obesity. We conducted the review in accordance with the Cochrane guidelines, including systematic searches in four databases. Because of the high level of clinical and methodological heterogeneity, a narrative approach was used to synthesise the results. Eight studies with a total of 456 participants met the eligibility criteria: three randomised controlled trials and five uncontrolled before-after studies. Seven of the studies had high risk of bias. Feelings of appetite were assessed by hunger in eight studies, fullness in seven studies, satisfaction in four studies and desire to eat in one study. All the studies assessed weight loss. The certainty of the evidence was rated low or very low for all outcomes, thus no firm conclusions can be drawn about the potential benefits of ADF on subjective feelings of appetite and body weight. Despite the high interest in ADF, good quality evidence is still needed to determine its effectiveness and if offered in clinical practice, ADF should be offered cautiously while concomitantly evaluated.
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spelling doaj.art-70d1578f085a4e48b8b5ffb95967bc772023-03-09T12:38:46ZengCambridge University PressJournal of Nutritional Science2048-67902022-01-011110.1017/jns.2022.90Alternate day fasting on subjective feelings of appetite and body weight for adults with overweight or obesity: a systematic reviewBahar Kucuk0Rigmor C. Berg1Department of Community Medicine, The Arctic University of Norway, Tromsø, NorwayDepartment of Community Medicine, The Arctic University of Norway, Tromsø, Norway Department of Reviews and Health Technology Assessments, The Norwegian Institute of Public Health, Oslo, NorwayAlternate day fasting (ADF) with consumption of calories up to 25 % of the daily energy intake on fast days is one of the most used intermittent fasting regimens and promoted as a promising, alternative approach for treating obesity. Feelings of appetite are critical for adherence to dietary approaches, and therefore the success of dietary interventions. This systematic review aimed to assess the effects of a minimum of 8 weeks of ADF on subjective feelings of appetite and body weight for adults with overweight and obesity. We conducted the review in accordance with the Cochrane guidelines, including systematic searches in four databases. Because of the high level of clinical and methodological heterogeneity, a narrative approach was used to synthesise the results. Eight studies with a total of 456 participants met the eligibility criteria: three randomised controlled trials and five uncontrolled before-after studies. Seven of the studies had high risk of bias. Feelings of appetite were assessed by hunger in eight studies, fullness in seven studies, satisfaction in four studies and desire to eat in one study. All the studies assessed weight loss. The certainty of the evidence was rated low or very low for all outcomes, thus no firm conclusions can be drawn about the potential benefits of ADF on subjective feelings of appetite and body weight. Despite the high interest in ADF, good quality evidence is still needed to determine its effectiveness and if offered in clinical practice, ADF should be offered cautiously while concomitantly evaluated.https://www.cambridge.org/core/product/identifier/S2048679022000908/type/journal_articleAlternate day fastingAppetiteBody weightFullnessHungerWeight loss
spellingShingle Bahar Kucuk
Rigmor C. Berg
Alternate day fasting on subjective feelings of appetite and body weight for adults with overweight or obesity: a systematic review
Journal of Nutritional Science
Alternate day fasting
Appetite
Body weight
Fullness
Hunger
Weight loss
title Alternate day fasting on subjective feelings of appetite and body weight for adults with overweight or obesity: a systematic review
title_full Alternate day fasting on subjective feelings of appetite and body weight for adults with overweight or obesity: a systematic review
title_fullStr Alternate day fasting on subjective feelings of appetite and body weight for adults with overweight or obesity: a systematic review
title_full_unstemmed Alternate day fasting on subjective feelings of appetite and body weight for adults with overweight or obesity: a systematic review
title_short Alternate day fasting on subjective feelings of appetite and body weight for adults with overweight or obesity: a systematic review
title_sort alternate day fasting on subjective feelings of appetite and body weight for adults with overweight or obesity a systematic review
topic Alternate day fasting
Appetite
Body weight
Fullness
Hunger
Weight loss
url https://www.cambridge.org/core/product/identifier/S2048679022000908/type/journal_article
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