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Metabolic response to daytime dry fasting in Bahá'í volunteers -- results of a preliminary study

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Item Type:Article
Title:Metabolic response to daytime dry fasting in Bahá'í volunteers -- results of a preliminary study
Creators Name:Mähler, A. and Jahn, C. and Klug, L. and Klatte, C. and Michalsen, A. and Koppold-Liebscher, D. and Boschmann, M.
Abstract:Each year in March, adherents of the Bahá'í faith abstain from eating and drinking from sunrise to sunset for 19 days. Thus, Bahá'í fasting (BF) can be considered as a form of daytime dry fasting. We investigated whether BF decreased energy expenditure after a meal and whether it improved anthropometric measures and systemic and tissue-level metabolic parameters. This was a self-controlled cohort study with 11 healthy men. We measured anthropometric parameters, metabolic markers in venous blood and pre- and postprandial energy metabolism at systemic (indirect calorimetry) and tissue (adipose tissue and skeletal muscle microdialysis) level, both before and during BF. During BF, we found reduced body weight, body mass index, body fat and blood glucose. Postprandial increase in energy expenditure was lower and diet-induced thermogenesis tended to be lower as well. In adipose tissue, perfusion, glucose supply and lipolysis were increased. In skeletal muscle, tissue perfusion did not change. Glucose supply and lipolysis were decreased. Glucose oxidation was increased, indicating improved insulin sensitivity. BF may be a promising approach to losing weight and improving metabolism and health. However, outside the context of religiously motivated fasting, skipping a meal in the evening (dinner cancelling) might be recommended, as metabolism appeared to be reduced in the evening.
Keywords:Religious Fasting, Daytime Dry Fasting, Energy Expenditure, Body Composition, Microdialysis
Page Range:148
Date:29 December 2021
Official Publication:https://doi.org/10.3390/nu14010148
PubMed:View item in PubMed

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