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Intermittant energy restriction

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https://www.readbyqxmd.com/read/30514879/effects-of-intermittent-versus-continuous-energy-restriction-for-weight-loss-on-diet-quality-and-eating-behavior-a-randomized-trial
#1
T M Sundfør, S Tonstad, M Svendsen
BACKGROUND/OBJECTIVES: Weight loss diets affect food choices and control of eating. We evaluated the effects of intermittent energy restriction (IER) vs. continuous energy restriction (CER) on nutritional composition and eating behavior. SUBJECT/METHODS: Individuals with BMI 30-45 kg/m2 , abdominal obesity and ≥1 additional metabolic syndrome component were randomized to IER vs. CER with similar energy restriction. Of 112 participants, 98 completed weighed dietary records and the Three Factor Eating Questionnaire at baseline and three months...
December 4, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/30511512/rationale-for-novel-intermittent-dieting-strategies-to-attenuate-adaptive-responses-to-energy-restriction
#2
REVIEW
A Sainsbury, R E Wood, R V Seimon, A P Hills, N A King, A A Gibson, N M Byrne
Eating patterns involving intermittent energy restriction (IER) include 'intermittent fasting' where energy intake is severely restricted for several 'fasting' days per week, with 'refeeding' days (involving greater energy intake than during fasting days) at other times. Intermittent fasting does not improve weight loss compared to continuous energy restriction (CER), where energy intake is restricted every day. We hypothesize that weight loss from IER could be improved if refeeding phases involved restoration of energy balance (i...
December 2018: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/30476012/intermittent-fasting-improves-glucose-tolerance-and-promotes-adipose-tissue-remodeling-in-male-mice-fed-a-high-fat-diet
#3
Bo Liu, Amanda J Page, George Hatzinikolas, Miaoxin Chen, Gary A Wittert, Leonie K Heilbronn
Obesity is associated with increased macrophage and extracellular matrix accumulation in adipose tissue, which can be partially reversed following weight loss by daily caloric restriction. This study examined the effects of 8 weeks of intermittent fasting (IF, 24-hours fast on 3 non-consecutive days per week) in mice fed a chow or high-fat diet (HFD, 43% fat), on markers of adipose tissue inflammation and fibrosis. We found that IF decreased energy intake, body weight and fat cell size in HFD fed mice, and decreased fat mass and improved glucose tolerance in chow and HFD fed mice...
November 21, 2018: Endocrinology
https://www.readbyqxmd.com/read/30475957/effects-of-intermittent-and-continuous-calorie-restriction-on-body-weight-and-metabolism-over-50-wk-a-randomized-controlled-trial
#4
Ruth Schübel, Johanna Nattenmüller, Disorn Sookthai, Tobias Nonnenmacher, Mirja E Graf, Lena Riedl, Christopher L Schlett, Oyunbileg von Stackelberg, Theron Johnson, Diana Nabers, Romy Kirsten, Mario Kratz, Hans-Ulrich Kauczor, Cornelia M Ulrich, Rudolf Kaaks, Tilman Kühn
Background: Although preliminary evidence suggests that intermittent calorie restriction (ICR) exerts stronger effects on metabolic parameters, which may link obesity and major chronic diseases, compared with continuous calorie restriction (CCR), there is a lack of well-powered intervention studies. Objective: We conducted a randomized controlled trial to test whether ICR, operationalized as the "5:2 diet," has stronger effects on adipose tissue gene expression, anthropometric and body composition measures, and circulating metabolic biomarkers than CCR and a control regimen...
November 1, 2018: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/30470804/effect-of-intermittent-compared-to-continuous-energy-restriction-on-weight-loss-and-weight-maintenance-after-12-months-in-healthy-overweight-or-obese-adults
#5
Michelle Louise Headland, Peter Marshall Clifton, Jennifer Beatrice Keogh
BACKGROUND AND OBJECTIVE: Intermittent energy restriction (IER) is an alternative to continuous energy restriction (CER) for weight loss. There are few long-term trials comparing efficacy of these methods. The objective was to compare the effects of CER to two forms of IER; a week-on-week-off energy restriction and a 5:2 program, during which participants restricted their energy intake severely for 2 days and ate as usual for 5 days, on weight loss, body composition, blood lipids, and glucose...
November 23, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/30401004/24-h-severe-energy-restriction-impairs-postprandial-glycaemic-control-in-young-lean-males
#6
David J Clayton, Jack Biddle, Tyler Maher, Mark P Funnell, Jack A Sargeant, James A King, Carl J Hulston, David J Stensel, Lewis J James
Intermittent energy restriction (IER) involves short periods of severe energy restriction interspersed with periods of adequate energy intake, and can induce weight loss. Insulin sensitivity is impaired by short-term, complete energy restriction, but the effects of IER are not well known. In randomised order, fourteen lean men (age: 25 (sd 4) years; BMI: 24 (sd 2) kg/m2; body fat: 17 (4) %) consumed 24-h diets providing 100 % (10 441 (sd 812) kJ; energy balance (EB)) or 25 % (2622 (sd 204) kJ; energy restriction (ER)) of estimated energy requirements, followed by an oral glucose tolerance test (OGTT; 75 g of glucose drink) after fasting overnight...
November 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/30364484/continuous-versus-intermittent-moderate-energy-restriction-for-increased-fat-mass-loss-and-fat-free-mass-retention-in-adult-athletes-protocol-for-a-randomised-controlled-trial-the-icecap-trial-intermittent-versus-continuous-energy-restriction-compared-in-an
#7
Jackson J Peos, Eric R Helms, Paul A Fournier, Amanda Sainsbury
Introduction: Reducing fat mass (FM) while retaining fat free mass (FFM) is a common goal of athletes. Evidence suggests that some-but not all-forms of intermittent energy restriction (IER) may be superior to the conventional method of continuous energy restriction (CER) for people with excess body fat that are sedentary, by reducing some of the adaptive responses to ER. However, it is yet to be established whether this dietary approach is effective for athletes. Methods and analysis: A single-blind, parallel group, randomised controlled trial with a 1:1 allocation ratio is proposed...
2018: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/30339785/breaking-the-fast-meal-patterns-and-beliefs-about-healthy-eating-style-are-associated-with-adherence-to-intermittent-fasting-diets
#8
Christina Potter, Rebecca L Griggs, Jeffrey M Brunstrom, Peter J Rogers
Many believe that eating three meals each day is healthy and that skipping meals can be detrimental. What remains unclear is whether this belief undermines attempts to restrict energy intake by skipping meals. In an online survey, participants (N = 312) with experience of intermittent fasting (IF) reported their beliefs about healthy meal and snack frequency, as well as their non-fasting-dasy and fasting-day eating patterns. They also reported their level of concern with fasting-day meal patterns and their concern to generate fullness when selecting foods...
October 17, 2018: Appetite
https://www.readbyqxmd.com/read/30323859/intermittent-fasting-for-microbes-how-discontinuous-feeding-increases-functional-stability-in-anaerobic-digestion
#9
Fabian Bonk, Denny Popp, Sören Weinrich, Heike Sträuber, Sabine Kleinsteuber, Hauke Harms, Florian Centler
Background: Demand-driven biogas production could play an important role for future sustainable energy supply. However, feeding a biogas reactor according to energy demand may lead to organic overloading and, thus, to process failures. To minimize this risk, digesters need to be actively steered towards containing more robust microbial communities. This study focuses on acetogenesis and methanogenesis as crucial process steps for avoiding acidification. We fed lab-scale anaerobic digesters with volatile fatty acids under various feeding regimes and disturbances...
2018: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/30063959/the-duration-of-intermittent-access-to-preferred-sucrose-rich-food-affects-binge-like-intake-fat-accumulation-and-fasting-glucose-in-male-rats
#10
A D Kreisler, M Mattock, E P Zorrilla
Many people restrict their palatable food intake. In animal models, time-limiting access to palatable foods increases their intake while decreasing intake of less preferred alternatives; negative emotional withdrawal-like behavior is sometimes reported. In drug addiction models, intermittent extended access drives greater changes in use than brief access. When it comes to palatable food, the impact of briefer vs. longer access durations within intermittent access conditions remains unclear. Here, we provided male rats with chow or with weekday access to a preferred, sucrose-rich diet (PREF) (2, 4, or 8 h daily) with chow otherwise available...
November 1, 2018: Appetite
https://www.readbyqxmd.com/read/30058508/energy-depletion-by-24-h-fast-leads-to-compensatory-appetite-responses-compared-with-matched-energy-depletion-by-exercise-in-healthy-young-males
#11
David Thivel, Graham Finlayson, Maud Miguet, Bruno Pereira, Martine Duclos, Yves Boirie, Eric Doucet, John E Blundell, Lore Metz
Although there is a growing interest for the effects of intermittent fasting on energy balance, this study aimed to compare appetite, energy intake and food reward responses with an energy depletion induced either by 24-h food restriction or an equivalent deficit with exercise in healthy males. In all, twelve healthy lean males (21·5 (sd 0·5) years old; BMI: 22·5 (sd 1·7) kg/m2) participated in this study. Body composition, aerobic capacity, food preferences and energy intake were assessed. They randomly completed three conditions: (i) no depletion (CON); (ii) full 24-h energy restrictions (Def-EI); and (iii) exercise condition (Def-EX)...
September 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/30046988/intermittent-fasting-alternate-day-fasting-in-healthy-non-obese-adults-protocol-for-a-cohort-trial-with-an-embedded-randomized-controlled-pilot-trial
#12
Norbert J Tripolt, Slaven Stekovic, Felix Aberer, Jasmin Url, Peter N Pferschy, Sabrina Schröder, Nicolas Verheyen, Albrecht Schmidt, Ewald Kolesnik, Sophie H Narath, Regina Riedl, Barbara Obermayer-Pietsch, Thomas R Pieber, Frank Madeo, Harald Sourij
BACKGROUND/OBJECTIVES: Alternate day fasting (ADF) is a subtype of intermittent fasting and is defined as a continuous sequence of a fast day (100% energy restriction, zero calories) and a feed day (ad libitum food consumption), resulting in roughly 36-h fasting periods. Previous studies demonstrated weight reductions and improvements of cardiovascular risk factors with ADF in obese subjects. However, rigorous data on potential endocrine, metabolic and cardiovascular effects, besides weight loss, are lacking...
August 2018: Advances in Therapy
https://www.readbyqxmd.com/read/30041495/impact-of-node-speed-on-energy-constrained-opportunistic-internet-of-things-with-wireless-power-transfer
#13
Seung-Woo Ko, Seong-Lyun Kim
Wireless power transfer (WPT) is a promising technology to realize the vision of Internet-of-Things (IoT) by powering energy-hungry IoT nodes by electromagnetic waves, overcoming the difficulty in battery recharging for massive numbers of nodes. Specifically, wireless charging stations (WCS) are deployed to transfer energy wirelessly to IoT nodes in the charging coverage. However, the coverage is restricted due to the limited hardware capability and safety issue, making mobile nodes have different battery charging patterns depending on their moving speeds...
July 23, 2018: Sensors
https://www.readbyqxmd.com/read/29958395/defining-the-optimal-dietary-approach-for-safe-effective-and-sustainable-weight-loss-in-overweight-and-obese-adults
#14
REVIEW
Chrysi Koliaki, Theodoros Spinos, Μarianna Spinou, Μaria-Eugenia Brinia, Dimitra Mitsopoulou, Nicholas Katsilambros
Various dietary approaches with different caloric content and macronutrient composition have been recommended to treat obesity in adults. Although their safety and efficacy profile has been assessed in numerous randomized clinical trials, reviews and meta-analyses, the characteristics of the optimal dietary weight loss strategy remain controversial. This mini-review will provide general principles and practical recommendations for the dietary management of obesity and will further explore the components of the optimal dietary intervention...
June 28, 2018: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/29926996/-for-me-it-s-about-not-feeling-like-i-m-on-a-diet-a-thematic-analysis-of-women-s-experiences-of-an-intermittent-energy-restricted-diet-to-reduce-breast-cancer-risk
#15
L S Donnelly, R L Shaw, M Pegington, C J Armitage, D G Evans, A Howell, M N Harvie
BACKGROUND: Weight-loss programmes requiring intermittent energy restriction offer an alternative to continuous energy restriction programmes that typically have low adherence. We reported greater weight loss, better adherence and spontaneous reduced energy intake on healthy eating days with intermittent as opposed to continuous energy restriction. The present study aims to explore why intermittent energy restriction diets exert these positive effects. METHODS: Semi-structured interviews were carried out with 13 women aged 39-62 years, who followed a 4-month intermittent energy restriction (2 days of low energy/low carbohydrate, 5 days of healthy eating)...
June 21, 2018: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/29876119/intermittent-energy-restriction-for-weight-loss-spontaneous-reduction-of-energy-intake-on-unrestricted-days
#16
Jennifer Harvey, Anthony Howell, Julie Morris, Michelle Harvie
There is increasing interest for the use of intermittent energy restriction (IER) in weight management. However, there are concerns that IER could result in 'rebound' overconsumption of energy on unrestricted days. We studied self-reported food records from participants in two trials of IER versus continuous energy restriction (Study 1; 44 women on IER for 6 months and Study 2; 72 women on two types of IER for 4 months). Energy intake was assessed on restricted and unrestricted days immediately before and after restricted days and on other unrestricted days...
May 2018: Food Science & Nutrition
https://www.readbyqxmd.com/read/29874567/intermittent-fasting-confers-protection-in-cns-autoimmunity-by-altering-the-gut-microbiota
#17
Francesca Cignarella, Claudia Cantoni, Laura Ghezzi, Amber Salter, Yair Dorsett, Lei Chen, Daniel Phillips, George M Weinstock, Luigi Fontana, Anne H Cross, Yanjiao Zhou, Laura Piccio
Multiple sclerosis (MS) is more common in western countries with diet being a potential contributing factor. Here we show that intermittent fasting (IF) ameliorated clinical course and pathology of the MS model, experimental autoimmune encephalomyelitis (EAE). IF led to increased gut bacteria richness, enrichment of the Lactobacillaceae, Bacteroidaceae, and Prevotellaceae families and enhanced antioxidative microbial metabolic pathways. IF altered T cells in the gut with a reduction of IL-17 producing T cells and an increase in regulatory T cells...
June 5, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29867034/effect-of-intermittent-energy-restriction-on-flow-mediated-dilatation-a-measure-of-endothelial-function-a-short-report
#18
Michelle L Headland, Peter M Clifton, Jennifer B Keogh
Intermittent energy restriction is a popular alternative to daily energy restriction for weight loss; however, it is unknown if endothelial function, a risk factor for cardiovascular disease, is altered by periods of severe energy restriction. The objective of the study was to determine the impact of two consecutive very low energy intake days, which is the core component of the 5:2 intermittent energy restriction diet strategy, on endothelial function compared to consecutive ad libitum eating days. The secondary objective was to explore the effects of these dietary conditions on fasting glucose concentrations...
June 4, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29842854/repeated-weight-cycling-in-obese-mice-causes-increased-appetite-and-glucose-intolerance
#19
Stephanie E Simonds, Jack T Pryor, Michael A Cowley
Obesity is an ongoing global public health problem. For many people dieting is the preferred method of combating elevated body fat. Weight lost during caloric restriction is often soon regained and so a pattern of recurrent dieting develops. Here an individual's food intake fluctuates up and down with intermittent periods of normal eating and restrained eating. The metabolic consequences of 'yoyo dieting' or 'weight cycling' are not well understood. Here we monitor the effects of multiple, repeated dieting periods on body composition and metabolic health in overweight mice...
October 1, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29778565/effect-of-intermittent-versus-continuous-energy-restriction-on-weight-loss-maintenance-and-cardiometabolic-risk-a-randomized-1-year-trial
#20
T M Sundfør, M Svendsen, S Tonstad
BACKGROUND & AIMS: Long-term adherence to conventional weight-loss diets is limited while intermittent fasting has risen in popularity. We compared the effects of intermittent versus continuous energy restriction on weight loss, maintenance and cardiometabolic risk factors in adults with abdominal obesity and ≥1 additional component of metabolic syndrome. METHODS & RESULTS: In total 112 participants (men [50%] and women [50%]) aged 21-70 years with BMI 30-45 kg/m2 (mean 35...
July 2018: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
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