Study2019

Differential Effects of Alternate-Day Fasting Versus Daily Calorie Restriction on Insulin Resistance

Gabel K, Kroeger CM, Trepanowski JF, Hoddy KK, Cienfuegos S, Kalam F, Varady KA

Obesity (Silver Spring, Md.) · 111 citations

How it was studied

Design
Randomized controlled trial (classified by our AI screen)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Independent funding
University or hospital
University of Illinois at Chicago
Government
National Heart, Lung, and Blood Institute
Government
NHLBI NIH HHS
Grants
National Heart, Lung, and Blood Institute (R01 HL106228)

Based on 3 listed funder(s).

Publication

Published
2019-07-22 · Obesity (Silver Spring) · vol. 27 · issue 9 · pp. 1443–1450
Publisher
Wiley
Cited
150 citations · more than 99% of similar papers · 9.5× the field average
Impact
Top 10% most cited in its field
References
34 works
Access
Open access (repository copy)
Research areas
Dietary Effects on Health · Genetics, Aging, and Longevity in Model Organisms · Diet and metabolism studies
Keywords
Calorie restriction, Insulin resistance, Medicine, Calorie, Intermittent fasting, Low calorie diet, Internal medicine, Differential effects, Endocrinology, Insulin, Weight loss, Obesity
MeSH
humans, insulin resistance, insulin, caloric restriction, fasting, adolescent, adult, aged, middle aged, female, male, young adult

7 authors

From US, AU

  • Kelsey GabelUniversity of Illinois Chicago
  • Cynthia M. KroegerThe University of Sydney; Charles Sturt University; University of Illinois Chicago
  • John F. TrepanowskiUniversity of Illinois Chicago
  • Kristin K. HoddyUniversity of Illinois Chicago
  • Sofia CienfuegosUniversity of Illinois Chicago
  • Faiza KalamUniversity of Illinois Chicago

Abstract

Objective

This study compared the effects of alternate-day fasting (ADF) with those of daily calorie restriction (CR) on body weight and glucoregulatory factors in adults with overweight or obesity and insulin resistance.

Methods

This secondary analysis examined the data of insulin-resistant individuals (n = 43) who participated in a 12-month study that compared ADF (25% energy needs on "fast days"; 125% energy needs on alternating "feast days") with CR (75% energy needs every day) and a control group regimen.

Results

In insulin-resistant participants, weight loss was not different between ADF (-8% ± 2%) and CR (-6% ± 1%) by month 12, relative to controls (P < 0.0001). Fat mass and BMI decreased (P < 0.05) similarly from ADF and CR. ADF produced greater decreases (P < 0.05) in fasting insulin (-52% ± 9%) and insulin resistance (-53% ± 9%) compared with CR (-14% ± 9%; -17% ± 11%) and the control regimen by month 12. Lean mass, visceral fat mass, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglycerides, blood pressure, C-reactive protein, tumor necrosis factor α, and interleukin 6 values remained unchanged.

Conclusions

These findings suggest that ADF may produce greater reductions in fasting insulin and insulin resistance compared with CR in insulin-resistant participants despite similar decreases in body weight.

Abstract via Europe PMC. Copyright remains with the authors or publisher.

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