• Skip to content (access key 1)
  • Skip to search (access key 7)
FWF — Austrian Science Fund
  • Go to overview page Discover

    • Research Radar
    • Discoveries
      • Emmanuelle Charpentier
      • Adrian Constantin
      • Monika Henzinger
      • Ferenc Krausz
      • Wolfgang Lutz
      • Walter Pohl
      • Christa Schleper
      • Anton Zeilinger
    • scilog Magazine
    • Awards
      • FWF Wittgenstein Awards
      • FWF START Awards
    • excellent=austria
      • Clusters of Excellence
      • Emerging Fields
    • In the Spotlight
      • 40 Years of Erwin Schrödinger Fellowships
      • Quantum Austria
    • Dialogs and Talks
      • think.beyond Summit
    • E-Book Library
  • Go to overview page Funding

    • Portfolio
      • excellent=austria
        • Clusters of Excellence
        • Emerging Fields
      • Projects
        • Principal Investigator Projects
        • Principal Investigator Projects International
        • Clinical Research
        • 1000 Ideas
        • Arts-Based Research
        • FWF Wittgenstein Award
      • Careers
        • ESPRIT
        • FWF ASTRA Awards
        • Erwin Schrödinger
        • Elise Richter
        • Elise Richter PEEK
        • doc.funds
        • doc.funds.connect
      • Collaborations
        • Specialized Research Groups
        • Special Research Areas
        • Research Groups
        • International – Multilateral Initiatives
        • #ConnectingMinds
      • Communication
        • Top Citizen Science
        • Science Communication
        • Book Publications
        • Digital Publications
        • Open-Access Block Grant
      • Subject-Specific Funding
        • AI Mission Austria
        • Belmont Forum
        • ERA-NET HERA
        • ERA-NET NORFACE
        • ERA-NET QuantERA
        • ERA-NET TRANSCAN
        • Alternative Methods to Animal Testing
        • European Partnership Biodiversa+
        • European Partnership ERA4Health
        • European Partnership ERDERA
        • European Partnership EUPAHW
        • European Partnership FutureFoodS
        • European Partnership OHAMR
        • European Partnership PerMed
        • European Partnership Water4All
        • Gottfried and Vera Weiss Award
        • netidee SCIENCE
        • Herzfelder Foundation Projects
        • Quantum Austria
        • Rückenwind Funding Bonus
        • Zero Emissions Award
      • International Collaborations
        • Belgium/Flanders
        • Germany
        • France
        • Italy/South Tyrol
        • Japan
        • Luxembourg
        • Poland
        • Switzerland
        • Slovenia
        • Taiwan
        • Tyrol–South Tyrol–Trentino
        • Czech Republic
        • Hungary
    • Step by Step
      • Find Funding
      • Submitting Your Application
      • International Peer Review
      • Funding Decisions
      • Carrying out Your Project
      • Closing Your Project
      • Further Information
        • Integrity and Ethics
        • Inclusion
        • Applying from Abroad
        • Personnel Costs
        • PROFI
        • Final Project Reports
        • Final Project Report Survey
    • FAQ
      • Project Phase PROFI
        • Accounting for Approved Funds
        • Labor and Social Law
        • Project Management
      • Project Phase Ad Personam
        • Accounting for Approved Funds
        • Labor and Social Law
        • Project Management
      • Expiring Programs
        • FWF START Awards
  • Go to overview page About Us

    • Mission Statement
    • FWF Video
    • Values
    • Facts and Figures
    • Annual Report
    • What We Do
      • Research Funding
        • Matching Funds Initiative
      • International Collaborations
      • Studies and Publications
      • Equal Opportunities and Diversity
        • Objectives and Principles
        • Measures
        • Creating Awareness of Bias in the Review Process
        • Terms and Definitions
        • Your Career in Cutting-Edge Research
      • Open Science
        • Open Access Policy
          • Open Access Policy for Peer-Reviewed Publications
          • Open Access Policy for Peer-Reviewed Book Publications
          • Open Access Policy for Research Data
        • Research Data Management
        • Citizen Science
        • Open Science Infrastructures
        • Open Science Funding
      • Evaluations and Quality Assurance
      • Academic Integrity
      • Science Communication
      • Philanthropy
      • Sustainability
    • History
    • Legal Basis
    • Organization
      • Executive Bodies
        • Executive Board
        • Supervisory Board
        • Assembly of Delegates
        • Scientific Board
        • Juries
      • FWF Office
    • Jobs at FWF
  • Go to overview page News

    • News
    • Press
      • Logos
    • Calendar
      • Post an Event
      • FWF Informational Events
    • Job Openings
      • Enter Job Opening
    • Newsletter
  • Discovering
    what
    matters.

    FWF-Newsletter Press-Newsletter Calendar-Newsletter Job-Newsletter scilog-Newsletter

    SOCIAL MEDIA

    • LinkedIn, external URL, opens in a new window
    • Twitter, external URL, opens in a new window
    • Facebook, external URL, opens in a new window
    • Instagram, external URL, opens in a new window
    • YouTube, external URL, opens in a new window

    SCILOG

    • Scilog — The science magazine of the Austrian Science Fund (FWF)
  • elane login, external URL, opens in a new window
  • Scilog external URL, opens in a new window
  • de Wechsle zu Deutsch

  

Intermittent fasting in insulin-treated type 2 diabetes

Intermittent fasting in insulin-treated type 2 diabetes

Harald Sourij (ORCID: 0000-0003-3510-9594)
  • Grant DOI 10.55776/KLI851
  • Funding program Clinical Research
  • Status ended
  • Start September 1, 2020
  • End August 31, 2023
  • Funding amount € 334,789
  • Project website
  • E-mail

Disciplines

Health Sciences (20%); Clinical Medicine (80%)

Keywords

    Type 2 Diabetes, Intermittent Fasting, Dietary Intervention, Insulin Treatment

Abstract Final report

Besides the genetic background, increasing age, overweight and obesity or the lack of physical activity are the main risk factors in the pathogenesis of type 2 diabetes. On the long-term, uncontrolled blood glucose together with high blood pressure and increase blood lipids lead to in increased risk for myocardial infarction, stroke, amputations or eye, nerve, and kidney damage. Intervention trials have demonstrated, that a change in life-style can lead to a reduction in body weight, the prevention of diabetes and in improvement in blood sugar levels in people already having diabetes. There are a number of different dietary interventions, for all of which the thoroughly performed clinical study background is scarce. One very popular diet is intermittend fasting, where people fast one day and eat on the other day. However, the effect of such a diet and more importantly the safety in people with established type 2 diabetes already injecting insulin is yet unknown. In our study we will allocate people with type 2 diabetes treated with high doses of insulin to either the intermittend fasting group or the control group for 3 months. We will investigate the impact on body weight, body composition, blood glucose, insulin dose, well- being, blood pressure and the risk for hypoglylcaemia (low blood sugar levels).

Intermittierendes Fasten als diätetische Intervention mit vordefinierten Fastenzeiten hat in den letzten Jahren bei Menschen, die abnehmen möchten, zunehmend an Popularität gewonnen. Für manche Menschen ist es im Vergleich einfacher, eine vorab festgelegte Fastenzeit einzuhalten, die von einer Phase uneingeschränkten Essens unterbrochen wird, als eine kontinuierliche Kalorienreduzierung anzustreben. Übergewichtigen Menschen mit Typ -2- Diabetes wird empfohlen, ihr Körpergewicht zu reduzieren. Diese Aufgabe stellt jedoch für viele dieser Personen eine Herausforderung dar. Insbesondere bei jenen Menschen, die bereits Insulin injizieren, ist unklar, ob Fastenmaßnahmen unbedenklich sind oder ob diese einem erhöhten Risiko für niedrige Glukosewerte (Hypoglykämie) ausgesetzt sind. Ziel dieser Studie war es, die Auswirkungen einer 12-wöchigen, intermittierenden Fastenintervention (IF) im Vergleich zur Routinebetreuung bei Menschen mit Insulin behandeltem Typ -2-Diabetes mellitus zu untersuchen. Der intermittierenden Fastengruppe zugeordneten Personen wurden gebeten, an drei Tagen der Woche (Montag, Mittwoch, Freitag) bis zur Mittagszeit maximal 500 kcal zu sich zu nehmen. Darauf folgte die Fastenperiode bis zum nächsten Morgen, wobei der Konsum von ungesüßten Getränken in diesem Zeitraum erlaubt war. An den übrigen Wochentagen konnten diese Personen uneingeschränkt Nahrung und Getränke zuführen. Die Menschen in der Kontrollgruppe behielten ihren gewohnten Lebensstil über die Studiendauer von 12 Wochen bei. 46 Personen mit einem mittleren Body-Mass-Index von 34,3 4,5 kg/m2 und einem mittleren HbA1c (durchschnittlicher Zuckergehalt im Blut) von 67 11 mmol/mol wurden per Zufallsprinzip entweder der Fasten- oder der Kontrollgruppe zugeteilt. Alle teilnehmenden Personen erhielten eine Ernährungsberatung sowie eine sensorbasiertes Glukose-Messsystem. Innerhalb des 12wöchigen Studienzeitraumes verringerte sich der HbA1c in der Fastengruppe (-7,3 12,0 mmol/mol) im Vergleich zur Kontrollgruppe (0,1 6,1 mmol/mol) signifikant (p=0,012), ebenso wie das Körpergewicht ( -4,77 . 4,99 kg in der Fastengruppe im Vergleich zu +0,27 1,34 kg in der Kontrollgruppe (p<0,001)). 40 % der Personen der Fastengruppe konnten ihr Körpergewicht um mindestens 2 %, ihre Insulindosis um mindestens 10 % reduzieren und den HbA1c um mindestens 3 mmol/mol senken, während es keiner Person aus der Kontrollgruppe gelang, alle dieser 3 Parameter zu verbessern. Es trat keine schwere Unterzuckerung während der Studie auf. Anhand dieser Studie kann belegt werden, dass intermittierendes Fasten eine sichere und praktikable Ernährungsoption ist, um die Blutzuckerkontrolle zu verbessern und gleichzeitig die tägliche Gesamtinsulindosis und das Körpergewicht bei mit Insulin behandelten Menschen mit Typ-2-Diabetes zu reduzieren.

Research institution(s)
  • Medizinische Universität Graz - 100%

Research Output

  • 70 Citations
  • 6 Publications
  • 1 Policies
  • 4 Disseminations
Publications
  • 2025
    Title Sustained weight reduction following 12 weeks of intermittent fasting intervention in people with insulin-treated type 2 diabetes—Two-year follow-up of the randomised controlled InterFast-2 trial
    DOI 10.1111/dom.16158
    Type Journal Article
    Author Azhar K
    Journal Diabetes, Obesity and Metabolism
    Pages 1605-1608
    Link Publication
  • 2022
    Title Efficacy and Safety of Intermittent Fasting in People With Insulin-Treated Type 2 Diabetes (INTERFAST-2)—A Randomized Controlled Trial
    DOI 10.2337/dc22-1622
    Type Journal Article
    Author Obermayer A
    Journal Diabetes Care
    Pages 463-468
    Link Publication
  • 2024
    Title Effects of dietary interventions and intermittent fasting on HDL function in obese individuals with T2DM: a randomized controlled trial
    DOI 10.1186/s12933-024-02426-5
    Type Journal Article
    Author Pammer A
    Journal Cardiovascular Diabetology
    Pages 339
    Link Publication
  • 2023
    Title Glucose Metabolism and Metabolomic Changes in Response to Prolonged Fasting in Individuals with Obesity, Type 2 Diabetes and Non-Obese People—A Cohort Trial
    DOI 10.3390/nu15030511
    Type Journal Article
    Author Tripolt N
    Journal Nutrients
    Pages 511
    Link Publication
  • 2022
    Title Efficacy and safety of intermittent fasting in people with insulin-treated type 2 diabetes (INTERFAST-2) - a randomized controlled trial
    DOI 10.2337/figshare.21563463.v1
    Type Other
    Author Sourij H
  • 2022
    Title INTERmittent FASTing in people with insulin-treated type 2 diabetes mellitus – the INTERFAST-2 study protocol
    DOI 10.1111/dme.14813
    Type Journal Article
    Author Obermayer A
    Journal Diabetic Medicine
    Link Publication
Policies
  • 2023
    Title Participation in the National Nutritional Committee (NEK)
    Type Participation in a guidance/advisory committee
Disseminations
  • 0
    Title Interview on intermittent fasting
    Type A press release, press conference or response to a media enquiry/interview
  • 0
    Title Participant information event
    Type Participation in an activity, workshop or similar
  • 0
    Title Presentation at the Austrian Diabetes Association Meeting
    Type A talk or presentation
  • 0
    Title Scientific talk at the Austrian dietician meeting
    Type A talk or presentation

Discovering
what
matters.

Newsletter

FWF-Newsletter Press-Newsletter Calendar-Newsletter Job-Newsletter scilog-Newsletter

Contact

Austrian Science Fund (FWF)
Georg-Coch-Platz 2
(Entrance Wiesingerstraße 4)
1010 Vienna

office(at)fwf.ac.at
+43 1 505 67 40

General information

  • Job Openings
  • Jobs at FWF
  • Press
  • Philanthropy
  • scilog
  • FWF Office
  • Social Media Directory
  • LinkedIn, external URL, opens in a new window
  • Twitter, external URL, opens in a new window
  • Facebook, external URL, opens in a new window
  • Instagram, external URL, opens in a new window
  • YouTube, external URL, opens in a new window
  • Cookies
  • Whistleblowing/Complaints Management
  • Accessibility Statement
  • Data Protection
  • Acknowledgements
  • Social Media Directory
  • © Österreichischer Wissenschaftsfonds FWF
© Österreichischer Wissenschaftsfonds FWF