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Varannandagsfasta: en effektiv strategi för bättre hälsa?: En litteraturstudie om varannandagsfastans effekt på kroppsvikt samt kardiovaskulära riskfaktorer
Linnaeus University, Faculty of Health and Life Sciences, Department of Chemistry and Biomedical Sciences.
2020 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [sv]

Bakgrund: Fetma och övervikt är ett av de största hälsoproblemen runt om i världen. Vid fetma och övervikt ökar risken för olika sjukdomar, bland annat kranskärlssjukdomar. Kardiovaskulära sjukdomar var den främsta dödsorsaken världen över år 2016. En viktnedgång på 5 – 10 % av kroppsvikten, genom dietära restriktioner, kan minska risken för kranskärlssjukdomar. Varannandagsfasta är en metod som begränsar en individs energiintag med 70–100% varannan dag och varannan dag konsumerar individen vad den behagar. 

Syfte: Syftet med den här litteraturstudien är att sammanställa vilken effekt varannandagsfasta har på kroppsvikt samt olika kardiovaskulära riskfaktorer. 

Metod: En systematisk litteraturstudie utfördes där artiklar söktes efter i databasen PubMed med sökordet ”alternate day fasting”. 

Resultat: Totalt tio studier inkluderades i litteraturstudien. Samtliga studier gav en signifikant viktnedgång. Triglycerid- och LDL-halten sjönk signifikant i sex utav tio studier. HDL-halterna ökade inte i samband med varannandagsfasta. Totalkolesterolet sjönk signifikant i fem studier. Det systoliska blodtrycket sjönk signifikant i fem utav nio grupper och det diastoliska blodtrycket sjönk i tre grupper. 

Slutsats: Varannandagsfasta kan vara en effektiv strategi för bättre hälsa, då varannandagsfasta kan ge viktnedgång och minska riskfaktorer som LDL, triglycerider och totalkolesterol samt att varannandagsfasta möjligen även kan sänka blodtrycket. Mer forskning behövs med längre studietid och större studiepopulationer för att fastställa sambandet mellan varannandagsfasta och kardiovaskulära riskfaktorer. 

Abstract [en]

Background: Obesity and overweight is one of the world’s largest health problems. Obesity and overweight increase the risk of developing different diseases, such as coronary heart diseases. Cardiovascular diseases were the leading cause of death globally in 2016. A moderate weight loss of 5–10% by means of dietary restrictions, has been shown to lower the risk of coronary heart disease. Alternate day fasting is a dietary strategy that restricts the energy intake by 70–100% every other day and every other day the individual is permitted to consume food ad libitum.

Aim: The aim of this study is to compile the effects of alternate day fasting on weight loss and cardiovascular risk factors.

Method: A systematic literature study was conducted. The literature search was performed in the database PubMed using the term ”alternate day fasting”.

Result: In total there were ten studies included in this literature study. A significant weight loss was achieved in all studies. The concentration of triglycerides and LDL-cholesterol decreased significantly in six out of ten studies. Alternate day fasting did not increase HDL-cholesterol. The total cholesterol significantly decreased in five studies. The systolic blood pressure decreased significantly in five out of nine groups and the diastolic blood pressure decreased in three groups. 

Conclusion: The findings indicate that alternate day fasting may be an effective strategy to improve health by reducing body weight, LDL-cholesterol, total cholesterol and triglycerides and might possibly lower the blood pressure. Future research with longer study duration and larger sample size is needed to determine the relationship between alternate day fasting and cardiovascular risk factors.

Place, publisher, year, edition, pages
2020. , p. 22
Keywords [sv]
Varannandagsfasta, viktnedgång, kranskärlssjukdom, LDL, HDL, triglycerider, blodtryck
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:lnu:diva-97950OAI: oai:DiVA.org:lnu-97950DiVA, id: diva2:1464374
Subject / course
Biomedical Sciences
Educational program
Health Science Programme with Specialisation in Bio Sciences, 180 credits
Supervisors
Examiners
Available from: 2020-09-07 Created: 2020-09-05 Last updated: 2020-09-07Bibliographically approved

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