Intermittent fasting: Difference between revisions

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'''Intermittent fasting''' ('''IF''') is an umbrella term for various diets that cycle between a period of [[fasting]] and non-fasting during a defined period. Intermittent fasting can also be used along with calorie restriction for weight loss.<ref>{{cite journal|last1=Mager|first1=D. E.|title=Caloric restriction and intermittent fasting alter spectral measures of heart rate and blood pressure variability in rats|journal=The FASEB Journal|date=1 April 2006|volume=20|issue=6|pages=631–637|doi=10.1096/fj.05-5263com|pmid=16581971}}</ref>
 
== Variations ==
Most popular intermittent fasting protocols can be grouped into 2 categories: whole-day fasting and time-restricted feeding (TRF).
 
* ''Whole-day fasting'' involves regular one-day fasts. The strictest form would be ''Alternate day fasting'' (ADF). This involves a 24-hour fast followed by a 24-hour non-fasting period.<ref name="varady">{{cite journal|pmid=21410865|year=2011|author1=Varady|first1=K. A.|title=Intermittent versus daily calorie restriction: Which diet regimen is more effective for weight loss?|journal=Obesity Reviews|volume=12|issue=7|pages=e593–601|doi=10.1111/j.1467-789X.2011.00873.x|url=http://onlinelibrary.wiley.com/doi/10.1111/j.1467-789X.2011.00873.x/full}}</ref> The 5:2 diet allows the consumption of 500–600 calories on fasting days.<ref>{{cite web|url=https://www.bbcgoodfood.com/howto/guide/what-52-diet|title=What is the 5:2 diet?|date=1 June 2016|publisher=BBC GoodFood, Worldwide|author=Fisher, Roxanne}}</ref><ref name=whatuwant>{{cite news |author=Mosley, Michael |url=http://www.telegraph.co.uk/lifestyle/9480451/The-52-diet-can-it-help-you-lose-weight-and-live-longer.html#|title=The 5:2 diet: can it help you lose weight and live longer?|newspaper=''[[The Daily Telegraph|The Telegraph]]''|accessdate=11 September 2012|quote="With this regimen you eat what you want five days a week..."}}</ref><ref name=games>{{cite web|title=Hunger games: The new science of fasting|url=http://timesenterprise.com/news/x2056572230/Hunger-games-The-new-science-of-fasting|author=Emma Young, New Scientist|publisher=Thomasville Times Enterprise|date=2 January 2013|accessdate=3 January 2013|quote=...I am allowed to eat whatever I want on the five non-fast days.}}</ref><ref name=nhs-how-to-diet/>