5:2 "fasting" and 16/8 fasting, which one is better?

CatMarlett
CatMarlett Posts: 27 Member
edited December 3 in Health and Weight Loss
5:2 "fasting" and 16/8 fasting, does anyone have evidence supporting which one is better? from either personal experience or articles (scientific ones).

Replies

  • extra_medium
    extra_medium Posts: 1,525 Member
    Intermittent fasting works because it helps create a caloric deficit over time, that's all the science. Whatever one works best for you is best.
  • TavistockToad
    TavistockToad Posts: 35,719 Member
    Intermittent fasting is an eating style, 5:2 is a diet... depends what you're after.
  • tashygolean730
    tashygolean730 Posts: 92 Member
    If you're looking to lose weight either work. Intermittent fasting is a lifestyle, but if you create a daily deficit you will lose weight. It depends on what you can adhere to best. 8 hour eating window with a 25% daily deficit off your TDEE or 5 days a week at TDEE and two days a week at 500 calories.
  • frankiesgirlie
    frankiesgirlie Posts: 669 Member
    Intermittent fasting helps me stay in a deficit easier. I mostly like it for my energy levels. Fasting during the day gives me high energy.
    But since my workouts are now consistently 6 days a week, and are somewhat intense I do better with 14/10.
    I don't feel IF in itself makes a person lose weight better or faster. It just makes it easier to create a deficit.Makes adherence easier. But that's my personal experience.
  • OliverFiles
    OliverFiles Posts: 22 Member
    From personal experience, 5:2 works for me when I can stick to it and even more so if I can fit it into 16:8 window as well. It's all about personal preference and what works for you, you could try both for a month or two each and see what you get the best results with.
  • sijomial
    sijomial Posts: 19,809 Member
    edited August 2016
    Intermittent fasting is an eating style, 5:2 is a diet... depends what you're after.
    Bit of a strange distinction. Care to expand?


    To answer the "which is better" then my answer is the one that suits you. Until you try you won't know.

    For me that was 5:2 to lose weight, remarkably easy to adhere to and supported a heavy exercise routine well.
    5:2 to maintain was a pain though, felt I was having to work at eating enough on the 5 days to offset the 2 days.
    6:1 to maintain was OK and gave a more natural feeling calorie allowance.

    Tried 16:8 but found that I felt over-restricted. I'm someone who can easily skip breakfast without feeling any more (or less) hungry by lunchtime but I just didn't like feeling I had to skip breakfast.
    I could lose weight (or maintain weight) doing 16:8 but just didn't enjoy it.

    There's very little impartial scientific evidence that isn't cherry-picked to death to support a particular fasting style so read with a cynical eyebrow raised!!

    Dr Krista Varady has done the most controlled study (IMHO) on her ADH style of eating but you can't (shouldn't anyway) extrapolate that to other fasting protocols.
  • TavistockToad
    TavistockToad Posts: 35,719 Member
    sijomial wrote: »
    Intermittent fasting is an eating style, 5:2 is a diet... depends what you're after.

    Bit of a strange distinction. Care to expand?


    To answer the "which is better" then my answer is the one that suits you. Until you try you won't know.

    For me that was 5:2 to lose weight, remarkably easy to adhere to and supported a heavy exercise routine well.
    5:2 to maintain was a pain though, felt I was having to work at eating enough on the 5 days to offset the 2 days.
    6:1 to maintain was OK and gave a more natural feeling calorie allowance.

    Tried 16:8 but found that I felt over-restricted. I'm someone who can easily skip breakfast without feeling any more (or less) hungry by lunchtime but I just didn't like feeling I had to skip breakfast.
    I could lose weight (or maintain weight) doing 16:8 but just didn't enjoy it.

    There's very little impartial scientific evidence that isn't cherry-picked to death to support a particular fasting style so read with a cynical eyebrow raised!!

    Dr Krista Varady has done the most controlled study (IMHO) on her ADH style of eating but you can't (shouldn't anyway) extrapolate that to other fasting protocols.

    IF doesn't create a deficit in of itself, its just a way of eating - in a particular time frame.

    5:2 is a way of creating a deficit by having 2 fast days.
  • AnvilHead
    AnvilHead Posts: 18,343 Member
    Intermittent fasting works because it helps create a caloric deficit over time, that's all the science. Whatever one works best for you is best.
    ^ This. There's nothing magic about IF. If it helps create a deficit and is something you can adhere to, it will work; if you overeat during the eating window or it causes you to binge, it won't work.

    sijomial wrote: »
    ...There's very little impartial scientific evidence that isn't cherry-picked to death to support a particular fasting style so read with a cynical eyebrow raised!!...
    ^ And this.


    I more or less kinda sorta do a 16:8 because it's just the way I normally eat and works best for me, but I'm not rigid about it. If I happen to be hungry outside that window, I eat. 5:2 would never work for me because there's no way I'm going two days of the week eating 500 calories a day. My adherence level would be zero and a diet you can't adhere to is a diet that won't work.
  • sijomial
    sijomial Posts: 19,809 Member
    sijomial wrote: »
    Intermittent fasting is an eating style, 5:2 is a diet... depends what you're after.

    Bit of a strange distinction. Care to expand?


    To answer the "which is better" then my answer is the one that suits you. Until you try you won't know.

    For me that was 5:2 to lose weight, remarkably easy to adhere to and supported a heavy exercise routine well.
    5:2 to maintain was a pain though, felt I was having to work at eating enough on the 5 days to offset the 2 days.
    6:1 to maintain was OK and gave a more natural feeling calorie allowance.

    Tried 16:8 but found that I felt over-restricted. I'm someone who can easily skip breakfast without feeling any more (or less) hungry by lunchtime but I just didn't like feeling I had to skip breakfast.
    I could lose weight (or maintain weight) doing 16:8 but just didn't enjoy it.

    There's very little impartial scientific evidence that isn't cherry-picked to death to support a particular fasting style so read with a cynical eyebrow raised!!

    Dr Krista Varady has done the most controlled study (IMHO) on her ADH style of eating but you can't (shouldn't anyway) extrapolate that to other fasting protocols.

    IF doesn't create a deficit in of itself, its just a way of eating - in a particular time frame.

    5:2 is a way of creating a deficit by having 2 fast days.

    Don't really agree. Different semantics I suppose.
    My diet is the foods I eat.
    My calories over a period of time determines my weight loss/maintenance/gain dependant on my goal at the time.
    How that is divided up over the day or week is an eating pattern, eating style or the slightly cringe-making "way of eating" to my mind.
  • caradack1985
    caradack1985 Posts: 254 Member
    What everyone else said, whichever you find works with your lifestyle, and there are many other fasting "diets" you can use. I use 23:1 personally, it fits my lifestyle. Of course it may be that fasting diets don't work for you at all, I which case neither!
  • AnvilHead
    AnvilHead Posts: 18,343 Member
    What everyone else said, whichever you find works with your lifestyle, and there are many other fasting "diets" you can use. I use 23:1 personally, it fits my lifestyle. Of course it may be that fasting diets don't work for you at all, I which case neither!

    23:1 sounds much more my style, except it would be inconvenient to have to wake up every hour during the night to eat! :D
  • TavistockToad
    TavistockToad Posts: 35,719 Member
    sijomial wrote: »
    sijomial wrote: »
    Intermittent fasting is an eating style, 5:2 is a diet... depends what you're after.

    Bit of a strange distinction. Care to expand?


    To answer the "which is better" then my answer is the one that suits you. Until you try you won't know.

    For me that was 5:2 to lose weight, remarkably easy to adhere to and supported a heavy exercise routine well.
    5:2 to maintain was a pain though, felt I was having to work at eating enough on the 5 days to offset the 2 days.
    6:1 to maintain was OK and gave a more natural feeling calorie allowance.

    Tried 16:8 but found that I felt over-restricted. I'm someone who can easily skip breakfast without feeling any more (or less) hungry by lunchtime but I just didn't like feeling I had to skip breakfast.
    I could lose weight (or maintain weight) doing 16:8 but just didn't enjoy it.

    There's very little impartial scientific evidence that isn't cherry-picked to death to support a particular fasting style so read with a cynical eyebrow raised!!

    Dr Krista Varady has done the most controlled study (IMHO) on her ADH style of eating but you can't (shouldn't anyway) extrapolate that to other fasting protocols.

    IF doesn't create a deficit in of itself, its just a way of eating - in a particular time frame.

    5:2 is a way of creating a deficit by having 2 fast days.

    Don't really agree. Different semantics I suppose.
    My diet is the foods I eat.
    My calories over a period of time determines my weight loss/maintenance/gain dependant on my goal at the time.
    How that is divided up over the day or week is an eating pattern, eating style or the slightly cringe-making "way of eating" to my mind.

    That's ok if you feel the need to disagree.
  • TavistockToad
    TavistockToad Posts: 35,719 Member
    AnvilHead wrote: »
    What everyone else said, whichever you find works with your lifestyle, and there are many other fasting "diets" you can use. I use 23:1 personally, it fits my lifestyle. Of course it may be that fasting diets don't work for you at all, I which case neither!

    23:1 sounds much more my style, except it would be inconvenient to have to wake up every hour during the night to eat! :D

    :laugh:
  • caradack1985
    caradack1985 Posts: 254 Member
    AnvilHead wrote: »
    What everyone else said, whichever you find works with your lifestyle, and there are many other fasting "diets" you can use. I use 23:1 personally, it fits my lifestyle. Of course it may be that fasting diets don't work for you at all, I which case neither!

    23:1 sounds much more my style, except it would be inconvenient to have to wake up every hour during the night to eat! :D

    It takes serious commitment ;)
  • rybo
    rybo Posts: 5,424 Member
    sijomial wrote: »
    Intermittent fasting is an eating style, 5:2 is a diet... depends what you're after.

    Bit of a strange distinction. Care to expand?


    To answer the "which is better" then my answer is the one that suits you. Until you try you won't know.

    For me that was 5:2 to lose weight, remarkably easy to adhere to and supported a heavy exercise routine well.
    5:2 to maintain was a pain though, felt I was having to work at eating enough on the 5 days to offset the 2 days.
    6:1 to maintain was OK and gave a more natural feeling calorie allowance.

    Tried 16:8 but found that I felt over-restricted. I'm someone who can easily skip breakfast without feeling any more (or less) hungry by lunchtime but I just didn't like feeling I had to skip breakfast.
    I could lose weight (or maintain weight) doing 16:8 but just didn't enjoy it.

    There's very little impartial scientific evidence that isn't cherry-picked to death to support a particular fasting style so read with a cynical eyebrow raised!!

    Dr Krista Varady has done the most controlled study (IMHO) on her ADH style of eating but you can't (shouldn't anyway) extrapolate that to other fasting protocols.

    IF doesn't create a deficit in of itself, its just a way of eating - in a particular time frame.

    5:2 is a way of creating a deficit by having 2 fast days.

    I absolutely agree with TavistockToad. I've been doing 16:8 for a couple years now. It's an extremely convenient way for me to eat. I've used it 98% of the time to maintain, 1% to lose(meet a weight class) and 1% to gain (get back to my normal weight) All without logging.

    I've also done 5:2 prior to that to lose weight. If you do more reading and research, 5:2 is all about being a diet to lose weight (and for most) without having to track other than the two 500 cal days. 6:1 is the maintenance version. I have a friend that over a few months lost 14 lbs on 5:2 and has maintained a very lean body on 6:1 for quite some time now.

    The 16:8 protocol can be used to gain, maintain or lose, all of which have nothing to do with the eating window part.
  • louann_jude
    louann_jude Posts: 307 Member
    I really like the 16:8. I am the type of person that has to have an empty stomach to exercise and clean. I just move better that way. So I get up and do my workout and then get my house work done. When my kids get home from preschool that starts my eating day. It helps me to have a bigger dinner that way. I can eat small for the first two but at dinner time I want volume.
  • lauradenslinger
    lauradenslinger Posts: 6 Member
    I love 16:8. Hate breakfast and love eating big meals. I do 16:8 and IIFYM.
  • skyeashlee
    skyeashlee Posts: 108 Member
    CatMarlett wrote: »
    5:2 "fasting" and 16/8 fasting, does anyone have evidence supporting which one is better? from either personal experience or articles (scientific ones).

    what a brilliant question to ask !!! I am wondering the same thing...now time to get reading the answers, thank you for starting this topic !!!! I have done 5:2 but not 16/8!!
    I def lost weight from 5:2 , however you can't undo everything on your non fasting days!
  • louann_jude
    louann_jude Posts: 307 Member
    I love 16:8. Hate breakfast and love eating big meals. I do 16:8 and IIFYM.

    That is what I am doing too. At least I am learning more daily on IIFYM.
This discussion has been closed.