Fasting

Has anyone tried or done intervel fasting at all? Is it safe to do? Have you had success at all? Is it worth it?

Replies

  • penguinmama87
    penguinmama87 Posts: 1,158 Member
    edited March 2021
    I have fasted as part of religious observance before, and not strictly as a weight loss strategy. That said, one of the reasons it's a part of religious observance is because it's a relatively pain-free way to develop discipline and strength of will, which are really important for successful weight loss too. I did notice, after time, that it was easier for me to say no to eating for boredom and taught me to recognize real hunger signals instead. I found I could suffer a little and it wouldn't kill me. In a society that can be all about instant gratification, that's a useful lesson for some of us.

    I did read a book about intermittent fasting from the library and thought it had some useful information about specific strategies and the history of fasting in various cultures. I don't remember the exact title, but if it comes to me I can post it.

    The people I know who have been successful with IF and weight loss have generally been men. Definitely don't recommend if you're pregnant, breastfeeding, or likely to become pregnant, especially the more intense versions.
  • CarolHemma7052
    CarolHemma7052 Posts: 5 Member
    Thank you very much for this helpful reply. I have heard it helps with allergies also that is part of my interest an weight loss part to be honest. I'm not sure if it is true about helping allergies or not.
  • psuLemon
    psuLemon Posts: 38,422 MFP Moderator
    Thank you very much for this helpful reply. I have heard it helps with allergies also that is part of my interest an weight loss part to be honest. I'm not sure if it is true about helping allergies or not.

    I have never seen that claim and don't even know how extending your fasting window would help allegies.

    Fasting can help with calorie restriction as long as you don't use your feed time to binge. It didn't accelerate fat loss pending calories and orient l protein are equal

    Ultimately it's about compliance. If it fits your lifestyle, go for it. My wife only eats 2x a day and it helps her control calories. But she also doesn't respond well to breakfast.
  • ALZ14
    ALZ14 Posts: 202 Member
    I tried it for awhile and the only thing it helped me with is discipline in avoiding late night snacking. Since I didn’t monitor my food intake I didn’t lose any weight because I wasn’t eating in a deficit in my eating window.
  • penguinmama87
    penguinmama87 Posts: 1,158 Member
    edited March 2021
    Thank you very much for this helpful reply. I have heard it helps with allergies also that is part of my interest an weight loss part to be honest. I'm not sure if it is true about helping allergies or not.

    You're very welcome!

    I've never heard that. I would be curious to know the reasoning. I could see, maybe, a point being made about inflammation or sensitivity (though that feels like a stretch), but an allergy is an allergy. The time you eat something won't stop your body from reacting to it. You could bring it up with your allergist and see.
  • lemurcat2
    lemurcat2 Posts: 7,885 Member
    There are a bunch of different kinds of intermittent fasting (some of which I think are better referred to as time-restricted eating, if a special name is needed). I've never heard that any are good for allergies, but it wouldn't hurt to try and see if you have some decent source for that information.

    The main types of IFing (or TRE) methods I've heard of are: (1) eating in a shorter time window per day (this is what I call TRE); (2) having 2 days of very low cals (usually something like 500) and 5 days at maintenance; and (3) fasting one day per week (or fasting for 24 hours one day per week) -- this is called intermittent eating by one of the proponents (Brad Pilon).

    I've done TRE (or eating in a shortened window) mainly because my current schedule makes skipping breakfast easier and I like eating earlier (not super early) when I'm not spending an hour on the way home from work (as currently) and I never snack anyway. Currently I usually eat in a 7 hour window, although it's okay if I occasionally do not. I find eating two big meals is an enjoyable way to divide up my cals and I have no issues skipping breakfast, have done it off and on all my life. Right now I like that it gives me extra time in the morning to skip it.

    All three of the types of IFing I mentioned would be safe for most people (if you have any medical issues, check with your doctor). I don't think IFing is any better for weight loss than any other way of eating (I lost a lot of weight back in 2014-15, and at the time I didn't IF, but ate 3 meals, no snacks, often spread out quite a bit -- 7, 12, and 9 was common). However, I also don't think it's any worse for weight loss -- it will just depend on your personal preference and whether you prefer eating more or less often and in a shorter period of time or not.

    The one thing I had to get used to with 2 meals is I've generally used breakfast as a way to get in about 25-30 g of protein, so I initially accidentally dropped my protein and had to consciously make sure to get as much as I wanted in only 2 meals.
  • CarolHemma7052
    CarolHemma7052 Posts: 5 Member
    Thank you everyone one for all the information. It's helpful to hear others people's outtakes on things. Helps me to get perspective on wither I should or not.
  • lgfrie
    lgfrie Posts: 1,449 Member
    I have been doing intermittent fasting for 21 months and have lost 90 pounds. It's been a total game changer for me. It was on my first day on IF and remains so all this time later. I eat between noon and 7:30 pm, with strict calorie counting. I probably eat outside my 7.5 hour eating window twice a month, like when I'm out with friends. I don't make a big deal about it when that happens, but I try to keep it rare. I like this way of eating and intend to stick with it forever. It just really works for me. I had terrible binging habits before I got on the IF bandwagon and this has solved them for me.

    Not aware of any safety issues. IF is a healthy way to eat. Your body does not require food in any particular 16 hour period; you'd have to fast much longer than that before questions of safety would even come into play. All of my markers of health, from blood pressure to blood sugar to heart rate have drastically improved, but whether any of that is attributable to IF or is just from losing weight, is hard to say.

    It is never a bad idea to chat with your doctor when you have questions about health and safety. If you are concerned, I recommend speaking with your doctor about it.

  • DanaDark
    DanaDark Posts: 2,187 Member
    IF is not much of a diet but rather a schedule of when you eat. You can easily gain weight while doing it.

    Honestly, it has been the only thing to really work for my weight loss goals due to how I naturally like to go about my life.

    2 days of under 500 calories (not consecutive days). 3 days of MFP recommended deficit. And finally, 2 days of being able to enjoy whatever I want generally.

    Doing the standard 7 day a week reduced calories just simply made me feel without all the time. So, switching it up to counting calories over the course of the week instead has really helped.

    Obviously, keep it reasonable, keep it something that doesn't create significant discomfort, don't go crazy.
  • concordancia
    concordancia Posts: 5,320 Member
    Thank you very much for this helpful reply. I have heard it helps with allergies also that is part of my interest an weight loss part to be honest. I'm not sure if it is true about helping allergies or not.

    For allergy symptoms, you may find an elimination diet helpful. The Myers Way and Whole 30 offer slight variations, but if you are going to try this, it is essential to commit to the whole cycle - generally 3-4 weeks of a very basic diet, then it could take another month or more to reintroduce foods slowly, in a way that let's you identify anything that triggers your symptoms. A slightly easier version is if you suspect a certain trigger, eliminate that from your diet for a month, then reintroduce it. I used to have a strong reaction to spinach (nearly instant diarrhea, hard to believe it could affect me so fast) and bananas (asthma attacks). I cut them from my diet, tried again, still reacted, and cut them for years. I can now have them occasionally with no ill effects, but probably won't even try to make them a part of my regular diet ever again.
  • heybales
    heybales Posts: 18,842 Member
    Interval fasting - is that like don't eat really intensely for a bit, then eat slowly for longer, then repeat? ;-)

    I've done Intermittent Fasting (or new term mentioned TRE) for years now as the eating schedule (it's not a diet) because I saw some research about improving insulin response for those perhaps going the wrong direction, and potential improvement on migraines if your trigger seemed to be carb related.
    And I was skeptical I could do it with my workouts and it would work.

    No migraines even during months of no exercise and prior triggers.

    Window most days due to schedule and errands and exercise ends up being 10 to midnight.
    And even with that window - it is possible to overeat to maintenance - hence it not being a diet, though it may make it easier to adhere to a diet when you can have a nice normal sized meal and treat.

    I could never find a good schedule for the 5:2 fasting protocol where the 2 days at 25% of TDEE weren't the day after or before an intense workout needing a good refeed for recovery to do the next one.
    And during some times of no workout - just wasn't motivated to test it though I probably could.