Meet the Other Phone. Protection built in.

Meet the Other Phone.
Protection built in.

Buy now

Please or to access all these features

Fasting / 5:2 diet

Talk about intermittent fasting and 5:2, including what’s worked for others. Mumsnet hasn't checked the qualifications of anyone posting here. You may wish to speak to a medical professional before starting any diet.

5:2 Diet Thread! Number sweet 16!

999 replies

GreenEggsAndNichts · 22/03/2013 20:05

The continuing thread for those of us following either the 5:2 diet or the alternate-day fasting diet.

The 5:2 diet was featured on Horizon in August 2012, and essentially requires you to fast for 2 non-consecutive days per week. The other 5 days, you can eat what you like, or approximately your TDEE (see explanation below). Alternate-day fasting is just how it sounds; you fast every other day. By "fasting", we mean that we keep our calorie consumption very low, around 500 calories on average for a woman, 600 for a man, on those days.

You'll find on these threads we use a number of acronyms. If you're new to the threads, or Mumsnet in general, they might not make much sense.

WOE/WOL = Way Of Eating/Way Of Life. We use this term instead of "diet" as many of us see this as something to do in the long term.

MFP = My Fitness Pal, a website many use for keeping track of the number of calories they're eating.

TDEE = Total Daily Energy Expenditure, quantifies the number of calories you burn in a day. This measure is best estimated by scaling your Basal Metabolic Rate to your level of activity. TDEE is critical in tailoring your nutrition plan to desired fitness goals. Here is a link to a calculator to help you figure out how many calories you should be eating in a day.

ADF = Alternate-day Fasting, as it says on the tin, fasting every other day rather than 5:2.

Michael Mosley has recently unveiled a new website to accompany his new book on the subject. Please go check them out, as he's the whole reason most of us are here!

I know a number of people lurk on this thread, as this is currently quite popular. Please just jump in and post if you're new- you'll find a lot of support here.

Here is a list of links to get you started with this way of eating. Please let us know if you find a new article or some other information online:

First things first, here are links to some of our previous threads: most recent one before that another one!

Another thread which breadandwine has started is a good resource for some of the links and tips that get lost in these big threads. In addition to sharing links, we try to condense some of our top tips for fasting there. Keep in mind, we all do this differently, so these are just tips, not rules. This might be a good place to catch up with us if you're feeling a bit lost!

frenchfancy has a recipe thread over here, please post any low-calorie recipes there so they don't get lost in these bigger threads!

If you've been at this a while and are moving on to maintaining your goal weight, there is a thread here to discuss that.

Here is the link to the BBC article regarding Michael Mosley's findings, which was featured on Horizon.

There's a link to the aforementioned Horizon programme here.

A blog post here gives some of the scientific explanation for why this way of eating helps you to not only lose weight, but improve your all-around health.

A Telegraph article which comments on the diet and gives a brief overview by Dr Mosley himself, very informative if you're just starting.

A study discussed here gives commentary specifically addressing the effect of this diet on obese people (both men and women), with regard to both health and weight loss. ("After 8 weeks of treatment, participants had an average 12.5 lbs reduction in body weight and a 4 cm decrease in waist circumference. Total fat mass declined by about 12 lbs while lean body mass remained relatively constant.) it also mentions "Plasma adiponectin, a protein hormone that is elevated in obesity and associated with heart disease, dropped by 30%. As did LDL cholesterol (25%) and triglycerides (32%).")

Something to consider if you are currently your ideal BMI: this appears to suggest the benefits for women at a lower BMI might not be seeing the same health benefits that are found on men at their ideal BMI.

A BIG THANK YOU to all who have been contributing, btw. Most of us are learning this way of eating as we go along. All of the links above have been posted by others in our previous threads, and they've been very helpful. Sorry if I haven't given credit where it's due, but it was just enough of a job getting all the links re-copied and back into one post.

Come join us, and tell us about your experiences with this diet!

OP posts:
BsshBossh · 26/03/2013 19:39

storm yes, no fasting (hadn't discovered IF then).

BsshBossh · 26/03/2013 19:46

Betsy mine is based on normal weight BMI, but because I'm aware that BMI is not "normal" for everyone I'm going to see how I look and feel when I get to goal. But it gives me a good guide.

Headinclouds I'm averaging 1lb a week which is fine by me as I like eating loads my TDEE on non-fast days.

dines · 26/03/2013 20:15

Good evening everyone feed day for me today, dont do so good on these days I really need some motivation to try and do 4:3 this week to make up for my feed days. Help!

zippiedoo · 26/03/2013 20:17

Fab holiday tips, I'll defo try the 'mini fasts', it'll be nice to have a meal with the family and maybe a desert without feeling deprived! Thanks Smile

Itsaboatjack · 26/03/2013 20:34

bvb I once read or heard somewhere, can't remember where, that the easiest and healthiest weight to maintain is a bmi of 22. I have no idea if that is true or not but that is my goal for now. For me that is 10st exactly. I know from when I've been there before (many years ago after doing lighter life) that if I go much below that then I start to look a bit gaunt in my face. So I'm aiming for that now but will reassess along the way.

dines, I know what you mean about feed days, especially the evenings for. Stay positive and remember you don't need any snacks after your dinner.

BetsyVanBell · 26/03/2013 20:39

I never knew my weight in my 20s so have no idea what ideal I'm aspiring to! It's nice to think I've had a very relaxed attitude to my body all those years, I guess that's why it was such a shock to find myself very overweight a couple of years ago.

I don't think I'm far off my ideal weight actually but it's more a matter of toning unfortunately. As much as I love exercising it is quickly dropped from my schedule due to any number of eventualities. It's a good realisation so am musing on how to change my habits.

BetsyVanBell · 26/03/2013 20:46

itsa Yes, I have the same problem - now I'm older my face will look gaunt if I lose too much more, despite my arse and thighs merrily clinging on to every last ounce of fat!

lottie63 · 26/03/2013 20:50

Oh I've dropped off the wagon. It was all going so well too but for last 2 weeks have eaten far too much every day. Am going to try again tomorrow.

headintheclouds · 26/03/2013 21:05

bvb my magic number is the weight that I've not been fo 15 years! Id like to be a size 12 again and normal BMI which I would be at 9 st 7 . It's crept up slowly over those last few years...I just don't want it to be another 15 yrs for it to creep back down... I'm hurtling towards 50 and would quite like to be as slim as I was on my wedding day Smile

headintheclouds · 26/03/2013 21:06

Thanks for all the replies by the way!

Southeastdweller · 26/03/2013 21:15

Last fast day of the week almost over now. Dinner was some cottage cheese and capers - 150 calories and quite filling. About to go really crazy now and have an Options with a dash of milk. Grin

I'm doing 4:3 this week because I feel like I need to correct any damage I did last week on two feed days when I lost sight of the end goal and ate too much. Because of bad planning I did two of the days - Monday and today - consecutively and my experience of this is what I'm dying to share right now.

Yesterday night I was dreading today but it's been more than fine. I've had so much energy today I almost skipped to the gym via Waitrose after work. Like alot of people here I've been surprised about how much energy I've had on fast days and I've been shocked today about how much energy I've had when I anticipated being lethargic. I'm not bothered about losing weight or plateauing this week - the fact that fasting on two days in a row has been completely OK, even slightly pleasurable, is enough. I also feel clear headed - like I've had an eight hour unbroken sleep. I am utterly amazed.

Looking forward to a veggie sausage roll tomorrow for breakfast and some biccies for elevenses!

Good luck everyone who's fasting tomorrow!

rubyblue · 26/03/2013 21:27

new to thread. does anyone have any tips on coping with low mood on fast days? Michael M says in his book that he feels fine. I am ok most of the day but by evenings, even after small meal, I am really short tempered and tired, as in more than normal!

HopAndEggRoll · 26/03/2013 21:28

First fast day today. I've found it easier than I thought but have been a bit clumsier than normal and a little spaced out.

I did less than 500 cals today which is fab but I'm looking forward to tomorrow. Just hope I don't overdo the feed days, will have to keep a check on myself.

plecofjustice · 26/03/2013 21:37

Hi ruby

me too sometimes. I've been fasting since September, so what I do now is do something I like for myself, so take some time out to have a bath, get warm, drink some very yummy tea - I recommend Yogi chocolate-chilli.

I also warn my partner and apologise in advance!

sweetkitty · 26/03/2013 22:26

Had Chinese tonight for dinner and I feel unwell, bloated and sick Hmm love Chinese too but it will be a while until my next one.

Fast day tomorrow Grin

artemis17 · 26/03/2013 22:34

Betsy i just want to lose a couple of inches from my waist, so figure 7lbs loss should do it. Taking its time to go though, but i know it will. Along with exercise and healthy eating ive never had any problems with my weight, always on the low side of normal BMI. I like the discipline 5-2 gives me, but plan to do 6-1 once i get the waist -rather than the weight- i want if that makes sense.

ellenbrody · 26/03/2013 22:35

I'm planning on a mini fast tommorow and Friday, not going over 1000 cals and having as long a fast as possible. I'm trying to get a bit extra 'in the bank' as being off work surrounded by chocolate for the next two weeks may be a tad tricky! I'm maintaining now rather than losing but am a bit nervous about joining the other thread, it feels like a commitment that I'm not sure I'm ready for! Grin

Itsaboatjack · 26/03/2013 23:26

Well done southeastdweller. I first started doing 2 consecutive fast days a few weeks ago when I had other stuff on in the week and so it was the only days I could do them. Like you I was surprised how much easier it was than I thought it would be. So I've carried on doing 2 days together and then that leaves the possibility of doing another one on Friday if I think I need it.

On the whole I've found it quite easy and also have plenty of energy, because of school runs and an after school club I end up walking at least 6 miles on a Tuesday, as well as a HIIT workout in the morning and working all day.

Do you think you'll do your 2 fast days together again?

virginposter · 26/03/2013 23:27

headintheclouds 21lbs in 7 months doing a 5:2 and 4:3 mixture and moderate exercise. I didn't want to lose too quickly as I'm 59 and will look too gaunt but I'm very happy with the loss so far. My friend (5 years younger) has been doing this for 10 weeks and has lost 21 lbs the same as me but she has been going crazy in the gym 3 times per week and very long walks on the other days and she is overjoyed by her success.

Betsy at first I wanted to be a) a healthy BMI (whaterever that really is) and b) back to a size 12, but as womens sizes have changed over the years and I'm now a size 10, I've decided that 10 stone (currently 10st 2lbs) would be my first target. Then I will re-assess and decide if I need to lose anymore by asking my DH and also by how I look and feel. I am very aware that I mustn't go too low now that I'm old mature so I think I'll know when I get 'there' Grin

virginposter · 26/03/2013 23:31

headintheclouds forgot to say that I think 16lbs loss by August is very possible - go for it Smile

virginposter · 26/03/2013 23:41

dines I have another friend who is doing this woe and she has lost 1 stone so far but struggled a lot at first. She is now doing 4:3 as she finds fast days so easy but struggles on her 'eating' days.
Maybe 4:3 (or even alternate days) would suit you too as there are less 'eating' days to be controlled. I sometimes do 5:2 and sometimes 4:3 but must admit I prefer the 4:3 as I feel that even if I overeat on the 'eating' days, the fact that I've had 3 fasts more that makes up for it and besides I really do like to do 3 per week.

virginposter · 26/03/2013 23:51

rubyblue I've found that the more I do this woe the less my 'symptoms' get. I am less short tempered now and also today was a fast day but I didn't feel cold. A few months ago my body struggled to keep warm despite lots of layers and log fire!

swallowedAfly · 27/03/2013 06:44

morning all - big bounce up on the scales today - 11.4. bit gutted - also looking really fat again and feeling very bleurgh about my body. this week so far hasn't been going well on the food and energy front.

plan is to fast today and do the full walk to and from work (usually get a lift part of the way there) and to try and keep busy and moving all day. felt wiped out yesterday and ended up eating quite a bit and spending most of the day in bed catching up on sleep so the scales were never going to be pretty.

also think i must have hit around the ovulation time of my cycle and if the last time is anything to go by from here to actually having my period is the worst time for losing weight. will try to keep thinking long term and not be discouraged.

lowest weight last week was under 11.1 and nearest i've been to it this week was 11.1.8 for all of one day. also trying to remember it is wednesday - it just feels like the end of the week already! bored.of.snow.

sorry for moany post.

Itsaboatjack · 27/03/2013 07:50

Don't be sorry saf we all have those days, just try not to feel too negative. Think of the bigger picture.

After my big loss last week, as expected I bounced right back up during the week but have managed to get it back to down to exactly what it was so no loss this week for me.

Good luck to all today's fasters. I was going to have the chocolate that I have been telling myself over the last couple of days that I could have today. Not sure if I will now though, will see how I feel tonight.

Dotty342kids · 27/03/2013 08:18

HALLELUJAH! The scales showed 11st 0 for the first time today after spending 3 weeks bouncing between 11st 3 and 11st 1. So pleased to see that, though of course after an eating day today that's bound to bounce back up again. Still, it's progress Grin. Was beginning to panic slightly that I'd already hit a plateau after only losing 7lbs out of the 15-20 I need to lose to get into healthy BMI range.
So, to anyone who's getting disheartened for whatever reason, just keep plodding on - you will get there!
Doing alternate days this week as trying to get ahead of myself before chocs and a few days away next week!