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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.

The 5:2 thread number 29 - The C word party season is not too far off, come join us and drop a few pounds. Warning! This way of eating is so easy you may never want to stop...

999 replies

BetsyBell · 22/10/2013 21:54

The continuing thread for those of us following the 5:2 fast or other forms of fasting such as 4:3, ADF, or daily 16:8.

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 normally - or approximately your Total Daily Energy Expenditure (TDEE - see explanation below). 4:3 is the same except you fast on 3 days in the week. Alternate-day fasting (ADF) is just how it sounds; you fast every other day. 16:8 is another form where you stick to only eating in an 8 hour window each day, therefore fasting for 16 hours each 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.

NFD = Non fast day

NSV = Non scale victory

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

Lurkers and new starters: please just jump in and post - you'll find a lot of support here and we’re a friendly bunch.

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:

All our previous threads can be found by browsing through the fasting section of the site.

Another thread which breadandwine has started is a good resource for some of the tips and links 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.

This link nicely demonstrates that there are many body ‘right’ body shapes and types, because what we are actually aiming for is low body fat for fitness and 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. (I highly recommend this for an overview)

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. 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.

A HUGE THANK YOU to Greeneggsandnicht for putting together all this info and resources into one concise OP text, much appreciated by so many 5:2ers!

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

OP posts:
BsshBossh · 03/11/2013 09:46

Interesting link Breadandwine. Deactivating the famine reaction by eating more (nutritious) food and increasing regular physical activity - I like that idea. I wonder whether my weekly weekend binging overshooting TDEE has helped me keep the momentum of weightloss going this year compared to last year (where I generally ate a consistent daily calorie amount). Hope I haven't jinxed myself.

BetsyBell · 03/11/2013 10:20

Here's hoping my awful half term food and drink intake is doing some good then re. famine reaction… [hopeful face emoticon]

Stomach pains this morning and I know it's from this strange holiday mode eating - seriously disordered and lacking in homemade-ness. I mean, it's nice to break from the routine and all that but now I just want fresh vegetables and lovely lean proteins again please!

The long morning shadows while running revealed a definite widening of the waist/hip area, trousers are feeling somewhat tighter too. Scales are currently inaccessible and I am grateful.

Back to routine tomorrow and it will be a good fast. I did at least get out for a quick run this morning, hopefully that will set a better tone for the day…

OP posts:
AngieM2 · 03/11/2013 11:07

The 'Fail on Sunday' has a supplement dedicated to 5:2 today.....though it obviously wont be as informative as this forum!

eatriskier · 03/11/2013 11:13

angie is that the little black dress diet thing? As someone on a different forum said - my black dress doesn't need to diet, it's small enough Wink

AngieM2 · 03/11/2013 11:40

Yes I think it is eat saw the ad on TV last night. I'm interested in what it has to say and the recipe's.

Bayliss1 · 03/11/2013 14:51

Oh crikey me...I've been doing 5:2 just a week now, started Tuesday (FD s on Tuesday and Friday) and today I could eat myself out of house and home! Is this a normal reaction when starting the diet?

lucyintheskywithdinos · 03/11/2013 15:14

Hello! Back from a couple of days at Mum's cottage with the DDs. I'm reallllly tired.

Tried the fitness age calculator, less than 20. I'm 29, so that is good! I was very sensible about food and even managed a fast on Friday. Did have lots of lovely Wine after the DDs went to sleep though. Also lots of walking.

I'm spending the rest of today relaxing on the sofa.

BigChocFrenzy · 03/11/2013 17:16

Re feasting: On 52 I've always had one feast day per week, as I was concerned that a weekly calorie deficit, especially with FDs, might lower my TDEE. Maintaining TDEE is essential for a long-term WOL.
So, this justifies my gluttony need to Frenzy.
[Grin]

BigChocFrenzy · 03/11/2013 17:22

The feast day may need to be fairly high fat. Didn't Dr Varady find with ADF that the NFD pizza eaters did slightly better than the healthy Mediterranean saddo.
I've ordered her book, mainly to see any research on effects of IF for women, young and also post-menopause. She is the only one who has done extensive human IF studies.
I suspect that the problems with IF that some hard-core women lifters / bodybuilders have reported arose because they have ultra low body-fat (as low as 12%) and they lift multiples of bodyweight. Hence IF may be one stress too many for the elite. Also they often have eating disorders, trying to keep BF so low.

BigChocFrenzy · 03/11/2013 18:13

Bayliss It can take 2-3 weeks to get used to fasting and feeding.
Maybe you need to experiment with timing and content of FD meals, so you don't go mad the next Day.
Try FDs with protein and veg. Stews , thick soups or salds are good. Omit fruit and starches.
Try whether you prefer 2 or 3 very small meals on FDs, or saving nearly all your cals for supper, so you don't go to bed / wake up starved.

Exercise really helps too.

BigChocFrenzy · 03/11/2013 18:15

Damn iPad: stews, soups, salads

Not2bObvious · 03/11/2013 18:50

Weird nfd that started as a 16:8 (closer to 14:10 but what the hey, better that a 24:24 Grin)
Didn't eat til around 11.30am, did some Davina kickboxing this morning first thing, then orange segments, grapes, black tea. Sounds v lean until you add in few crisps snaffled from kids treat at cinemaBlush
Nowt else apart from a good few dolly mixture (seriously am I 5?) til dinner. Surf and turf and grape and grape and grape... Uh oh...

BigChocFrenzy · 03/11/2013 18:59

not2b Your grapes are in the wrong form. You need more Wine

My NFD started healthy with fasted spin then salmon, 9 veg (!), sprouted bead, PNut butter and banana. BUT, I then compared B&J and Magnum ice creams - final total 5 tubs
Blush
So I was only just over TDEE, but half my cals were ice cream - the rest were wasted !
Grin

Not2bObvious · 03/11/2013 19:24

Ah BigChoc that's exactly what my grape was Wine Grin
Still sipping after a long day with dh off doing something team building while the home team were movie watching / shopping/cooking/cleaning. All is quiet and good now, kids watching yet another movie, him having bath, me having grapes, oh ok wineWink
Am I odd? Bought mini mince pies and cream for decadent Sunday evening pudding Confused

Bayliss1 · 03/11/2013 20:28

Ok BigChoc, I was planning on trying just having 2 meals tomorrow on a FD rather than 3 small meals. Looking forward to Tuesdays weigh-in though Smile

BiscuitsAreMyDownfall · 03/11/2013 20:35

Right I joined thread 28 and been neglecting this WOE for the last 3 weeks or so and put on 4 lbs. I really need to do this and know I can do it and do it right. Ive been having a difficult time at work so been consoling myself with biscuits.

So Im back again to try again. Tomorrow FD number 1 at the second attempt.

Work isn't much better, but if I wait until it does get better I'll be another dress size bigger and I've worked so hard getting down from a 16 to a 14. Dont want to go back up.

So tomorrow I am going to weigh myself and have a FD. I am going to go from exercising once a week to 3 times a week too.

Talkinpeace · 03/11/2013 20:37

I just read Mimi's article in the Daily Heil.
She's got an effing cheek cutting and pasting our points and getting paid for it.

OI! MIMI : I worked out "no snacking" before you and Michael did - that is why you quote me on your website about it.

I would kindly suggest that you donate your fee to a charity for children who cannot choose what they eat.

BigChocFrenzy · 03/11/2013 20:42

Welcome back, biscuits. Invest a few solid weeks in 52. I'm sure you'll see good results and want to stay.
Lots of us FDing tomorrow, so we all encourage each other

BigChocFrenzy · 03/11/2013 20:50

tip Your "no snacks" advice was really important to me, probably to most folk on this thread. Many thanks for that.
You're entitled to be totally p@ssed at any plagiarism.

Southeastdweller · 03/11/2013 22:01

Terrible carb carnage today on a NFD but salvaged by two poached eggs and a handful of nuts.

Welcome back biscuits. Please try to regularly post because it helps so much with motivation. I would also try not to buy any biscuits at all, easier said than done when they've been your crutch for so long, I know.

Tip I'm appalled at Mimi and wanted to let you know that as with BigChoc your no snacking advice has been crucial for me losing the weight and now maintaining Flowers.

rubbishfamily333 · 03/11/2013 22:22

hey thread, hope all are well Smile

well its my second fast day tomorrow. I am looking forward to it but also feeling kind of scared. Hmm

Does anyone drink protein shakes on fast days? I have got one that is very filling. I am wondering if I should have it in the morning as last week I felt quite light headed and unable to concentrate at work.

Chocupid · 03/11/2013 22:30

rubbish I sometimes do if I'm in a rush or cooking stuff I don't like for family! but I still only have it still tea time! Any earlier and it still triggers the hunger switch.
I'm with you fasting tomorrow!

annielewis · 03/11/2013 22:54

Hey everyone, hope you all had good weekends!

FD for me tomorrow too! Think I'll be finer, getting quite into it now, almost looking forward to it! :)

rubbishfamily333 · 03/11/2013 23:17

Glad we are in company fasting tomorrow! What are you both planning on eating?

BigChocFrenzy · 03/11/2013 23:19

rubbish Real food is better if possible. Try a mini-breakfast:

  • Thin slices of smoked salmon OR ham OR chicken breast OR hard-boiled egg PLUS
  • low carb raw veg e.g. cucumber, carrot, tomato
(NO bread)
  • suggested maximum total 100 cals

If you haven't anything suitable for tomorrow, ok try your shake.

Good luck with your FD Smile

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