Meet the Other Phone. Flexible and made to last.

Meet the Other Phone.
Flexible and made to last.

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.

The 5:2 Diet Thread number 19! Cup of tea? or three?

986 replies

GreenEggsAndNichts · 08/05/2013 13:17

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 a 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. (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, 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:
BetsyBell · 11/05/2013 18:40

silverbeetle Yes, I once weighed a load of grocery shopping I was struggling to carry - quite the eye opener when I realised I'd been carrying around that same weight not that long before!

I should have stuck to 1 or 2 glasses Wine yesterday - can't drink like I used to and went to bed with a sore stomach after half a bottle. Mind you a few weeks ago I couldn't even drink one glass without getting a headache immediately so it's a bit of an improvement. sigh

Whoamireally · 11/05/2013 20:13

HI there I am now in my 2nd week of 5:2 but have only just found this thread! I am finding it pretty easy, am sip sip sipping water all day and generally feel great. Am not weighing as haven't any scales - yet. Stupid dry skin condition completely cleared up - great!

Just wanted to ask - on the morning after my fast day this week i woke up and literally felt drunk. I got out of bed and couldn't keep my balance. Went away after I'd had some breakfast. Anyone else get this? What causes it?

Talkinpeace · 11/05/2013 20:20

dehydration

rather than sipping at water all day, have a large drink occasionally : its about training your system to work with reserves rather than constant top ups

hence my eternal rant of NO SNACKING EVER

Talkinpeace · 11/05/2013 20:21

betsy
when I lost 3 stone doing ww, at the end of it I put 3 stone of food into a rucksack and carried it up the stairs
NO WONDER my knees had hurt before!

Whoamireally · 11/05/2013 20:35

I'm not sure about dehydration - I drank nearly 4 litres that day in total? Can you drink too much water? Could that be it?

Talkinpeace · 11/05/2013 20:42

definitely - read up on Antony Andrews ....

one of the really interesting bits of this WOE is how it works by overturning the bulk of advertising and food industry sponsored advice

  • you do not need breakfast
  • you do not need snacks
  • starvation mode does not exist in normal life
  • skipping meals is perfectly normal
  • having nothing to eat or drink for several hours will not kill you (it doesn't at night after all)

all we are really doing with 5:2 is going back to an age or location where the food supply was a bit more erratic : which is what our bodies have evolved for.
We did not evolve for 24 hour availability of cheap food.

ponygirlcurtis · 11/05/2013 20:56

Frozen wanted to say hi, I've been where you are before. I was size 20/22 before I lost a load of weight in order to TTC. It seems so daunting I know, but you can do it. Maybe break it down into small achievements. Aim first for losing half-stone, then a stone, then maybe 10%. I've only just started myself, so i don't know the answer to your 5:2 vs 4:3 question, but I will say - good luck!

Emilythornesbff · 11/05/2013 21:02

I think I've eaten a bit too much on my NFD.
Not loads thankfully.
Maybe I should do 2:5 Grin

FrozenFlowers · 11/05/2013 21:03

It is daunting, and I think you're right that aiming for small goals is the way to go. I'm feeling really excited now that I've decided to do something positive. I've done an online shop and planned some meals for the fast days this week. I keep thinking: I've done things that are much harder than just eating less food, so I know I can do this if I really put my mind to it.

akarucker · 11/05/2013 21:12

Does anyone find that they get negative comments when you tell people that you're losing weight on 5:2? The complements and encouragement seem to shift gear when I tell them how I'm doing it. Not sure why. Jealousy? Skepticism? Worry? Who knows!

ELR · 11/05/2013 21:13

And remember if you fancy something when fasting you can have it tomorrow!

ELR · 11/05/2013 21:15

aka yes it's like you've been taking diet pills or something!
Ooh that can't be good! I could never go without food! Yes but it won't last! Then when you say I've lost nearly a stone it's oh so how does it work?

Dotty342kids · 11/05/2013 21:46

Well done saf I'm so pleased for you. I have had my mum staying for the last two days so have been attempting to keep up with her wine habit (bad idea!) as well as eating the home made scones she brought with her. Oops.
However, a fab NSV today - went to Gap looking for some new jeans. Tried on the same type I currently wear and thought "hmm, bit gappy round the back", so asked for the next size down and they fitted!!! Not sure I could eat a three course meal whilst wearing them, but still! Didn't buy them in the end as they didn't have the colour I wanted but husband persuaded me into a lovely sundress instead.
All I need now is for summer to arrive.... Smile

WipsGlitter · 11/05/2013 21:52

Hi! I'm on about week three or four but only losing 1lb a week - is that right? Am finding it easy but was expecting more dramatic weight loss :(

postmanpatscat · 11/05/2013 22:05

dotty that's great! Sun should be about by Friday next week according to BBC weather for London!

wips 1lb a week is average on 5:2. Are you tracking food eg on MFP to make sure you're not eating too much when not fasting? Throw in some exercise too if you're not already? I lost 20lbs in 11 weeks but did a great deal of exercise and in last five weeks swapped one of my 500 cals days for a zero fast day.

WipsGlitter · 11/05/2013 22:07

I am tracking but not on my non days! Was so focused on the fasting! Good idea. Am hoping to re-start c25k soon. But good to know its the average loss. Thanks.

WipsGlitter · 11/05/2013 22:08

What's a zero fast? scared face

BetsyBell · 11/05/2013 22:15

TiP Exactly, and my bicycle tyres don't need pumping up as often #unexpected benefits of 5:2 Grin

wips 1lb a week is the way of it. It's not quick but it is consistent (when taken over an average of course...)

Talkinpeace · 11/05/2013 22:18

Wipsglitter
once you get used to being hungry and know it wont kill you, its really relaxing to plan a single meal and eat NOTHING for just over 24 hours
a few hard core (like BreadandWine) do 36 hours but I like family supper each evening.

in my case I go from Sunday blowout roast lunch through to Monday supper without food most weeks - and that supper is a 500 cal soup ;-)

EagleRiderDirk · 11/05/2013 22:23

wips and frozen - I'm one of those irritating ones who have lost a ton of weight in the first few weeks of doing this. I've been treating this like a learning exercise rather than a diet per se. I have a lot of weight to lose, so I know its going to drop quickly to start with and will even out so trying not to let it go to my head. I'm not able to do much exercise other than walking with a buggy so try to make sure I do that as often as I can. I watch everything obsessively on MFP, but I'm a stats geek and this appeals to me Blush. I started out with making sure I didn't go over 500 on FD, 2000 on NFD. Now I'm making sure I don't go over 1900 on NFD. I was so pleasantly surprised to find I could still have a choccie bar or bag of crisps occasionally (as well as Wine) but its been majorly about limiting them for me unless I can 'afford' them. I now find I don't hanker after them at all. Though I'm currently on my second Wine and have had some birthday cake today, as well as 3 balanced meals.

I hope that sort of helps you two a bit albeit in different ways.

Twinmama32 · 11/05/2013 23:05

aka & elr I've had the exact same reactions its almost like I've stated I'm going to try an eating disorder for fun.... Then when their interest peaks, and it usually does, I get bombarded with a thousand questions, and "you've lost how much???!"

Although I must admit when I first heard of 5:2 my initial reaction was also something along the lines of "I'm not into faddy diets..." Goodness how wrong I was! Blush

Talkinpeace · 11/05/2013 23:13

A lovely friend at the gym who is in her late 60's started 5:2 in February.
She has just been remeasured for a bra - cup size unchanged but a 4 inch drop round the ribcage.
She goes in under her boobs rather than out
and frankly looks great
and HER friends are now convinced

Twinmama32 · 11/05/2013 23:24

Wow that's impressive tip good on her!
To be honest I don't really care what people think all I know is that this is the healthiest and happiest I've felt in a long while. Anyways I've got you guys for moral support which is just fabulous....aw shucks Blush

EagleRiderDirk · 11/05/2013 23:48

Wow tip - that's great for her. What a lovely result.

My mum was initially sceptical that her daughter was starving herself (and my nut job sister went crazy about it) but she's seen how good its doing me and has now started. She was very disappointed to start with as she hasn't lost much weight but she has a lot of pill related bloating so I convinced her to look elsewhere than the scales. She's noticed her bras are looser already. Sometimes the scales can't show the whole truth. Even the district nurse told her that if she felt better on it then she should carry on.

INeedThatForkOff · 12/05/2013 07:32

Look at this this BBC article on the risk of dementia linked to obesity. This is shouting out to me:

Even those who were clinically overweight, a BMI between 25 and 30, were 71% more likely to develop dementia

that's me. If nothing else, that^ is my motivation for trying this WOE.

As an aside, I'm loving tracking on MFP. IT's showing me a happy medium between counting points on WW and binging when I feel like I've failed. 1900 cals is a lot to play with, even though I went over yesterday after drinks. I know I can balance that out over the course of the week with FDs and slightly fewer cals on NFDs.