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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 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:
akarucker · 12/05/2013 08:38

Not weighing myself this morning was so hard...the first time in about 20 years I haven't stepped on the scales when I wake up.

Emilythornesbff · 12/05/2013 09:16

Good going aka

So many ppl doing well here.

BetsyBell · 12/05/2013 09:18

Forkoff Gosh that is interesting - especially the bit you've highlighted, definitely good motivation! Great that you're enjoying MFP :) I've been keeping a food & exercise diary for a while and I find it incredibly helpful, especially when I was starting out. I would often put down the naughty snack as I'd realise I'd have to type it all into my spreadsheet - it stopped the mindless eating and made me pay attention.

aka Which habit's harder to break? The chocolate or the weigh ins?!

I've done a good run this morning so now looking forward to eating a lovely Sunday roast at the in-laws' later. If I don't nibble in the evening then I can get a good head start on my Monday fast too. Interestingly, way before I started 5:2 I did notice from my food diary records that I would often lose weight after a big Sunday roast lunch and I was aware that having an early big meal then nothing in the evening was a good choice for me as I'd have a lovely big gap between my Sunday meal and breakfast on Monday.

Emilythornesbff · 12/05/2013 09:21

Well done on your run betsybell. Exercise is hard without regular child are, I miss it.

Just checked my BMI, which is 22.3. So good, but I'd like to bring it down.

swallowedAfly · 12/05/2013 09:28

there are so many myths about food aren't there? i'm afraid i don't buy into the 5 a day business either - i think it's just another way of making you buy and eat more and there has been so much information leaking out about how much influence industry has over the healthy diet guidelines.

the body is very, very good at getting nutrition out of anything you give it. i seem to remember a show on the bbc about a child with eating phobias who had eaten nothing but white bread jam sandwiches his whole life and they gleefully ran a whole battery of tests with world experts and top equipment etc hoping to find all this stuff wrong with him and there was NOTHING - with the best testing in the world they couldn't prove, as they obviously wanted to, that he had anything wrong with him or that his physical development had been in any way affected.

clearly not recommending that as a way of eating but it does go to show that there is one hell of a lot of obsession with what we buy and consume that we just assume is backed up by hard science and reality. often it isn't. there are food stuffs out there legally on sale that we know are killers yet we believe the same food industry and governments when they tell us what is good for us. why would you trust an industry that says 'you must eat breakfast' when it also peddles glucose fructose syrup and trans fats into all of it's products? Confused

sorry not sure where that came from.

Prawntoast · 12/05/2013 09:30

Woke up this morning and decided to fast today, am close to the 9's and want to see whether slotting in an extra fast will do the trick. Also as ate out last night simply am not feeling hungry anyway. Other people's reactions have been interesting, a couple of colleagues at work have commented on the weight loss and are interested in IF, MIL is horrified about the whole idea of fasting and says I should do slimming world like she is. Only problem with that is she moans about being on a diet all the time so she's not a glowing endorsement for it! I'll be sticking to this woe thanks!
It's an interesting article about dementia, I do stress the other health benefits of this woe to others if they ask me about it but I don't think they see beyond the weight loss side of it.

BetsyBell · 12/05/2013 09:32

Thanks Emily* It's why I like running - I go early, before everyone gets out of bed and am only out the house for 40mins - only works on sunny spring/summer mornings though! I am aware that this sounds impossible with infants in the house - I didn't even start considering an exercise habit (beyond pushing round a sodding pushchair for hours) until both kids were at school/preschool. Oh and I can't exercise with any food lurking in my stomach so it has to be before I've had a meal that day - easier on a fast day!

I'm currently aiming for 22 BMI, but will probably want a new target when I get there Smile

EagleRiderDirk · 12/05/2013 09:47

prawn hahaha 'your diet is terrible, you should do mine, I hate it'. Not the best sales technique!

postmanpatscat · 12/05/2013 10:07

Morning all :)

saf and others if you want an alternative view on the cholesterol/5 a day/eat well plate/glucose-fructose syrup so-called 'food' industry have a look at Zoe Harcombe's work here.

wonderingagain · 12/05/2013 10:11

SAF I agree with your slight rant there. Government health advice is so catch-all it misses the point for most people.

BetsyBell · 12/05/2013 10:49

Absolutely agree saf, the so-called science behind much govt advice is sponsored by processed food companies Hmm . I hadn't come across Harcombe before PPC, ta for the link.

monster54 · 12/05/2013 10:58

Morning ladies,

Miserable couple of days binging om rubbish. Ridiculous emotional eating.

But no alcohol at all so hopefully saved some cals there....

I have started day 1 of the SQUAT CHALLENGE!!!! Who is with me?!? My legs and bum are my prob areas so hoping this will help!

wonderingagain · 12/05/2013 11:39

After 3 NFDs involving lots of cake and booze I have put on 3lbs. I can handle that. Rapidly running out of calories for today but hoping for the best.

Dotty342kids · 12/05/2013 12:07

Oh monster I'm on day 10 of the squat challenge Smile, not finding it too bad so far, weirdly! I'm up to 110 today. No idea where i'm going to find the time to do 250! And not sure what difference it's making either but it's quite entertaining to try and do something a bit different.

Today am on an eating day but doing a mini fast which, for me, means nothing until teatime when I shall have a lovely roast dinner. Provided I just have 1-2 roast potatoes and have a skinless chicken breast which is the only bit I like anyway, then it comes in at about 600 cals.
Then proper fast on Monday as usual.

Hope you're all having lovely Sundays!

postmanpatscat · 12/05/2013 12:11

Squat challenge sounds seriously scary (I'd rather run 10k!!)

Not sure I'd call this a lovely Sunday, lesson planning and report writing on my agenda Sad Best to get it done while I have the house to myself though.

Tortoiseontheeggshell · 12/05/2013 12:44

aka et al, I absolutely won't tell anyone that I'm doing this diet. I mentioned it on Facebook in a reeeeaaaaallllly speculative way once, where the point of the post was totally not about the diet really, and I immediately got a slew of good friends, people who DON'T comment on weight/dieting usually and all of whom are more overweight than I am telling me that it was stupid, that the body would go into starvation mode, that I should look at WW instead, blah. And I'm like...you know, I am totally anti diet industry, I am not at all endorsing this diet (at the time I hadn't tried/researched it), but even i can see that the body won't be thrown into "famine mode" after one day of light eating. Sustained low calorie eating, like on WW, yes. Sporadic fasting, no.

So my plan is to say nothing, and then just one day be extremely slim and gorgeous. And smug. It's a good plan, I think you'll agree?

Hey, odd question. DH and I (he's doing this too) measured our waists at the biggest point today. OMFG, seriously. Both of us were utterly shocked, and couldn't meet each other's eyes properly. The more so, because we're both technically within 'healthy' BMI at the moment, espcially given that I have already lost 3lb in just under two weeks on this plan, although both clearly over where we should be for us. So, major eye opener there. But the weird part. A month ago, when I was at my heaviest, I bought a pair of jeans that fit really comfortably then, and are now a tiny smidge too big, which are 29" waist. My waist measurement today comes in at 36". (Blush) ???????

postmanpatscat · 12/05/2013 12:55

tortoise that's odd...did you have the tape measure back to front?!! Or a carb blowout last night? Like your plan, btw!

akarucker · 12/05/2013 13:06

tortoise the waist thing is the same for me. I measure a whopping 9" higher with a tape measure, than my jeans/trousers say I am! Something doesn't add up.....

And yes, I don't think I'm going to mention 5:2 again to anyone. I seem to get inappropriate comments when I'm fasting (starvation mode/not healthy/can't be good to starve yourself etc), and I get inappropriate comments on a NFD (I thought you were 'on a diet'! I see that didn't last long, blah, blah). Well, you know what.......I will do what I want, when I want, and if you don't like it, don't do it!!!!

swallowedAfly · 12/05/2013 13:11

i suspect clothes sizes are labelled to make us feel good rather than having any bearing on reality. you try on vintage dresses in your usual size and you can't get them over your legs ime.

will have a look at that link thanks.

Tortoiseontheeggshell · 12/05/2013 13:32

SAF, sure, but I'm not looking at just the size - in fact I was in the US, the land of vanity sizing, so the dress size was an 8 instead of my usual 12, meaning that I was already disregarding it...but the waist explicitly says 29 inches. And I have bought several pairs of jeans that say 29 or 30", and it's not just about where on my waist they're hitting, because some are low rise and some high. DH had the same thing; he measured in at 37 inches, and his "fat jeans" are 32". Odd, but interesting that you're the same, akarucker.

(Also v depressing because I'm the same weight as I was 10 years ago, when I measured my waist for a corset and came up with 28 inches. Same weight, but seven inches more around the waist! Bloody children...)

Emilythornesbff · 12/05/2013 14:24

tortoise is it possible that the waist you measured (being the "widest part" round your middle, is just in a diffent place from the "waist" (narrower part round middle) that the jeans label refers to?

eagle and prawn Grin at " you should do my diet, i hate it"
There are definite some ppl i wouldn't "confess" my current WOE to. Can't be doing with that criticism -done -up -as -concern bollocks.

EagleRiderDirk · 12/05/2013 14:44

They don't work like bra sizes do they? Where you take your measurement and knock something off it to get the number. I have no clue what my waist measures or what waist my clothes are labeled so this is purely a guess.

BetsyBell · 12/05/2013 14:49

Have you tried measuring the trousers out of interest?

I didn't tell anyone outside of immediate family when I started but now people can obviously see the results and ask how I've done it I'm happy to pass on all the info!

INeedThatForkOff · 12/05/2013 16:19

It's no wonder that obesity is such a problem really is it, when someone can wear 32" jeans when in fact they have a 37" waist. Perception is just so skewed now that I and I think most people don't really understand what a healthy body looks like.

swallowedAfly · 12/05/2013 16:23

wow that zoe character is vitriolic about the 5:2 approach.

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