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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 28 - Come and join us! The threads may be getting on a bit but the new starters keep us young and fresh!

986 replies

BetsyBell · 10/10/2013 10:49

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 these threads started!

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:

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.

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 · 20/10/2013 19:06

MrsF I love how completely flexible 5:2 is.

BsshBossh · 20/10/2013 19:06

Itsaboat good job you run a pub :)

MrsFlorrick · 20/10/2013 19:08

Greenkit.

I eased myself into this by doing 16:8. This is fasting everyday for 16 hours ie the time you sleep and skip breakfast so first meal is lunch.

After a couple of weeks I dipped my toe and tried a few mini fasts of under 1000 cals. And then into full fast days.

Be under no illusion. My fast days often ends up at 600 cals rather than 500. I've still lost weight and my blood pressure has come way down.

Don't sweat it if you can't get to the 500 cal goal. Ease your way into it.

Also exercise. I do Jillian Michaels. 30 Day Shred, Six week six pack. You can download on iTunes or buy DVD. They are 20 to 30 min workout you do 5 days a week. It's high intensity training so it helps shed fat and build muscle and core stability.

I can do it with my 4 and 2 yo around. You could slot it in before or after work. It's so quick.

Also the workouts are designed so they can be done by anyone. This lady is the trainer off Americas biggest loser so her program's are done by people much larger than you (or I was).

I seriously rate it. It's a quick way to tone up when you have DC and a demanding life.

And we are all here for moral support.

You can do this!!

Itsaboatjack · 20/10/2013 19:11

Grin indeed Bssh

MrsFlorrick · 20/10/2013 19:19

Bsshbossh. That's it! It can slot in with anyone. And that's part of what makes it sustainable.

The sustainable part is important for me. I did Dukan and lost most of the weight. And last autumn I was only just over a stone from my goal weight. I stopped Dukan and ate biscuits and by Xmas I put on 2 stone. It was effective for weightloss but not for once weight was lost.

5:2, Intermittent fasting, 16:8 or which ever one you want to do. It helps get you to a healthy weight without any daunting or crazy food group cutting or radically altering of your life. It also has major health benefits too and you reap those long before you get to your goal weight.

MrsFlorrick · 20/10/2013 19:35

And I'm like Bssh. I eat way more at the weekend. Then during the week I fast and eat under TDEE which allows me weekend extras and Wine!

Eatriskier. Your aunt sounds dotty. Cutting alcohol is great but she may just compensate by eating more choc or crisps.

It's hard to tackle your weight. The fear of failure along with the desperation of not wanting to be the fat one and the fear of not having your food crutches (biscuits chocolate). For me this has been amazing and completely painless and I still have treats here and then when I can. So I still have a v small amount of choc or Wine or a dessert at the weekend.

I no longer use biscuits as a crutch on the tough days (DC whining squabbling, not well and DH away on business and me alone with it all). I just don't need it. And I can have just one biscuit rather than an entire packet now. Ditto chocolate.

MrsFlorrick · 20/10/2013 19:35

And I'm like Bssh. I eat way more at the weekend. Then during the week I fast and eat under TDEE which allows me weekend extras and Wine!

Eatriskier. Your aunt sounds dotty. Cutting alcohol is great but she may just compensate by eating more choc or crisps.

It's hard to tackle your weight. The fear of failure along with the desperation of not wanting to be the fat one and the fear of not having your food crutches (biscuits chocolate). For me this has been amazing and completely painless and I still have treats here and then when I can. So I still have a v small amount of choc or Wine or a dessert at the weekend.

I no longer use biscuits as a crutch on the tough days (DC whining squabbling, not well and DH away on business and me alone with it all). I just don't need it. And I can have just one biscuit rather than an entire packet now. Ditto chocolate.

NotAsTired · 20/10/2013 19:47

Hello everyone. Smile

Hey there, Not2B great that you worked it out. Grin

BsshBossh · 20/10/2013 19:52

I'm gonna add another reason I enjoy 5:2 (and other forms of intermittent fasting) and find it sustainable in the longterm Greenbit and other newbies. It's been very effective in getting me to reset and control my appetite. I briefly dabbled in Paul McKenna and intuitive eating but couldn't really get a handle on "eating when hungry" and "stopping when satisfied". I simply couldn't connect to these natural physical signals because I'd been so far removed from them (since childhood really). Fasting enforced a complete break for my digestion and put me back in touch with true physical hunger and satiation. I think some other fasters here have found the same thing.

Greenkit · 20/10/2013 20:19

feeling enthused

I am on nights tomorrow and the next day, so will start it tomorrow with a fast.

BsshBossh · 20/10/2013 20:28

We'll keep you company on the Monday fast then Green.

PoshPaula · 20/10/2013 20:32

I'm fasting tomorrow. Am feeling really fat after this weekend. I worry that I do eat too much on NFD's. Anyway back to it tomorrow! I'm almost looking forward to it.

BsshBossh · 20/10/2013 20:43

Just completed my week's logging on MFP. I haven't logged in months but got back into it since resuming 5:2 after the long school summer holiday and as I love stats/numbers/graphs it's made for such interesting reading. Here's my week in calories:
Mon: 198
Tue: 1733
Wed: 1707
Thu: 149
Fri: 2700
Sat: 2838
Sun: 2581
With a TDEE of 2000 to maintain current weight, my average daily calorie intake is 1700 this week = daily 15% reduction of TDEE calories. This is similar to previous weeks too. Seeing stats like these certainly obliterates any guilt I might feel about my indulgent weekend eating. It all balances out.

southeastdweller · 20/10/2013 20:54

Just thought I'd mention that the Yorkshire Provender soups are still a third off at Waitrose.

Best of luck tomorrow to all the Monday crew.

alfiemama · 20/10/2013 21:06

Wow just seen your photo bsssh! It's amazing and a real inspiration. Well done you.

Great way to look at the calories. I never thought about breaking it down over a week. Can I ask what you eat on your fast days and when? Once again sorry if you have been through this already.

What a lovely thread this is. Great to see you are all happy with this way of life. Grin

Preciousdaisybear · 20/10/2013 21:12

As a newbie can I agree with the comments about sustainability being so important. I started the dukan and lost heaps of weight and in honesty enjoyed tucking into the steaks etc but... in the long run it drove me crazy with carb longing and the second and I mean the second a potato or a piece of bread touched my lips the weight crashed back on again. This WOE I have been doing for only 3 week now but it does not feel at all like a diet and I can really see it working for me. Feeling v positive about FD tomorrow. Good luck to all those fasting with me!

BsshBossh · 20/10/2013 21:26

Thanks alfiemama. I've always eaten just once on FDs - at night, single meal, dinner. For the majority of my fasting time it's been 500 cals of dal and rice. But these past few weeks I've not been hungry enough by the time night rolls round so have been having just a cup a soup, an apple and a 10 cal jelly (not very nutritious but as the rest of my diet is quite healthy I don't sweat it).

Talkinpeace · 20/10/2013 21:34

alfie looking at calories over a week was something we picked up on the early threads - linked to my memories of my HV getting me to not stress about what DD ate at any meal but to add up what she ate over a week.
It worked, I stopped worrying about the trees and saw the size of the wood.

alfiemama · 20/10/2013 21:35

Your stomach must have shrunk massively. I think that will be something I will have to work up to. I was planning on skipping breakfast and then having an apple around 2pm and then an early tea of maybe soup. That's my plan anyway.

I'm up to 1230 cals today and wonder if I should make myself have something else? Or should I just stick to this. My Tdee is 2090.

KickassCoalition · 20/10/2013 21:41

Well I made it today, ate under my TDEE to make up for yesterday, and with a successful fast tomorrow, I should be ok.

So, I'm looking at
Fri- 500
Sat- 2978 Blush
Sun- 835
Mon- 500

It's great reading all your posts so I can see what's happening with everyone else.

It makes a lovely change from SW, I was just eating too much because it was 'free' food and then topping up with chocolate and crap, but like MrsFlorrick says 1800 calories soon starts to look like a lot after FDs!

I also had a lovely whole wheat wrap with peppers and mushrooms and a small amount of barbecue pulled pork for tea- it was so nice and I'm quite proud of myself for just eating that.

I'm going to try higher protein and avoid white bread/pasta as much as I can because it hates me.

Making muffins tomorrow with my girls- as soon as they've cooled they're going in the freezer!

Will check in for FD tomorrow- thanks for the warm welcome everyone.

alfiemama · 20/10/2013 21:43

Thanks Talkin. I always tried to stick with 1200, because that's what we have drummed into us we have to do, to lose weight. Then when I fell of the wagon big time say at weekend I would think what's the point and carry on stuffing my face and feeling a failure. I never even knew what my TDEE was until I read this thread and changed myfitness to it.

BsshBossh · 20/10/2013 21:43

Your stomach must have shrunk massively Yeah, but then it's also become very elastic - compare my FDs with my weekend days Grin. I went hardcore 1 meal FDs because I found it easy to do so. Many here eat twice, even thrice a day on their FDs and are successfully losing so do what suits you alfiemama :)

KickassCoalition · 20/10/2013 21:46

Alfiemama I get sick on 1200 a day- really ill :( I'm only little as well so it ought to be enough for me to physically exist on, but major wagon falling would ensue!

I forgot to say talkin that I know fizzy pop (especially diet) is really bad for you but I can't kick it!

It was easier giving up smoking!

alfiemama · 20/10/2013 21:50

Bssh I bet it's fine. I lost 7 stone after first son and was shocked how it just sprang back. You certainly don't loom 'baggy' on your piccies.Grin

Kick I used to like fizzy too. I found switching to sparkling water helped me. Not as good as still but much better than fizzy pop.

KickassCoalition · 20/10/2013 21:53

Cheaper as well- The price of coke is unreal!

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