Meet the Other Phone. A phone that grows with your child.

Meet the Other Phone.
A phone that grows with your child.

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 Thread Number 24 - Summer's still here so skip the snack and share the meal!

980 replies

BetsyBell · 22/07/2013 19:30

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.

NFD = Non fast day

NSV = Non scale victory

Michael Mosley has a website to accompany his 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:

All our previous threads can be found by browsing through our very own 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:
MissStrawberry · 02/08/2013 19:07

Thank you Talkinpeace. Do you use MFP for keeping track of the calories? Also, I have been having wraps (usually filled with salad) as I need to stay of sliced bread but sometimes I want something to dip in soup and wraps don't really work for that do they?

I feel panicky if I can't eat and really need to get rid of that feeling as it just makes me cross and upset Blush.

HellesBelles396IsDeeplyUncool · 02/08/2013 19:08

I usually have starter and a salad instead of a main. It's where the nicer dishes lurk and I have more room for pudding am less likely to overeat

MissStrawberry · 02/08/2013 19:09

1823 seems really high compared to what I have been doing before Confused.

MissStrawberry · 02/08/2013 19:18

Just filled in MFP but confused

Daily Calorie Deficit 157 calories

Projected Weight Loss 0.3 lbs/week

What am I doing wrong?

EagleRiderDirk · 02/08/2013 19:21

Set mfp to maintenance miss

you'll get a calorie deficit doing the 2 days of 500. and ignore its warning about eating too little on fast days

NaturalBlondeYeahRight · 02/08/2013 19:32

I'm finding the FD so easy now in com

MissStrawberry · 02/08/2013 19:34

I couldn't see an option for maintenance so I have put in 1823 calories and will just see how I get on.

MelanieCheeks · 02/08/2013 19:35

Set your loss to zero - that's maintenance.

NaturalBlondeYeahRight · 02/08/2013 19:36

3 weeks in. I'm finding the FD so easy now in comparison with the beginning. Just had salad and wasn't that bothered. Always get hungry around 2pm but its strange how hunger pangs just disappear given time.
Clothes don't feel better yet but waist feels thinner (typical pear shape, always the smallest part)
How are people planning on doing their holidays? Mini fasts or full ones?

MissStrawberry · 02/08/2013 19:42

Now I am even more in a pickle as I can't find the bit where it says what you want to lose.

MelanieCheeks · 02/08/2013 19:44

When you're choosing your goals, putting in your starting weight etc.

MissStrawberry · 02/08/2013 19:48

I have found a bit I can change to 0lbs lost a week. I can see I am going to get confused.

So, to lose 1-2lbs a week I eat 1823 cals a day for 5/4 days and 500 cals for 2/3?

Talkinpeace · 02/08/2013 20:41

miss strawberry
cool, isnt it!
pizza, sandwiches, you name it, just not some days Grin
you see why we become rather evangelical

EagleRiderDirk · 02/08/2013 20:51

miss yip, it will work like that! like tip said before you can eat a bit below to increase loss however what most people have found is you need the contrast between nfd and fd, so don't eat too below tdee. you will probably find that easy after a while as this woe kind of resets your tummy a bit so you aren't as hungry in general.

MissStrawberry · 02/08/2013 20:54

I am just worried I am going to become obsessed with food. I have been trying to lose weight for a year and haven't lost anything proper for quite a while yet don't feel I eat properly. Too little, too much, at the wrong times, etc etc. On AIBU there is a thread about how the OP, and later other posters, think this plan will bring an increase in anorexia. I am not worried about that for me, but thought you might want to explain to those that do.

Is there an easy way to calorie count though as I like to cook from scratch but lose the will to live with constant weighing of everything.

Talkinpeace · 02/08/2013 20:57

MFP (myfitnesspal) is great for us scratch cooks as you can put in things like 1/4 of an onion!

and frankly I've killed enough AIBU threads about dieting, its nearly a game
there are so many complacent fatties on there who do not want their habits challenged
whereas I like being lean and healthy (I ain't skinny, that's for sure)

EagleRiderDirk · 02/08/2013 20:59

The good thing about this woe is that you don't have to feel like youve screwed up if you go over tdee, and you can come below it another day.

I weigh things occasionally just to affirm I'm right, but I can sort of tell by sight what most things are weight wise. I do log everything, that suits me though. It doesn't make me obsessed with food, it just makes me realise I can't have a bottle of wine, a pizza and a chocolate cake at the same time. Trying to get things into a normal tdee is far easier and less worrisome than trying to get it all into a reduced calorie allowance I find.

And the key to fast days is planning ahead.

MissStrawberry · 02/08/2013 21:03

Won't I just get fat again though as I am fairly sure I have been eating a fair bit less than 1823 but not losing weight and have put 2lbs on but hoping that is due to my period.

MissStrawberry · 02/08/2013 21:06

What do you eat in fast days and do you start gently or try day 2 as a fast day for instance? I can feel myself worrying about this already and convinced I am going to fail again. I am just fed up of looking pregnant fgs.

wine0 · 02/08/2013 21:13

I'm nearly at the end of day 1. It's been a tough day and I've got a headache now. Do you think it may be related to fasting?

I have quite enjoyed giving my body a rest and drinking lots of water. Have dank too much tea though. Every time I felt hungry I made a cup of tea. Think I need to drink water instead of tea on my next fast day.

When do you recommend I do fast day 2?

Talkinpeace · 02/08/2013 21:17

missStrawb
relax.
have a look through the tips and hints
many of us skip brekky on fast days (other than tea and coffee) the hard core also skip lunch (other than more tea and more coffee) and then have a 450 calorie supper : generally vegetarian, soup / curry / stew type things and it seems to work
there is a whole thread of recipe ideas

PS
feel free to buy the books
BUT
we predate the books
many of us are quoted in the books and websites
THIS is the right place

MissStrawberry · 02/08/2013 21:22

I think I need a notebook Grin.

frenchfancy · 02/08/2013 21:40

missStrawberry don't stress it, it is easy, just 2 days a weeks stick to the 500 cals. For the first few weeks don't even bother about the non-fast days (but please don't call them feast days). It really is easy, once you find a couple of fast day meals you enjoy then it isn't hardship.

Almost one year in and I can't believe the difference it has made to my life.

MissStrawberry · 02/08/2013 21:47

I have no clue how many calories I eat a day. I also eat when I am not hungry and eat when I am sad/upset/cross so I need to work on that too I think. I am good at drinking water though and rarely have wine.

Talkinpeace · 02/08/2013 21:55

(((Missstrawb)))
that is one of the reasons we strongly recommend that new 5:2ers join MyFitnessPal (ideally under the same name) to work out what they eat
and therefore how they got to where they are
its not the same as calorie counting in that there is the "bollocks to it" leeway
but the awareness builds

and emotional eating (not my issue, but a common one) can be beaten, mostly by awareness

low booze : you're on a winner already!

Swipe left for the next trending thread