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Fasting / 5:2 diet

The 5:2 thread number 39 - Chocolate-guzzling is NOT wanking: It should only be done in public! Learn healthy habits with our friendly 5:2 / IF support group

999 replies

BetsyBell · 13/02/2014 08:34

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 or app 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 TDEE calculator to help you figure out how many calories you should be eating in a day.

NFD = Non fast day

NSV/LSV = Non scale victory/Lifestyle (change) 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:

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

Tips and Links : 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!

Inspirational: eatriskier’s thread has some lovely inspiring stories which are worth checking out if you want some motivation to get started or keep going through a plateau. Please add your own too.

Recipes: frenchfancy has a recipe thread over here, please post any low-calorie recipes there so they don't get lost in these bigger threads!

Exercise: bigchocfrenzy has an incredibly informative and helpful exercise and fitness thread for discussion and advice on combining 5:2 with an exercise regime.

Maintaining: 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.

Other links
This is a BBC article regarding Michael Mosley's findings, which was featured on Horizon - link to that programme here.

This Telegraph article comments on the diet and gives a brief overview by Dr Mosley himself, very informative if you're just starting.

This blog post 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 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 article 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. (Though anecdotal evidence from these long-running threads may suggest otherwise…)

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 way of life!

And lastly, a few FAQs/Healthy tips :

  • WATER: Start each day with a pint of water; and drink plenty during the day.
  • Hot drinks: No limits on tea or coffee any day, just note any milk / sugar calories on FDs.
  • FDs: Concentrate on protein & veg; avoid / reduce starchy carbs & sugar, including juice. Soups & stews are good; ready meals are fine. Old hands skip breakfast & save most cals for supper.
  • NFDs: No rules, but to improve health, try to cut down on added sugar, artificial sweeteners, fizzy drinks, junk food. A few treats per week are good though! Aim to average TDEE over NFDs each week, but you may under-eat by say 20% on 3 NFDs to save calories for weekend.
  • CLENCH for health: Men & women should exercise pelvic floor daily.
  • Do NOT fast: if pregnant, under 21, or ill, even a bad cold. When ill, your body usually needs more nutrients and less stress. So eat to TDEE & cut out junk, added sugar, fizzy drinks.
  • BFers: start with 1000-cal FDs; optionally, reduce to 700 cals gradually.
  • EXERCISE: is healthy & can help weight loss if you you do NOT eat back exercise calories. Fasted training can burn more fat. HIIT works well with 5:2/IF.
OP posts:
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BigChocFrenzy · 15/02/2014 18:57

MrsF Your bf% is right at the lower end of the healthy range for your weight BF-Age

I hadn't realised when I gave the frame link that so many would calculate their ideal weight too Confused. That "ideal" should really be a range, not a single figure, to take account of very tall (MrsF) / hourglasses (Betsy*) / very muscular (me)

This is why I keep recommending waist and bf % as aims.

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LilyJoAndMe · 15/02/2014 19:02

Haha Grin
You've really set the cat among the pigeons Big Choc !!!

Well- on that second chart you sent it confirms what the 1st one said so that makes me one happy person . ( that's one at least that's not sulking on you Big ChocWink).

And as for waist measurement - mine is actually dead on half my height measurement so a little more to go .
But that's ok.

I'll still be doing FDs when I'm down to the weight I ( ah - just realised that the weight I want to be at has changed) want to be at. I'm really doing this for health reasons long- term.

Thanks for all your help Big ChocSmile. And xxxxxxxxx to us all.

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TwittyMcTwitterson · 15/02/2014 19:03

I generally do limit sweets to after meals Hmm

I started to by yoghurts and stuff like that but muller corners are quite expensive. Anything smaller and I'd eat two. I'm literally a nightmare. I'm 35% body fat. My thighs are atrocious.

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TwittyMcTwitterson · 15/02/2014 19:18

So my bmr is 1441. TDEE is 1981. I have to eat less than 1981 5 days a week n 500 2 days? 5 days sound quite easy.

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postmanpatscat · 15/02/2014 19:32

evee that sounds doable, first fast on Monday? It's a popular day! I'm usually a Mon/Wed faster but not this week as it's half term and I'm out and about too much.

MrsF stop being so hard on yourself!

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BetsyBell · 15/02/2014 19:36

That's it Eveesmummy! It is easy :) Some of us try to eat a little under our TDEE in the week to allow for a little extra at weekends.

OP posts:
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MrsFlorrick · 15/02/2014 19:51

Ok. Excellent. Looks like I'm ok then phew. Grin

My waist to height ratio has me at "extremely slim". Admittedly just under the boarder of "healthy".

Good job my body fat is at the lower end too. Grin

Thanks Bigchoc. Wink

Right where is my choclit then.....

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LilyJoAndMe · 15/02/2014 20:00

Eeves - it really is do- able .

Ahhh Mrs F. That's good news. Grin
Enjoy your choclit.

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Tiredemma · 15/02/2014 20:00

Ah- here you are.

had an unplanned FD today.

DS2 had an audition down in Herts- running late this morning so had no time for breakfast- it was 4pm by the time we got back so had nowt but water all day.

Just having dinner now 397 cals
Long grain and wild rice with M&S Count on Us Red Thai Curry (tin)

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TwittyMcTwitterson · 15/02/2014 20:46

So on a fast day am I better to eat 500 in one go or a few settings? Xx

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LilyJoAndMe · 15/02/2014 21:06

It's up to you Eeve. But some of us prefer to skip breakfast and save the calories till later.

Personally, when I first started I found it very difficult to wait until the end of the day to have my meal. I needed to spread it about. Since then I have understood that it was because I had got used to eating lots of carbohydrates and that meant I couldn't wait a long time between meals.
Now I can and I prefer to save all my cals till the end of the day.
It's up to you. But, it's very important to drink lots and lots of water/ teas / etc with next to no cals in whist you're fasting .
I'm on FD on Monday too.Smile

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TwittyMcTwitterson · 15/02/2014 21:41

I drink two litres of water a day at work but find it hard at the weekend. I live carbs. DP calls me the carb queen. I'll think nothing of eating 1kg of frozen chips in a sitting. Nothing fills me Hmm

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BigChocFrenzy · 15/02/2014 21:53

EevesMum You don't need telling that you must cut down on those chips and other junk carbs. Potatoes boiled or baked have far fewer calories and fill you up - you probably can't eat a kg of those
Smile
Try to concentrate on protein and veg.

All Newbies Do read our FAQs & Healthy Tips section at the bottom of the OP. That should start you off properly.

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tiggermummy70 · 15/02/2014 22:57

evening all, catching up whilst on shift. quiet night so far. 1 call & 1 cancelled as we rounded last corner Angry

I've read stuff on frame size with interest. Can't measure until home after midnight.
I have been trying. to concentrate on bf% as it's so high. 38 down from 43. But not sure where it should be?
I've lost about 4" off waist & 6 off hips but still got another 6" to loose from waist to get to healthy size Sad . Boobies are looking like deflated ballons. Used to be at best fit a 38KK now a 34JJ. Angry Angry Angry Angry
Can't seem to shift tyre between bellybutton and lady garden! I know 2 children via sunroof hasn't helped but somethings gotta give.
scale target is currently 182 back to lowest weight since trying to loose anything. Then aiming for 174/5 as I think that will take.me out of obese and into overweight.

hope everyone has had good day. on training course in London tomorrow so won't get to catch up until the evening.

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BigChocFrenzy · 16/02/2014 00:18

TiggerMum Lady garden and 2 DCs via sunroof ! Grin
Try to aim to be a healthy % bf for your age AgeFat

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tiggermummy70 · 16/02/2014 00:29

Sorry, when I was trying to have children (it took 10.5 years!!!) on the board I posted on that was what it was always refered as, didn't think about it.

Thanks for the link, according to the age-bf % I'm only over weight not obese at 38%. Grin

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TwittyMcTwitterson · 16/02/2014 08:36

I had DD via sunroof and it's done the strangest things. It's not too noticeable after one but it would be after more. When I was exercising I found lower stomach exercises were so good for it. Grin

How fast does this work? Will I see noticeable loss each week? I think I'm gonna start power walking on my dinner break. Just wish I had time for the gym Hmm

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BetsyBell · 16/02/2014 08:49

evesmummy it works differently for everybody but definitely get out there walking in lunch breaks - little changes like that do make a difference.

There's a link to an Inspiration thread in the OP where some long timers have posted up their stories - some have before and after pics I their profiles too. Go have a look!

OP posts:
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BigChocFrenzy · 16/02/2014 11:29

I'm in my break at the gym now. I did fasted spin and will shortly start my heavy lifting.
I love Sunday fasted training, because I usually have so much fuel from my cheesy nutty Saturday orgy.
Smile
btw 2 fingers up the out-dated low fat mantra from the food fascists

I enjoyed :

  • breakfast = 350g cheese fondue, wholegrain bagels, huge mixed fruit bowl, peanuts
  • lunch = big bacon, cheese & veg pizza, homemade cheesecake with almond crust, 2 bowls of strawberries & cream (yum)
  • supper = salmon, creme fraiche, feta, salad, cashews, 90% choc bar

Grin
I do love this WOL !
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DorisAllTheDay · 16/02/2014 12:21

Tigger, I have the same tyre as you in exactly the same place. Even when I was at my lowest weight back in October (5' 3" and 9 stone) it was still there. According to the wrist calculation thingy I'm large frame, so even my current weight, 10 stone, is fine. But my waist measurement is still much too big - between 33" and 34" depending on when I measure it - so I have some way to go, I think. I'm using the scales as a guide for how I'm doing, but I think a more meaningful target for me is a waist measurement of 31".

BigChoc, how do you work out percentage of body fat? The chart shows what you should be, but I don't know how to measure it.

Enjoy your training course, Tigger.

TiredEmma, how do your DS's audition go? Are we about to see him on our screens/in the West End?

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PoppyOzday13 · 16/02/2014 13:50

FD today and soooo hungry! Don't really know why as have had my usual stuff that normally sees me through. I have been thinking about the discussion re binge cycle on the other thread, and trying to be a bit more mindful, like not opening the delicious packet of chilli crisps hidden in the cupboard!
do you think a bit of carbo loading sees you through a fast day better the next day?
Can't go to bed early, as the ice dancing is on late tonight .......

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BigChocFrenzy · 16/02/2014 14:00

Doris This is in the OP of the 52ExerciseThread
BodyfatCalc
Alternatively, the gym can measure with calipers or with specialised BF machines. These methods all give slightly different values, so you can take an average.

Afterwards, when monitoring BF over the next months, you really just want to know the change, so choose only one method for monitoring.

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BigChocFrenzy · 16/02/2014 14:14

Poppy Newbies should probably avoid going low carb or eating below TDEE the day before an NFD.
However, NFD carb-loading is not necessary, unless you plan very intense fasted training. Very active exercisers may do better with high complex carb NFDs (I do).

Treats on NFDs are fine, but avoid binging, especially on junk.
Keep an eye on calories, to ensure you maintain the weekly deficit from your FDs.

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PoppyOzday13 · 16/02/2014 14:29

Thanks Big Choc, have been going a year and only recently been caught out with desire to binge, real pain. So mentally looking at starting again, to try and shift the next bit. I haven't been very scientific, just fasting 2 days and it has worked well, but the last bit is harder! I really want to make sure I don't slip into bad habits and blame it all on a plateau.
Thanks for your interest

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KateBeckett · 16/02/2014 18:49

Well I've read most of the tips thread - some really interesting stuff on there! As we are planning on TTC later this year the research on lowered fertility freaks me out a bit! Will have to look ino that a bit more I think.

So, first fast day tomorrow, am planning on a spinach and one egg omelette for breakfast, then watered down soup for lunch. Not sure about dinner yet.... I'd like to try a longer fast at some point, but want to ease myself into it!

Eves are you starting tomorrow aswell?

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