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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 26 - Bring on the Lifestyle Change Victories!

982 replies

BetsyBell · 24/08/2013 11:15

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:
ceebeegeebies · 29/08/2013 13:53

Hola from Spain Smile 5 days into my holiday and having a good time.

However did have a massive wake up call on the first day when i put my swimming cossy on and realised that i looked fat and horrible Sad i hadnt realised i looked that bad at home as i can conceal a lot in my clothes and actually look ok a lot of the time.

anyway the upshot is that i think this is the impetus i need to do this diet properly when i get home. i plan to follow talkinpeace's plan to the letter and shift a stone bt christmas and another stone by my 40th (gulp) in April. anything more will be a bonus Grin

JB30 · 29/08/2013 15:57

Halfway through my FD here, broke my fast about 40 mins ago. Meant to be having lovely day off with kids but dh had to go to work and kids are being witchy, can't be doing with them. Seriously tempted to hide away and have a wee nap til dinner time as v tired. On the plus side, met someone I haven't seen in a couple of years and she said I looked like I'd lost loads of weight, and I looked toned! Nearly asked her to repeat it so I could tape/replay in times of weakness Grin
It's right about here I usually regress, never make it under the 11.7/8 stone. No more!
I cannot imagine ever being 8 stone anything NotAsTired - You've done brilliant! I can't wait to have a normal bmi, one of dreams, about 17 pounds to go. Be a lovely Xmas present to myself

Dotty342kids · 29/08/2013 16:41

Well done notastired, that's brilliant Grin

Fasted on Sat and Tues this week. Could really do with bunging another one in before Monday but am away to Harry Potter studios tomorrow so that's hotel etc. Might try a mini fast and just have hotel dinner in the evening....

HellesBellesThinksSometimes · 29/08/2013 16:55

TOTM here and the munchies have started. I cannot believe how many calories are in cheesecake! Still, I will allow myself to go over tdee today as I have full body pms right now and cakes are the only cure!

Hairy exercising on a fd morning is good. Exercising the morning after a fd is, for me, very tiring.

Toofattooold · 29/08/2013 17:09

I agree with you hellesbelles. I fasted yesterday and today I ran 5k in the gym. Absolutely shattered all afternoon. Already looking forward to bedtime.

Talkinpeace · 29/08/2013 18:18

The science of BMI

Yes, I've seen the Jacques Peretti thing and he is rather disingenuous on a couple of issues

  • the "Minnesota Experiment" that proves starvation mode does nothing of the sort : if you keep people under a football stadium for six months and treat them like prisoners, you are not replicating natural calorie restriction
  • the "Man from MetLife" declaring that half of all people were above average weight : well, no shit sherlock, statistically they ARE

BUT
What has changed since then is that average weights have climbed and climbed.
More and more people are now at the upper upper ends of the weight scale that the Met life man was working with.

A raised BMI in itself is not unhealthy (up to around 29) as some people are naturally heavy.
But those people should be around 1 in 20 of the population, not 1 in 3
A raised BMI is an indicator of later chronic health problems
hence why skinny people do tend to live longer.

The guidance that all Asian people should aim for a BMI of under 23 is based on rock solid recent epidemiological research.
Ignore it at the peril of your health when you get older.

I've just spent 2 weeks in France.
Not all French people are skinny (we were staying in a lovely but very working class campsite)
BUT
Far far more English people are grossly overweight - it really struck all of us comparing UK and French Motorway services
and the French are not all covered in tattoos, but that's just my bugbear

Talkinpeace · 29/08/2013 18:23

Hairy
I'm still in one of my four "stuff it weeks" but the next six weeks will be "fast strictly" weeks - and I go to the gym for a couple of hours every morning before eating and twice a week while at the tail end of a fast. You'll be fine.
And exercise on an empty stomach rips through visceral fat at a rate of knots.

Target is 8st 7 by 18th September. Tough but achievable. No idea what I weigh at the moment though!

eatriskier · 29/08/2013 19:40

somebody please slap me and tell me I don't need wine and cake please?

spudmasher · 29/08/2013 20:06

You don't need wine and cake! make sure you're not watching Masterchef!!!

Tell me ladies....I started- today was my second go, but I just can't do without something first thing. Today I had half a grapefruit and a boiled egg. A little tuna and a spoonful of three bean salad on a green salad at lunchtime and a small bowl of lentils and veg cooked with curry spices and half a tin on tomatoes.
I'm not doing it right till I can skip breakfast am I?

TrucksAndDinosaurs · 29/08/2013 20:48

notastired fantastic work on reaching goal!
And it IS work so be damn proud. :)

DS is fine after his accident and so far has not noticed the stitches... We have hidden all mirrors!

Nearly finished Shred l3 but going to keep going another week til it's easy then start 6 week 6 pack as the tum remains wobbly...

Not fasted this week but can probay squeeze one in tomorrow and been eating low carb and low cal - lots of green veg, chicken, shrimp...dropped 2lb after stall of nearly 3 weeks yay!

JB30 · 29/08/2013 20:52

No cake or wine Eat - nearly at the weekend, save yourself for something nice then.
Finishing my fast at about 580, I'm happy enough with that. WI tomorrow, hoping for a drop. Will do a 16:8 as I've found once I eat brekkie, I'm starved all morning! Think I'll save myself for a lovely sambo for lunch, yummy, sweet dreams

HellesBellesThinksSometimes · 29/08/2013 21:10

spudmasher MM has breakfast and dinner. The fast element of 5:2 is the dramatically reduced calories. Some people like to include a long no-solids fast and this is when you will hear about 16:8. If I am at home, I do 16:8. If I am at work, I have a boiled egg for breakfast. You need to find the way that suits you. Becaise i usually fast on weekdays, I usually have 3 meals on fd's and I have still lost weight.

Talkinpeace · 29/08/2013 21:54

spudmasher
my yoga teacher skips supper - as that fits with her teaching schedule - so she has breakfast, then liquid lunch then no supper then breakfast

you have to do what works for you

EatRiskier
YOU DO NOT NEED CAKE OR WINE

spudmasher · 29/08/2013 21:56

Thank you ladies. Good to know my first two fast days this week were not wasted! Whilst MN has been temperamental this evening, I went off and did some research...should have done that before I started really!

eatriskier · 29/08/2013 22:06

Thanks for the slaps
Turns out it was a good thing. Have felt ill since about 5 mins after posting, first with cold symptoms then my tummy turned whilst I was having lemsip. Seems ds has gone for the getting over a virus by giving it to someone else method
Probably explains why I've gone downhill while he perked up no end this evening
NSd tomorrow Grin

thinkcan · 29/08/2013 23:52

Ugh! Despite 1 fast day, 3 weights sessions at the gym, two hiking sessions of 6 km across hilly terrain and 2 bike rides of 14 km up and down hilly roads in the last week, I am still not able to shift any of my holiday weight gain. The weight comes right back the minute I have a normal eating day. Somebody tell me what I am doing wrong!

hopefulgum · 30/08/2013 00:23

Ugh! I didn't manage my second fast day this week (Thursday) because my DS is sick, and I was feeling so tired and poorly on Wednesday that I decided I'd skip the fast on Thursday and catch up on Saturday (I have to go out to dinner for a friend's birthday tonight). So I spent fast day on the couch with DS. I also missed my swim on Weds night, which feels weird.

I have to say I have really missed the fast day and just don't feel "right" today. And have eaten a far too large breakfast. So I will be having soup only for lunch, then wait for the dinner. It is at a french restuarant, so I'll try my damnedest not to eat a dessert.

I am really glad I missed (not that I skipped it, that I missed it) the fast day - I think that bodes well for it being a long term thing. I do love that I don't have to beat myself up, rather just know that I can fast on a different day.Grin

hopefulgum · 30/08/2013 00:24

Oh my goodness, thinkcan, I crossed post, I promise I didn't copy your "ugh!" Smile

thinkcan · 30/08/2013 01:07

hopeful Only too happy someone else is feeling the same way I do!

To fast or not to fast today? I have a hiking session at 3pm and am concerned I may bonk out if I do not have enough to eat as that happened to me on Monday's hike. Made the mistake on Monday of having a carb heavy vegetarian (sweet potatoes and roasted peppers) sandwich for lunch and sugar levels plummeted during the hike. Got all weak and wobbly. I think I have to shift fasting days to Tuedays and Thursdays if I want to continue with my sessions with the hiking group on Mondays and Fridays. Problem is Tuesdays and Thursdays are my cycling days. How do those of you who exercise quite a bit fit in your fast days with your exercise routines?

MissStrawberry · 30/08/2013 07:26

Just saying hello as I have been rubbish at keeping up and posting.

Trying to have a FD today.

Claricemis · 30/08/2013 08:25

I need some backup today. It's a fast day and I'm feeling really pressured, which is launching a lot of hungerfeelings and just plain "I want food"-feelings. Someone tell me I can do it, please.

spudmasher · 30/08/2013 08:28

You CAN do it though......
Get busy and the day will fly. Good luck and hang on in there...think about how rubbish you'll feel about it if you cave in.....that's a worse feeling than being a bit hungry.

Claricemis · 30/08/2013 08:29

Yes, spudmaster. You're right. Thanks. I'll do something.

spudmasher · 30/08/2013 08:30

That's the spirit! Let us know how your day goes.

eatriskier · 30/08/2013 09:08

well the truck well and truly hit me last night. 2 ill/recovering dcs with no planned outlet today and tbh, I don't feel like going out. thankfully not a fast day for me. shall me using calories on lemsip instead (not that there's a consensus on that so I'm going for g of sugar per sachet and counting that). decided to have cake for brekkie Blush but now I don't want my actual brekkie so looks like I've done a straight calorie swap. I'm ill I suppose, I can do these things Wink

good luck all fasters today