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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 20! Officially a score.

971 replies

GreenEggsAndNichts · 20/05/2013 08:27

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:
Dotty342kids · 21/05/2013 14:02

MummyPigsFatTummy, yes, it does get easier. My stomach still rumbles and growls all through each and every fast day but you just, sort of, learn to accommodate it! And when you step on the scales and see each small loss, it helps to keep you focussed!
My BMI was about 29 when I started this (mid Feb), not quite sure what it is now but still not in the healthy range though will hopefully get there at some point soon.
You will get used to not eating, I promise you! I used to cave at about 2pm and eat a banana / egg too but now I go happily (ignoring the growling tummy) until around 6pm usually.

ELR · 21/05/2013 14:07

Well I've just had my bigger lunch of wholewheat pasta, tuna, broccoli cherry tomatoes and fiery chilli pesto followed by a cup of tea and half a chocolate and pear scone. I'm stuffed, it all came in at 525 calories. So i managed a 5 hour window this morning with no snack just a glass of water. I have paella and the other half of the scone planned for dinner which comes in at 600 calories so that leaves me 250 calories below my tdee. Maybe I will have yogurt and fruit as pudding.
Fingers crossed for the no snacking danger zone at 4pm!

BsshBossh · 21/05/2013 14:27

meandmyfour yep it's new to me.

ponygirlcurtis · 21/05/2013 14:30

meandmyfour I've only just decided today to make a determined effort not to snack, so I am hoping that it will help with weight loss. TBH, I probably wasn't snacking much anyway, but with the thought that having 5hrs clear without eating helps burn fat, I'm being more careful about it. Although, the rice pudding that I'd planned for lunch afters got turned into a whole Milky Bar cow (Easter leftovers)...Blush am hoping that within the next 5hrs it'll burn off!!!!!! seems unlikely

spababe I am trying to just generally eat healthily and more consciously on my NFDs, keeping a vague track of calories etc to make sure I'm not going mad. But if I want a glass of wine in the evenings, I have it, and I don't feel guilty because I know I'm doing well on the FDs.

MummyPigsFatTummy · 21/05/2013 14:37

Many thanks Dotty342kids. I am very glad to hear that. I am definitely struggling today!

ELR, I am a bit confused. I thought we didn't have to worry about calories on the NFDs. I have only read the book though - have they found it is better to calorie count every day?

frenchfancy · 21/05/2013 14:59

You don't need to calorie count on NFDs. Just eat normallt. However if you find after a few weeks you are not losing weight then our advice is to count (not restrict . just count) on NFDs for a bit just to make sure that our definition of normal really is normal. After all most if us didn't get overweught by eating 2000 cals/day did we?

MummyPigsFatTummy · 21/05/2013 15:10

You are right frenchfancy. If 190 cals (consumption so far today) is anything to go by, I doubt I have EVER stuck to 2000 cals/day!

awomanchanging · 21/05/2013 16:06

Hello everyone. Just checkin in. I'm on day 4 ha my first nfd yday and happy to report I'm down 3.8 lbs in 3 days! I'm very excited to see the progress to come and I'm loving how the 5:2 has gotten the scales to move faster than I've seen in a while. My first goal is 11.8 lbs away and if I love my body image then I'll be at goal. My main goal is to lose body fat at least 8% which equates to 15 lbs so next week I will be checking my body fat again. I'm really ecstatic and hope everyone is having a great day!

ELR · 21/05/2013 16:16

mummy you don't need to calorie count don't worry! I am just doing it for the purpose of today as am not snacking so made my meals bigger. I was eating way too many snacks and my meals were smaller.

BetsyBell · 21/05/2013 16:19

Hello! Snack danger zone! I am really hungry - fast day yesterday and complete failure to make my meals bigger than usual. However, it is habitual hunger and I will of course survive till 6pm Smile.

ELR · 21/05/2013 16:32

Hi fellow snack avoiders. I've just had cup of tea with milk tell me that doesn't count as a snack!
We can do it betsy
Luckily I'm not actually hungry the bigger meal thing has def worked for me. And I'm making paella for tea I won't be tasting it as I'm making it, its just not one of those type of recipes thank goodness.
Just going to drop the kids to their yoga class then will start the paella and finish it when I've picked them up. DH is playing football tonight so I will eat early with the kids at 6pm and then will be ok aye just a cup of tea at around 9pm

Moominlandmidwinter · 21/05/2013 16:33

MUST...NOT...SNACK!

postmanpatscat · 21/05/2013 16:35

Tea is definitely not a snack, ELR!

Ok, so although I had a biscuit or two at morning break I've now had nothing since eating my lunch at 12. Trouble is, what am I supposed to do with the >1000 calories I have left for dinner?!!

BetsyBell · 21/05/2013 16:39

I was making a sandwich packed lunch earlier and was about to pop a bit of ham in my mouth, remembered NO SNACKING and popped it back in the packet instead!

If tea counts as a snack then I'm in big trouble ELR...

We can do this!

I'm really not looking forward to going in the kitchen, but I am mentally creating an epic pasta, prawn and avocado dish right now - argh too early! [salivates].

swallowedAfly · 21/05/2013 16:47

see this is why i can't be in the no snacking club. i just ate about 100cals worth of smoked salmon rather than wait for dinner. however it is the first thing i've eaten today so essentially that was my breakfast. my lunch will be my dinner and tea will be whatever other little thing i nibble on before bedtime. so are they snacks or are they meals iyswim?

sod it i'll make dinner now and then my smoked salmon will have been a starter and my dinner the main course Grin

CockBollocks · 21/05/2013 17:11

HELP ME!!!

First fast day and I'm seriously struggling, feel a bit wobbly & faint.

Its dinner time and I may cave Sad

dines · 21/05/2013 17:20

Hey guys I really need some motivation.. I had a week were I didnt do anyfasts as my auntie was down to visit .. im finding it so hard to get bk on track I had two fasts last week was over both days about 700-800.. I dont know y im finding it so hard. I havnt had one this week yet had my last fast Wednesday last week.. wud love some motivation and advice

swallowedAfly · 21/05/2013 17:38

have you had your 500cals yet CB?

dines - no good advice - just had a couple of weeks off myself. i'd say if you can't manage fasting (and i just couldn't for a while for some reason) then just try and be mindful what you eat and aim for some low cal days. you did two good low cal days last week despite not sticking to 500.

also do some mini fasts if you can - re: not eating all day but not restricting cals when you do eat.

doesn't have to be all or nothing.

had the last of my casserole this evening but as not a fast day i had it with a good mound of mash and i am stuffed Grin might squeeze something sweet in as a treat before bed though.

Moominlandmidwinter · 21/05/2013 17:38

By the way, that wasn't aimed at ELR!

I'm with you, postmanpatscat- I have managed to be good, and stick to meals, but now have 900kcal left for dinner. I was planning on having a jacket potato with beans, but may have a muller corner to add a few calories. I know it's different as I've just begun recently, but I don't want to go too low on NFDs.

Rolf · 21/05/2013 17:40

I've been lurking for a bit and thought I'd take the plunge and join in!
I've tried this last year and found myself really exhausted, and it just didn't seem to agree with me, so I left it. I've started again and have done 5 fast days and found them much easier.

I haven't weighed myself at all as I have a tendency, when I see scary figures, to plunge into the depths of despair and comfort eat Blush. But I'm feeling pretty good. I may take the plunge after my second fast day this week.

My main problem with eating is that I comfort eat and have sugar cravings. They haven't disappeared, although I'm managing them fine on my fast days. On my non-fast days I'm doing my usual piggy munching. But I hope that doing piggy munching 5 days out of 7, rather than 7, will do me good. I'm focusing solely on the fast days as I think that is the strategy most likely to suit my screwed-up relationship with food and body image.

In the book, MM and MS seem to end up with a lovely, effortlessly moderate approach to eating, even on non-fast days. That certainly isn't happening with me at this early stage. Is anyone else having the same experience and still losing weight?

dines · 21/05/2013 17:57

Thanks swallowedafly will do some mini fasts then will ween myself into just having the 500 cals.. I need some new ideas on wot to eat on fast days.. anyone got any.. I like to have something about 1 then something about 5-6 I find it hard to leave the whole 500 cals till later on

CockBollocks · 21/05/2013 18:12

Phew - I can introduce myself now, I have just eaten a tin of tuna and a boiled egg so feel a bit better now!!!

I have been lurking for a while and thought I would take the plunge today.

I had porridge, made with water at about one as I know I could not manage all day.

Prawntoast · 21/05/2013 18:15

dines I have become a big fan of the Hairy Dieters cookbook, loads of meals under 500 cals and very tasty, they focus on using lots of herbs and spices to give the food flavour. I quite often use it as a family cookbook as well now (when I can tear myself away from Nigel Slater, definately not a low cal option!). There is also a recipe thread linked in the OP as well.

dines · 21/05/2013 18:27

Thanks prawntoast gonna start on a mini fast tomorro and c if that will help me get bk into it. Is anyone fasting tomorro?

Dotty342kids · 21/05/2013 19:11

dines, I've got a couple of favourites from the BBC Good Food website, this is one so search for it there: Harissa chicken traybake.
Also try googling "Nigella, butternut squash and lentil thai curry" or words to that effect - that's gorgeous too. Also really like (for a good basics dinner), two quorn sausages - only 70 cals each, on a piece of toast with half a tin of baked beans. Yum!
Or the curry which I wrote up just on the end of Thread no. 19 Smile