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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.

5:2 Diet Thread: Part Four! Sit down, have a cuppa..

983 replies

GreenEggsAndNichts · 20/09/2012 22:36

The continuing thread for those of us following either the 5:2 diet or the alternate-day fasting diet. Both are two versions of Intermittent Fasting, which you can read more about here.

The 5:2 diet was featured on Horizon recently, and essentially requires you to fast for 2 non-consecutive days per week. The other 5 days, you can eat what you like. 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, on those days.

Here is a list of the links we've gathered so far about this diet. I hope I haven't left many out, but it was a 40 page thread! This is a good start for anyone, though:

First things first, here is a link to our previous thread, which we've outgrown. Lots of good support and ideas still to be found there. Here is the thread before that..

Here is the link to the BBC article regarding Michael Mosley's findings, which was featured on Horizon.

is a link to the first part of the aforementioned Horizon, subsequent parts of that episode are linked on that page.

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.

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%).")

Important link 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.

And for those already fasting, here is a link to 100 snacks under 100 calories. :)

Another food link, here is a link to the BBC Goof Food site, with a list of low-calorie soups.

We often mention basal metabolic rate (BMR) here. This refers to the amount of energy (calories) a person uses when at rest; so, the basic number of calories a person needs to stay the same weight. This number is often quoted as being 2000 calories for the "average" woman, but of course is different depending on how tall you are, how much you weigh, etc. Here is a calculator which will easily help you to find out what your BMR is.

A BIG THANK YOU to all who have been contributing, btw. Most of us are new to this diet. All of the links above have been posted by others in our previous thread, 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 them all in one post this afternoon. wink

Come join us, and tell us about your experiences with this diet!

OP posts:
GreenEggsAndNichts · 25/09/2012 15:22

Lapsed I'm doing close to ADF, 4:3. I would ADF but that leaves me with every other Sunday being a fast day, and I felt that would be too disruptive to my family life. :) So, basically, I ADF until Sunday, when I have an eating day both Sun and Mon, then go back to alternating days.

I... don't stick to the maintenance calories on my eating days. I don't count calories on those days, period. However, knowing what your maintenance calories are for a day can be very helpful for people who might have excessive eating habits, say (my favourite example) the people you see on Secret Eaters who don't realise they're consuming 7000 calories a day. :)

Conversely, and this is just as important, you do NOT want to be trying to low-calorie diet on your eating days. Some people will say this when they start off, like oh, if fasting for a couple of days is good, then eating low cal on the other days must make me lose weight faster! And I really don't think that is the case. Your body needs the rest, and the calories, on your eating days.

No need at all to have breakfast, in fact, you'll notice many of us don't.

Good luck!

OP posts:
RightBuggerforGOLD · 25/09/2012 15:33

Mistlethrush - if it feels ok then why not go for it? If on the third fast day you think its too much, then just turn it into an eating day. I do 4:3 and am doing really well on it, I had 3 stone(ish) to lose ideally when I started, now I'm half way there at week 8! When you have lots to lose I think its better to just chuck yourself into it and get going tbh. Hopefully the results will keep you going, they have definately motivated me. Good luck.

frenchfancy · 25/09/2012 15:33

Lapsed - I think you need to try and have close to your maintenance level of calories on non-fast days, especially if you are doing ADF.

The reason the diet is easy to stick to is that on non fast days you don't have to think like a dieter.

mommybunny · 25/09/2012 15:35

To second what greeneggs just said (as if she needed any additional support from me - she says it all so well the first time... Smile), if you look at the Telegraph article mentioned in the OP, the studies that Krista Varady did showed that people with high-fat diets (which I take to include high-calorie - ain't no way a high-fat day with burgers and fries is in any way low-calorie!) lost no less weight than people who ate low-fat/low-calorie diets, and in fact some lost more. So there appears to be no reason at all to go below your maintenance calories on non-fast days, and if you're not a "Secret Eater", I wouldn't even worry about staying within maintenance calories. It will all balance itself out.

GreenEggsAndNichts · 25/09/2012 15:37

Tis a fast day here. My cold seems to finally be breaking.. I suspect it had turned into a chest infection Hmm as it's lasted almost two weeks now, and the last few days have been the toughest. I've never had it this bad before!

Anyway, cup of coffee in hand, have walked DS to preschool for a couple of hours so am posting here. I see the thread in AIBU but there are so many questions being asked which are answered in this thread Grin that I'm not sure I can be bothered to answer them all! Especially the very basic ones about fast days. Honestly, you won't know how you react to them unless you just give it a go and try them!

(er, try two at least, as the first couple are tough- I don't think you can judge whether or not you can keep up this WOE just be doing one fast day)

Hope other fasters are doing well out there.

OP posts:
GreenEggsAndNichts · 25/09/2012 15:45

mommy hah I always appreciate support! I never know if what I'm saying only makes sense when I'm saying it in my head, or if it translates at all when I actually type it.

It should be interesting if we get more people doing this. We really are a bit of an experiment here. :)

OP posts:
LizLemon007 · 25/09/2012 15:46

sorry for coming along at the eleventh hour with questions. I know on 30ds thread I was a bit :-)) when people came along after 12 pages and said, sooooo, 30 day shred, how long does it last then ? :-p

TellMeLater · 25/09/2012 15:51

Nenufar it does sound like you are literally running out of energy - in the form of glycogen, especially given your activity levels. Your body may become more efficient at converting fat to energy but at the moment it's taking longer than it should and therefore you feel zonked. I do a lot of exercise and low carb and have found my body now copes quite easily with fat burning but the first time I went into ketosis was just as you suggested.

GreenEggsAndNichts · 25/09/2012 15:54

lol sorry Liz I wasn't actually referring to your questions as much as I was those being posed in the other thread. I think we're all pretty friendly here and are happy to answer questions when they pop up.

I just meant, I see loads of questions in that AIBU thread, but there are so many and about half of them are the very skeptical sort that I'm not sure I can be bothered answering. Grin I think having a look at the articles in the OP gives a good overview of the diet, for starters. I don't think I have the energy to go tell skeptical people that they really, really should just give it a try. :)

And LOL at your example. I know exactly what you mean.

OP posts:
mommybunny · 25/09/2012 16:05

Liz, don't worry about questions - we're all here to help each other. Smile I can say 12 days after having started 5:2 (with 4 fast days in that period), I definitely feel a difference, and I am in the "normal" BMI range for my height, though at the upper end and I'd prefer to be in the middle or closer to the bottom. My skin looks better, my eyes are clearer, and I think I'm sleeping better. And I think clothes are starting to feel a tiny bit looser. I think people with more weight to lose are getting even more dramatic initial rewards.

I don't like fasting, but I can cope with it - yesterday (a fast day) I went to lunch with a friend at a restaurant and if I hadn't told her what I was doing she need never have known. The thing about this plan that has me sold is that all I need to do to enjoy my food and beverage Wink 5 days a week is eat 500 calories or less 2 days a week. Those 2 days can be whatever non-consecutive days suit me. Life can go on and I don't have to feel deprived (though I do make it tough on myself with my addiction to Food Network apres dinner Wink).

I was reading the AIBU thread as well and, like greeneggs thinking "oh come on, just give it a go!" I too would welcome new joiners who got curious as a result of that thread.

mommybunny · 25/09/2012 16:10

I just realised - I didn't have any Diet Coke yesterday! Woohoo! And I didn't even miss it. Had loads of water, and a tiny square of dark choccy, but I can't believe I forgot all about Diet Coke. A first for me.

TalkinPeace2 · 25/09/2012 16:13

mommy
Its working - you are training your brain !

mommybunny · 25/09/2012 16:17

Talkin, that post was aimed at you Wink!

catsrus · 25/09/2012 16:18

we are an experiment Grin and I'm certainly willing to try new approaches - like low carb. the main thing for me is sustainability long term - I've looked at low carb today but tbh, having looked at the list of what you can and can't eat, it really is not for me - no matter how good it might be for weight loss Blush.

I find this approach flexible and so guilt free Wink

Thelittlestranger · 25/09/2012 17:40

I have just resisted a McDonald's...and I chose a salad for lunch. On a feed day. Something is up....

tedmundo · 25/09/2012 18:34

Marking my place for in about a years time. I am currently 17 weeks pregnant so of course not looking to diet right now but I know I want to shift this baby weight once and for all when the time is right.

This looks like the diet for me and I am looking forward to it, in a way I NEVER have with other diets. I am not good at eliminating food groups (be it carbs or fat) so this really appeals to me, because even on the fast days you can have a little bit of everything.

See you in about a year!

BelinaTheChicken · 25/09/2012 18:44

Laska I know I should, I've got a fast day tomorrow and going to try it black, I have instant, but that Millibean one that tastes a bit less gross black than normal instant. Can't afford real coffee at home. I blame my friend, she got me hooked to coffee mate, used to have it with a tiny splash of skimmed milk, so shouldn't be too hard to get back to that.

Eating day today and having roast chicken for dinner, but mashed potato instead of roasties (DH prefers it, and can't be bothered to make them just for me, and mash keeps better so the DC can have it for lunch), and LOADS of gravy. Will try not to over do it as we are eating late and haven't been coping well with big meals since starting this WOE

Laska42 · 25/09/2012 18:49

Grrrr... hungry....... Sad
There's chocolate in my desk drawer... help !!

LookBehindYou · 25/09/2012 18:51

Get up and move. Have a big glass of water and remember you can have it tomorrow.

Laska42 · 25/09/2012 19:06

size 10 jeans... size 10 jeans.....size 10 jeans....
making some mint tea.....

TalkinPeace2 · 25/09/2012 19:09

Tidy your wardrobe. Something, anything active to distract you
You know that drawer in the spare room full of tat - tidy it ...

I have so far sorted wardrobes, hoovered, turned mattresses, mopped floors, all in the cause of NOT being hungry :-)

Laska42 · 25/09/2012 19:14

Actually that's a great idea LBY and TIP" ill go and put my summer clothes away and get the winter ones out .. (and see what's too big for me now!) . I can get up early and carry on working tomorrow .

thanks both.. I Can do this .. Thanks

pookey · 25/09/2012 19:16

I love this thread the diet seems to attract people for a range of reasons so its a real eclectic mix of people on here.

I know what you mean the little stranger I made oreo cookie cupcakes today and I was quite restrained with taste testing!

feed day, well aborted fast but anyway, keep seeing mfp mentioned so filled it in and had q low cals under 1500 (bit too high in fat though app). Going to try detailed cal counting for fast tomorrow.

Did a weigh in 12. 7, which was higher than I expected.

Laska42 step away from the chocolate! (don't end up like me with aborted fast)

pookey · 25/09/2012 19:18

That's funny talkin looks like fasting might also be good for general domestic wellbeing aswell cos we are all tidying up to distract ourselves! Also fasting is making me sleepy whixch is good as I have been staying ip late watching tv.

GirlWithTheMouseyHair · 25/09/2012 20:06

God you disappear for a few days and the thread more than doubles in size! Friends arrived Saturday so 3feed days filled to the brim with prosecco, about time I fasted, which is today.

Kind of weird comforting feeling being a bit hungry!! First feed day got too full again but better the next two.

Unfortunately I got a care package from UK yesterday full of M&S chocolate! It'll have to be my reward tomorrow

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