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 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. 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.
Michael Mosley has recently unveiled a new 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- we won't bite. Well, maybe on a fast day. 
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 etc!
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!
Here is the link to the BBC article regarding Michael Mosley's findings, which was featured on Horizon.
B&W has found a new link to the aforementioned Horizon programme here. If you're keen to see it, watch it soon, because BBC has been quick to find these copies and shut them down online. We're hoping they'll re-play it again soon. I know these threads are popular, maybe they'll read my request.
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. We tend to favour lots of hot drinks during the day (count your milk if you use it!)
Another food link, here is a link to the BBC Good Food site, with a list of low-calorie soups.
We mentioned BMR and TDEE often. Total Daily Energy Expenditure (TDEE) 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. (This is a new calculator to previous threads, this one seems to give me approximately the same results the last one did, but without the virus warnings on my browser!)
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!
Mumsnet hasn't checked the qualifications of anyone posting here. You may wish to speak to a medical professional before starting any diet.
MNHQ have commented on this thread
Fasting / 5:2 diet
5:2 Diet Thread! Perfect number 10!
GreenEggsAndNichts · 20/01/2013 15:24
I started with a general low carb/low sugar plan in October. Lost 10lbs in just a few weeks, and then promptly gained 3 right back. That's when I stumbled onto an online group of women who had decided to switch from low carb eating to this crazy thing called JUDDD :) It's based on the book, The Alternate-Day Diet, by Dr. James Johnson, and follows an every other day rotation of 'Up' days and then 'Down' Days. Very similar to the 5:2 plan, except more fasting days and also on fasting days you actually eat less than 500 calories after a while, based on your weight. On my fasting days I currently eat between 350-600 calories. My normal days I don't really keep track, but I aim for 1,700-2,000 calories on those days. The 5:2 plan was brought up on the JUDDD forum and there's several of us interested in it for maintenance. I love doing JUDDD, but it would be great to not have as many fasting days 
I'm currently doing a two week experiment with 5:2, to see if A. I continue to lose weight, even though I'm cutting back on fasting days and B. to see if I stop losing, but maintain at my current weight (144lbs).
End of second week of 4:3 and have lost another 4lb - 8lb total! Not sure I can keep with 4:3 long term - may have to drop to 5:2 eventually - but this is a great start and is keeping me motivated 
.
morning all - yay I've found you. Greeneggs thank you 
. Snowkey hope you feel better soon. Well having a cheeky day at home due to not being able to get out of the village so no doubt will be lurking on here a lot of the time. Thanks for the link B&W makes interesting reading. Off to investigate JUDD ...
Hello sausages51. Sorry I can't answer your questions as I've only just started this myself. I'm sure someone will be along soon who can.
Thanks everyone - going to make myself huge vat of medicinal chicken soup & hope that does the trick
sausages the aim is to eat no more than 500/600 calories in a 36 hour period, so basically if you eat your main meal on Monday night at 7pm do not have more than 500 calories until Wednesday morning which you should then treat as a normal day.
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Cross-posted with literarygeek!
Also am rejoicing as I seem to have all the keys on my keyboard back! (Slight incident with spillage from a hot water bottle last week, been having to use the on-screen keyboard for a while 
)
after8s how about making a nice chinese-y inspired chicken soup? perhaps chicken noodle soup using strips of red pepper and courgette and mushrooms, brocolli or spinach/pakchoi leaves shredded and lots of energising ginger star anise (and chilli!) lime/lemon and fresh coriander leaves?. ( adding the noodles at the end or not as you like..) I'm just boiling up my weekend chicken carcass and that's what im intending to make for tomorrows fast ..
sausages yes around 36hours total fast period is about ideal.. Ideally you should be aiming for 16hrs without eating anything at all, but dont fret about that yet, just ease yourself into that gradually .. this is not meant to be torture and as you go on you'll find you can go longer without feeling hungry
Good luck.. Keep posting. lots of helpful people here...
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