As promised, I’d like to share how my 24 hour fast went last Sunday.
If you’re familiar with this blog you’ll know I like to give very honest, down-to-earth accounts of my experiences. I’m definitely not one of those fitness professionals who likes to make out they never see food as anything other than fuel for fitness training and that they’ve loved every minute of every exercise they’ve ever done. I live in the real world with everyone else and this is my “real world” account of dipping a toe into intermittent fasting…
If you read Monday’s post on my thoughts on intermittent fasting you’ll get an idea of how I’ve been mulling over the concept for a while. Somewhat on a whim (and nothing to do with the fact that I had arrangements to go out with some friends for pizza on Monday night) I decided to give it a try for myself last Sunday.
I took the 24 hour thing quite literally and, after noting the time I finished dinner on Saturday night, I set myself the target going without food until that time on Sunday night.
I should say that I took this on more as an experiment just to see how I’d cope with a day’s fasting, rather than expecting any immediate effects. I know myself well enough to predict that, if I decide this is something I want to do regularly, I’ll find the psychological aspect of missing meals more difficult than coping with any physical hunger. Although it’s tricky to separate those two aspects, it did seem to play out that way on Sunday.
I’d mentioned to my partner that I’d better have a big dinner on the Saturday night because I didn’t want to deal with too much hunger the first time I tried fasting. The word “curry” ejected from his mouth even before his eyes realised it was time to light up. So, it was at the Balti House Tandoori that I fuelled up in preparation for my fast. I didn’t make it an all-out gorge-fest, but I did eat my fill on Saag Aloo (potato and spinach) balti and a side of tarka dal, with a scoop of mushroom rice, half a naan and a bit of token salad. Low carb it was not. It was yummy though, and when I laid my napkin down at 8.35pm I felt I could happy go through the rest of my life without ever needing to eat again.
(Now, I love it when people leave comments, in fact, it fair makes my day. But if you’re thinking of posting something about how that is not the ideal meal to have before a fast, I would like to pre-empt that comment by pointing out that I am not an idiot and I do realise that!)
Fortunately, I didn’t suffer any ill effects the next morning and took advantage of an additional excuse for a Sunday lie-in while missing breakfast.
I know lots of people exercise as normal when fasting and don’t have any problems with it, but I wanted to make things as easy on myself as possible on this first attempt, so I put Sunday aside as a rest day. When I finally parted company with my bed, after a breakfast of a cup of green tea, I spent the middle part of the day wandering through the countryside around lovely Cerne Abbas. I
think we covered about five miles in all, but as I spent the rest of the day almost totally sedentary I’d chalk it up as a very low activity day by my standards.
I drank gallons of water throughout the day, partly because taking in lots of fluids helps keep hunger at bay and partly because it was really hot, which probably also played a part in stopping me feeling hungry.
I can report that I didn’t really feel hungry at all during the day.
Surprisingly, if it hadn’t been on my mind that I was fasting, I don’t think the day would have seemed any different from normal.
Writing this now has got me thinking- even though I wasn’t actually hungry, I know that if I wasn’t fasting I would still have had breakfast and we would almost certainly have stopped for lunch at one of the cute teashops or characterful pubs we passed on our walk. Interesting.
Back at the house I kept myself busy catching up on work admin, but by about 6pm I’d had enough of that. That’s when I started getting a bit restless. I tried to get my partner to go out for another walk with me, but he’d just got back from an hour’s hockey training and could not be shifted from the sofa.
Looking back, I think I should’ve just gone out for a walk or even a jog on my own. That would’ve been enough to take my mind off things for a while and probably would have stopped me feeling hungry (ever noticed how exercise does that? There are reasons for that, but that’s for another post). As it happened I sat watching TV, trying to ignore my partner tucking into dinner and the rumblings that had started to emit from my tummy.
Fortunately I only had a couple of hours to go. I can be quite stubborn at times and when I set myself a task I like to complete it. Even if the hunger had been much worse I’m pretty sure I would’ve seen it through. (Whether or not it would have been worth it or not just to reach an arbitrary 24 hour time goal is debatable, but I do think there’s something to be said for letting your subconscious know you’re not a quitter.
)
Actually, the hunger wasn’t really that bad, I was definitely not the hungriest I’ve ever felt. I did find myself getting quite tense during those last two hours, but like I said, I suspect if I’d got myself to do something active I would’ve handled it a lot better.
At just after 8pm I calculated that if I started cooking my dinner it would be ready for just about 8.35pm – so the oven went on!
I have a bad habit (which I’m trying to work on!) of reaching for a glass of wine when I get tense and I’m afraid to say that I gave into it after my fast on Sunday (again, yes, not wise, I know). And you know what wine leads to don’t you? More wine… And then eating.
I wouldn’t go so far as to say it was a binge, but I had planned on just having a moderate sized meal that evening and instead ended up polishing off some cheese and crackers and a bit of chocolate after dinner.
The next day I felt normal. If anything, less hungry than usual, but that was most likely down to the extra food I had the previous evening.
So, although far from a text book example of how to carry out a 24 hour fast, I did discover that a day without food is not terribly difficult. In fact, I quite enjoyed the challenge. I didn’t take my weight or measurements, so can’t report any effects on that score – as mentioned, it was really just an exercise for me to see what it would be like.
Clearly, there are various issues for me to think about here, but I am keen to experiment with this a little more. Next time I might try a 24hr period from lunchtime to lunchtime, so I don’t have to break my fast in the evening and can ease back into eating through the rest of the day.
I will, of course, let you know how it goes.

Interesting. A part of me thinks I couldn’t do this but another part of me thinks it would be easier than restricting food. As I said before I am fine not eating until mid-afternoon but once I eat my appetite goes insane. I wonder if it would be better to not eat at all. Not sure I’d last the night, though! You’ve done very well.
Thanks Claire. I’m finding the who thing quite fascinating. Like I said on the post, it was a bit of a revelation to discover I wasn’t hungry and this has got me thinking about how often I might be eating just out of habit. For me, I think knowing I was going to eat anything at all did make it easier. But as you read, my appetite wasn’t exactly on a tight rein when I ended the fast! I’ll have to try it a few more times before I’ll feel like I can generalise on how I react to it though.
Someone once gave me some very good dieting advice (when I was going through a period of never feeling hungry): discern between hunger and appetite. I know I eat a lot for a number of reasons that have very little to do with actual hunger, and I have also come to tell the difference between physical and emotional hunger over the last couple of years.
You know what? I am giving this a go myself today. Yesterday I started calorie counting and within a couple of hours I resorted to binge eating, this tells me calorie counting isnt for me (I tend to binge every time I try it). I figured as I ate a lot yesterday, today is a good opportunity to try this fasting thing. I can’t disagree with something I havent tried, after all! So until 11pm tonight, I wont be having anything to eat (unless I cave). At the moment I am not hungry at all.
Also I wanted to say, kudos to you for doing this. Nothing worse than a fitness trainer who doesnt take onboard their own advice and if you’re going to suggest this to clients, its good you know what you’re talking about!
I am pleased to report I completed it. Not sure I’ll repeat it in a hurry again though! Will write more on it tomorrow on my blog. Thanks for inspiring me, I feel really accomplished!
Good stuff Claire. Looking forward to reading your report. Did you find it a worthwhile exercise at least?
Yes, it was definitely worthwhile as you’ve seen on my blog. Thank you for inspiring me!
(Actually, I have just noticed that the experience is making me more mindful of what I eat, even though I am no longer fasting.)
I tried this for one day last week and was also surprised at how easy it was.
I have been looking up different videos on You tube and am now trying to restrict my eating within 8 hours during a day. It means you should take in less calories than normal as you generally have one less meal. I am finding it easier than having smaller portions across 3 meals.
Since I’ve been talking about this on social media so many people have told me they’re trying it too – I’m utterly amazed by how popular it’s becoming! I haven’t watched any YouTube videos about it – got any good links?
I just finished my 2nd 24 hour fast since watching the Horizons programme on it. First time I did 2pm to 2pm, this time I did 1.30pm to 1.30pm, I think it’s much easier doing it lunchtime to lunchtime. I went to bed early and had a lie in and made sure I kept busy at work. I’ve had eating problems since I was a teenager, now 32, and this feels like it just resets my whole attitude to food.
Thanks Tracey, that’s good to know, I suspect those sort of timings would work better for me too. I’ve only tried it once, but I totally get you mean about resetting your attitude to food. I’m going to talk more about that in future posts, but it really was revelation. Is fasting something you intend to do regularly now?
I’ve been thinking about this and concluded that breakfast to breakfast would be hardest. You’re esentially skipping two meals by doing it based on a 24-hour fast. Breakfast to Breakfast you skip lunch and dinner – probably both bigger meals than breakfast. It also means going to bed hungry which must be toughest.
Either way I don’t envy you and won’t be trying it but it’s interesting to read your accounts.
Laura.