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Calorie deficit not working

208 replies

Username06 · 19/05/2025 19:45

I am a lifelong yo-yo dieter, if truth be told I definitely have some issues with food, I've been on/off a diet since my teens, basically I'm either on a diet losing weight or eating like food is going to become non-existant hence the constant yo-yoing.
I've always gone to slimming groups, always lose the weight and think I've changed my life around and then end up back at square one.

So i have decided now to try a calorie deficit in order to eat the things I still love in moderation and try to learn to eat healthy with occasional treats and lose weight. I have also started jogging a couple times a week as I'd like to be able to exercise and then have a treat without putting on the weight again when i reach my goal. At present I have a stone to lose to get back to a healthy BMI.

Here's the issue, in a month I've lost a couple of pounds despite feeling starving everyday and bloody exercising! I lose weight much faster following slimming world, what is going on, do calorie deficits just not work on some people, feeling so disheartened 😔

OP posts:
soupyspoon · 19/05/2025 21:32

NeverHadHaveHas · 19/05/2025 20:20

A jog twice a week will be burning hardly any calories. Are you doing 10,000 steps a day?

What do you think 10k steps a day will do or what its purpose is?

From what I read on here on countless threads people think pottering around the house counts as step activity anyway. Pointless.

Poonu · 19/05/2025 21:28

Try. The Carbon app. It's brilliant. Designed by some scientists biologists at Stanford uni.

Username06 · 19/05/2025 21:27

lifemakeover · 19/05/2025 20:23

As PP said ALL diets are calorie deficit - they just wrap it up in a different way. There is no other way to lose weight!

I 100% know that but struggle to understand why I can lose about 10 pounds in a month on slimming world yet have only lost 3 pound in a calorie deficit with exercise 😔

OP posts:
Username06 · 19/05/2025 21:24

NeverHadHaveHas · 19/05/2025 20:20

A jog twice a week will be burning hardly any calories. Are you doing 10,000 steps a day?

I do 10,000 or more steps a day about 4/5 times a week, the other days maybe 7-8,000. My job is completely sedentary so alot of my steps are actually done round the house doing housework/ tidying etc and walking to/from school runs.
I've only started jogging as I want to get to my healthy weight and be able to enjoy a few treats guilt free knowing I've burnt a few calories to earn it. I have NEVER exercised before in my life. 2 years ago I lost 4 stone on slimming world in 9 months without a single bit of exercise aside from the walking I do as above.

OP posts:
socks1107 · 19/05/2025 21:23

I’ve been on a calorie deficit since Xmas and am
a few pounds off two stone now.
I worked out my deficit using James smith/tdee calculators and stick that daily.
But - I weight train two to three times a week ( at home or the gym) and walk 18k steps 6 days a week. I’ve also began looking at what sorts of food I eat and keep macro nutrients in check with salt, fat, carbs and sugar and I aim for 130g of protein daily. I’m loosing steadily but no fast and my body composition is changing, it’s actually fascinating to look back at photos of me even a month ago as my body shifts shape.
Its an effort, it’s a daily plan and process but I feel
amazing! I use nutracheck and chat gpt to help

Username06 · 19/05/2025 21:12

Iwrotethelyricstoaxlf · 19/05/2025 19:48

Well

it also depends on the makeup of the calories

whats your TDEE and what does your diet look like as a snapshot.

So my TDEE is apparantly 1,800 so I could shave off 100 calories more of what I've been eating.
My diet isn't going to be what anyone thinks is 100% perfect I am trying to have a better relationship with food and not restrict all these 'naughty foods' that slimming clubs have made me think are off limits so breakfast is either fruit/yogurt or weetabix/porridge usually with a measured amount of jam or peanut butter. Lunch can be anything from a tuna/egg salad sandwich (made at home), a salad, cheese and crackers, sometimes a mugshot if I'm strapped for time etc with fruit or jelly. Dinners for example this week I've had tuna pasta salad, pork stir fry, chicken, veg & rice, omelette & the odd ready meal on days my DD has clubs and I have a busy day etc.
I do have a small sweet treat in the evenings, using about 200 cals as evenings are my downfall and without this I can fall into a bit of a binge.

Absolutely everything is weighed and measured, milk portioned for my tea and no butter/oil used in cooking.

OP posts:
doodleschnoodle · 19/05/2025 21:11

I was just listening to the Zoe podcast today and they were discussing a study where they had people eating cheese sandwiches: one with ultra-processed white bread and processed cheese and the other with multi-grain bread and cheddar. They found that the participants burned far more energy after eating the whole food option, despite the calories for both being the same.

There was a lot more about it but I found that really interesting, because there doesn’t seem to be much out there about how the calories in/calories out equation can actually be potentially disrupted or altered by the type of food eaten, due to thermodynamics. It’s quite a niche area I think but there’s so much we don’t understand about metabolic science and so much new science that is upending all the previous stuff we thought we knew.

RunSlowTalkFast · 19/05/2025 21:09

I'm 5'2, a couple of stone overweight but I lose weight at 1800 calories a day!

ClareVoiance · 19/05/2025 21:06

@Jacarandill Jogging is great, Jogging and weights much better. Walking is fine but you need to be moving swiftly.

None of them will make one lose weight, but they'll help tone the body.

miniaturepixieonacid · 19/05/2025 21:05

Depending on your size and activity levels, 1400 could be way too high to be in a significant calorie deficit. I only burn around 1550 calories on an average day (short, petite, not especially sporty). If I ate 1400 a day then 2 pounds in a month would be a pretty good result! I have to go below 1000 to get big losses which obviously isn't healthy.

Lots of people (and eeven apps) just assume that a woman burns 2000.

Jacarandill · 19/05/2025 21:04

doodleschnoodle · 19/05/2025 21:01

1400 for weight loss isn’t that low, it’s pretty normal for a woman. I am only 1700 calories or so for maintenance, so would need to drop to 1200 calories to lose weight at the 500 cals a day deficit rate (which I have done for the past six months to great success).

Calorie deficit is only the start of the story. I’d really recommend doing some reading around why what those calories are really matters. Sure, you can lose weight eating 1200 cals of chocolate a day, but it will be almost impossible to stick to (as well as being very unhealthy) as it’s not what a body requires. Whereas 1200 cals of the right food can be very filling and level out your energy and blood sugar spikes during the day, and if something fills you up, you’re less likely to then binge and snack on stuff.

I have totally changed my diet, and it’s much more of a Mediterranean style diet. I’d have a look at some of Michael Mosley’s stuff, the Zoe podcast, Andrew Jenkinson’s books are good too. They’ve really changed my understanding of what my diet (permanent diet, as in a way of life) needs to be for my health and I’ve never felt better or had more energy. It needs to be a lifestyle shift, and the shift will make it easier to stick to reduced calories because they will be the right kind of calories.

Edited

OP - this is 100% correct. If you want something that works you need to listen up.

It’s not a popular refrain on the weight loss boards of MN though…

Trovindia · 19/05/2025 21:04

CMRE · 19/05/2025 20:15

1400 is very low. Questions I’d usually ask -
Are you tracking the milk going in to your tea?
Oil and butter used in cooking?
The mini things are where people often overlook calories when tracking, and they quickly add up.

But that said, 1400 is very, very low. Can you do a proper TDEE as others have said (google TDEE calculator)

1500 is my maintenance level, I don't lose unless I'm sub 1200 and ideally nearer 1000. We are all different.

doodleschnoodle · 19/05/2025 21:01

1400 for weight loss isn’t that low, it’s pretty normal for a woman. I am only 1700 calories or so for maintenance, so would need to drop to 1200 calories to lose weight at the 500 cals a day deficit rate (which I have done for the past six months to great success).

Calorie deficit is only the start of the story. I’d really recommend doing some reading around why what those calories are really matters. Sure, you can lose weight eating 1200 cals of chocolate a day, but it will be almost impossible to stick to (as well as being very unhealthy) as it’s not what a body requires. Whereas 1200 cals of the right food can be very filling and level out your energy and blood sugar spikes during the day, and if something fills you up, you’re less likely to then binge and snack on stuff.

I have totally changed my diet, and it’s much more of a Mediterranean style diet. I’d have a look at some of Michael Mosley’s stuff, the Zoe podcast, Andrew Jenkinson’s books are good too. They’ve really changed my understanding of what my diet (permanent diet, as in a way of life) needs to be for my health and I’ve never felt better or had more energy. It needs to be a lifestyle shift, and the shift will make it easier to stick to reduced calories because they will be the right kind of calories.

Jacarandill · 19/05/2025 21:00

HScully · 19/05/2025 20:59

You need to weigh out your portions, and not guesstimate calories. You will probably find your are eating more than you think.

But if she’s feeling hungry then it’s not sustainable anyway, especially if you’re suggesting she should be eating even less…

HScully · 19/05/2025 20:59

You need to weigh out your portions, and not guesstimate calories. You will probably find your are eating more than you think.

Youstolemygoddamnhouse · 19/05/2025 20:58

Friends what you’re eating. You need protein and whole foods. 1500 calls of eating UPF will make you feel like crap however 1500 cals is a lot of food if you have steak, chicken, eggs, green vegetables. Most people actually underestimate how much they do it and forget to add things like mayo or butter. Or portions of food. Use a tracker like my fitness pal?

Jacarandill · 19/05/2025 20:55

MoominMai · 19/05/2025 20:52

You do realise that there is no scientific proof behind 10k steps as the magic number needed to do each day?! It was a marketing ploy from years ago to sell as pedometer but obviously continues to catch people out to this day. Also, OP doing a few jogs a week as she said is a very good start I’d say.

She’d be better off doing some short sprints or weights, plus the walking. Jogging no good!

MoominMai · 19/05/2025 20:52

NeverHadHaveHas · 19/05/2025 20:20

A jog twice a week will be burning hardly any calories. Are you doing 10,000 steps a day?

You do realise that there is no scientific proof behind 10k steps as the magic number needed to do each day?! It was a marketing ploy from years ago to sell as pedometer but obviously continues to catch people out to this day. Also, OP doing a few jogs a week as she said is a very good start I’d say.

Jacarandill · 19/05/2025 20:51

Try Joe Wicks or weights. The low-carb JW recipes are delicious and filling. Combine with the exercises.

The quickest way to lose weight if you’ve to-yo dieted is to change your body composition by gaining more muscle so you increase the amount of calories you burn. I’ve increased my muscle over the last few years and I can eat loads without putting on weight.

Otherwise your calorie ‘allowance’ will be so low you’ll feel permanently hungry and eventually fall off the wagon.

lifemakeover · 19/05/2025 20:23

As PP said ALL diets are calorie deficit - they just wrap it up in a different way. There is no other way to lose weight!

NeverHadHaveHas · 19/05/2025 20:20

A jog twice a week will be burning hardly any calories. Are you doing 10,000 steps a day?

JustGoClickLikeALightSwitch · 19/05/2025 20:20

SoSoLong · 19/05/2025 19:56

You're either underestimating your calorie intake or you're overestimating how many you consume through exercise. Or you're doing both right but the deficit isn't large enough.

This.

More generally, it may not be the approach for you. I find calorie deficit the easiest - I set a limit for the day, make/buy meals which are bulky and filling but low cal, add a treat, job done. But not everyone follows/finds the same approach easiest.

CMRE · 19/05/2025 20:15

Username06 · 19/05/2025 20:11

I have downloaded an app similar to my fitness pal, can't remember it's exact name as its on my iPad and calculated my calories based on my weight/height/fitness etc and my daily allowance is 1400.
To be fair I'm not a big drinker and have always struggled but in my defence I have always been this way and I lose weight on slimming world/weight watchers easily without drinking tonnes of water. My main intake is tea but I do have a nearly 1 litre bottle I try to get through daily.

1400 is very low. Questions I’d usually ask -
Are you tracking the milk going in to your tea?
Oil and butter used in cooking?
The mini things are where people often overlook calories when tracking, and they quickly add up.

But that said, 1400 is very, very low. Can you do a proper TDEE as others have said (google TDEE calculator)

Username06 · 19/05/2025 20:12

Sorry I don't actually know what BMR and TDEE is?

OP posts:
Username06 · 19/05/2025 20:11

Citycathedral · 19/05/2025 19:48

How much of a calorie deficit are you in each day? You need I a deficit of 500 calories a day to lose one pound a week. Are you drinking enough water too?

I have downloaded an app similar to my fitness pal, can't remember it's exact name as its on my iPad and calculated my calories based on my weight/height/fitness etc and my daily allowance is 1400.
To be fair I'm not a big drinker and have always struggled but in my defence I have always been this way and I lose weight on slimming world/weight watchers easily without drinking tonnes of water. My main intake is tea but I do have a nearly 1 litre bottle I try to get through daily.

OP posts:
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