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A space to talk openly about weight loss journeys and challenges. Mumsnet hasn't checked the qualifications of anyone posting here. You may wish to speak to a medical professional before starting any diet.

Is being Obese an illness?

508 replies

agel · 18/10/2026 16:15

Yes or No
Im really not trying to start an argument. I want to understand what people actually think/know/believe about this.

I am obese and am trying to gain some sort of control over my eating through therapy at the moment. I’ve tried diets and exercising that do work but long term I don’t seem to be able to change my lifestyle enough to keep the weight off. I hate living like this and how people treat me differently because of my size. My family don’t understand at all. My partner is not understanding and it’s seriously affecting our relationship in many ways. It seems unfair because I don’t feel I have much control over this. It’s actually very lonely being in this situation. I rarely mention the topic of my health or weight to others because pardon the pun it’s always the elephant in the room! But you can almost hear what people are thinking. I hate the judgemental looks and comments. I rarely go out now because of anxiety and panic attacks brought on by this situation.

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scoutzx · 20/10/2026 11:22

zoeslim · 20/10/2026 11:06

No it is a lifestyle choice for 99% of people

It is a lifestyle choice, the person is choosing to overeat. No one else is putting the food into your mouth.

For most of human history people were very physically active and food was often scarce.

EscCtrl · 20/10/2026 11:22

Worldwide obesity is being classed as a disease or illness so that drug companies, doctors, and psychologists can make money out of obese people. In the UK doctors employed by the NHS are fairly ethical because they are not driven by the profit motive.

I think I was obese, and am still over-weight, and on a diet (again) because I like delicious calorie laden foods and I tend to over eat.

I'm fat because I'm a species of ape (like most mammals) that has evolved the survival mechanism of storing body fat during times of abundance. My body evolved to reward me with pleasure for eating those calorie rich foods. In modern Western society there is no end to food abundance, and, unlike for my hunter gatherer forebears, rich food is available without much expenditure of energy. It's a biological condition; it's my nature. I am a cookie monster.

Fiftyandme · 20/10/2026 11:29

Surely it’s a symptom?

scoutzx · 20/10/2026 11:40

Fiftyandme · 20/10/2026 11:29

Surely it’s a symptom?

Yes, if food became scarce again, obese people would become slimmer.

MidnightMeltdown · 20/10/2026 11:44

No, but in a minority of cases it can be a symptom of an illness

scoutzx · 20/10/2026 11:51

MidnightMeltdown · 20/10/2026 11:44

No, but in a minority of cases it can be a symptom of an illness

A person would not remain obese during a state of true, sustained food scarcity, even in the presence of underlying medical conditions.

Daygloboo · 20/10/2026 11:53

SilenceInside · 18/10/2026 16:40

It’s a disease. It’s not an illness but it increases the risks massively of other illnesses.

Having lost weight from morbidly obese to a healthy weight over the last two years I realise now that being able to do that unsupported is incredibly hard work. I had never managed to do it consistently given all the other things I was in control of that were a higher priority than my weight.

Can you give a few insights and tips. I would genuinely be interested to hear experiences of what worked from someone who has had success with it. And congratulations. I need to lose about a stone and I find it really hard.

DeliaPith321 · 20/10/2026 11:56

scoutzx · 20/10/2026 11:22

It is a lifestyle choice, the person is choosing to overeat. No one else is putting the food into your mouth.

For most of human history people were very physically active and food was often scarce.

If only it was that simple. If someone is addicted to a substance is it still choice? Is heroin addiction a lifestyle choice?
If someone has binge eating disorder they suffer with compulsion to eat. If another person has difficulty with regulation and impulsivity such that they have functional differences in the ability of processes in their frontal lobe to inhibit behaviour it causes them to eat. If yet another person has interoception deficits they cannot sense when they are full. And then there are the environmental, developmental, and economic situational factors that I mentioned in my previous comment none of which feature the individual's ability to choose.
Further still the British Psychological Society published research some years ago on findings of a substantial amount of people who overeat due to abuse they have been victim to. Again not their choice.
When we look at behaviour it is far too reductionist to assume that someone is doing something because they have chosen to without anything else at all influencing that supposed choice. Behaviour happens via an interplay of cultural, psychological, social, developmental, and economically situational factors.

SilenceInside · 20/10/2026 11:57

@Daygloboo ah, sorry, I have done it the "wrong" way and have been supported by medication, specifically Mounjaro. So I have nothing helpful to say other than eat less and move more.

Monty36 · 20/10/2026 11:57

Arguably if you are overweight and find it easy to store fat your body is efficient.
In a famine you may well survive. People who cannot store fat so easily will not.

Sadly, in Western society being fat is not useful. In the main the majority of people in the West do not experience a famine. So slim is the desired shape. The need to be able to store fat is not of any use whatsoever. You never need to use it up.

MidnightMeltdown · 20/10/2026 12:03

scoutzx · 20/10/2026 11:51

A person would not remain obese during a state of true, sustained food scarcity, even in the presence of underlying medical conditions.

So? How is that relevant to what I said?

scoutzx · 20/10/2026 12:07

DeliaPith321 · 20/10/2026 11:56

If only it was that simple. If someone is addicted to a substance is it still choice? Is heroin addiction a lifestyle choice?
If someone has binge eating disorder they suffer with compulsion to eat. If another person has difficulty with regulation and impulsivity such that they have functional differences in the ability of processes in their frontal lobe to inhibit behaviour it causes them to eat. If yet another person has interoception deficits they cannot sense when they are full. And then there are the environmental, developmental, and economic situational factors that I mentioned in my previous comment none of which feature the individual's ability to choose.
Further still the British Psychological Society published research some years ago on findings of a substantial amount of people who overeat due to abuse they have been victim to. Again not their choice.
When we look at behaviour it is far too reductionist to assume that someone is doing something because they have chosen to without anything else at all influencing that supposed choice. Behaviour happens via an interplay of cultural, psychological, social, developmental, and economically situational factors.

What stopped people from becoming obese in the 1960s for example? Obesity was rare then.

SilenceInside · 20/10/2026 12:09

@scoutzx are you suggesting that as a society we move back to a 1960s model of food supply and availability? How would that practically work?

scoutzx · 20/10/2026 12:10

MidnightMeltdown · 20/10/2026 12:03

So? How is that relevant to what I said?

Obesity isn’t a symptom of an illness. That was why I wrote my post.

DeliaPith321 · 20/10/2026 12:14

scoutzx · 20/10/2026 12:07

What stopped people from becoming obese in the 1960s for example? Obesity was rare then.

We didn't have the food environment we have now with junk food and upf advertising. We also didn't have the convenience of Deliveroo and JustEat. We also didn't have anywhere near as much UPF hyperpalatable foods available and pushed in advertising and all cheap. We didn't have scientists being hired by food companies to help make foods purposefully addictive.

RosaNovella · 20/10/2026 12:24

Ffiohna · 20/10/2026 10:21

And if you have no trauma and all the other things you mention, but just always hungry and when you eat, you are never full, what’s that then? I’m not doubting that trauma and self medication via food is real, just that I (and many others I’m sure) don’t recognise this. Self loathing perhaps yes through the fact I don’t seem to be able to be full.

Probably eating foods that are UPF, dont satisfy/ induce saitety and are addictive

The massive amounts of these foods available also mean bad habits develop
Eating because of boredom/ tredness/ stress

scoutzx · 20/10/2026 12:26

SilenceInside · 20/10/2026 12:09

@scoutzx are you suggesting that as a society we move back to a 1960s model of food supply and availability? How would that practically work?

No. the population is too high now.

Notmycircusnotmyotter · 20/10/2026 12:26

No it's a disability / weakness (unless caused by medication / other disability)

Notmycircusnotmyotter · 20/10/2026 12:28

I genuinely cannot understand people not having control over what they consume. I don't smoke because it's damaging. I don't over eat for the same reason. I just don't buy that it's not a self control issue (usual caveats).

scoutzx · 20/10/2026 12:29

Notmycircusnotmyotter · 20/10/2026 12:26

No it's a disability / weakness (unless caused by medication / other disability)

Obesity on its own is not automatically classified as a disability under the Equality Act 2010 in the UK.

RosaNovella · 20/10/2026 12:29

scoutzx · 20/10/2026 12:07

What stopped people from becoming obese in the 1960s for example? Obesity was rare then.

Set meal times
Smaller portions
Women housekeeping
Fewer snacks
Drinks were water, tea and squash
Whole foods, home baking, seasonal fruit and veg
Home cooked foods
Sitting at the table to eat
Lack of central heating
No 24 hour access to tv/ screens
Walking/ cycling
Misogyny

FlatCatYellowMat · 20/10/2026 12:30

scoutzx · 20/10/2026 11:22

It is a lifestyle choice, the person is choosing to overeat. No one else is putting the food into your mouth.

For most of human history people were very physically active and food was often scarce.

You're speaking as though obese people are binging (yes some people do, but many of us don't)

When you don't have the fullness feeling, it's very easy to eat 200 extra calories - that's a cup of rice, or a glass of milk, or a matchbox of cheese. If you do that every day, that's potentially a kilo a month you're putting on. Just by putting a slightly thicker smear of butter on your sandwich, adding one more spoon of pasta to your plate.

SilenceInside · 20/10/2026 12:34

Notmycircusnotmyotter · 20/10/2026 12:28

I genuinely cannot understand people not having control over what they consume. I don't smoke because it's damaging. I don't over eat for the same reason. I just don't buy that it's not a self control issue (usual caveats).

@Notmycircusnotmyotter I get that many people don't understand it. I'm not sure what you are asking here though - do you think that it's a character flaw, or some sort of moral failing or some other personal characteristic that you don't have? Something that's really easy to sort out, and people just choose not to bother?

I don't smoke because it's damaging to my health. I don't drink for the same reasons. I don't do illegal drugs, ditto. And so on. I have lots of self control in loads of areas of my life, basically every other aspect of my life apart from food.

I (did) overeat, all my life, from childhood onwards. I don't know why food and eating is the one area that I have failed to control for decades.

FlatCatYellowMat · 20/10/2026 12:35

Notmycircusnotmyotter · 20/10/2026 12:28

I genuinely cannot understand people not having control over what they consume. I don't smoke because it's damaging. I don't over eat for the same reason. I just don't buy that it's not a self control issue (usual caveats).

We have control, what we don't have is feedback.

If you are deaf, and you're asked to set the volume of the TV, you're just going to guess half-way round, you don't know if that's uncomfortably loud or too quiet to hear. If you're blind, you can't tell if the outfit you're putting together has matching colours or not. If you can't feel when you're full, you're always just guessing if you've eaten the right amount of the right things.

I have 2 cats, they have free access to food. Neither is obese. Other people have cats with free access to food, and they get obese. Why is that? Because those cats are missing whatever it is that my cats have that tells them they've eaten enough. There's no reason humans would be any different.

EscCtrl · 20/10/2026 12:35

Rationing. It's what they had during "the war", Britain's finest hour. Declare war on obesity. The nation was never fitter than when it had to dig for victory. Woolton pie. [I am joking 😀]