Training guide

How to lose face fat: what slims a face, what makes it puffy, and a double chin

Your face follows the rest of your body: on scans, the fat pads in the cheeks are bigger in people who weigh more, and faces lose volume when people lose weight. There's no way to lose fat from your face first, and face exercises and chewing gum haven't been shown to slim it.

A lot of what people call face fat is puffiness, which comes and goes, or the bone structure and face shape you were born with. What helps is the same as for any fat: moving more, eating a little less if you have weight to lose, and sleeping well.

This guide explains what changes a face and what doesn't, why faces look puffy, face exercises, a double chin and fast weight loss, and the signs that a puffy or rounder face needs a GP.

The short version

Your face follows your body

On MRI (magnetic resonance imaging) scans, the fat pads in the cheeks were bigger in people with a higher BMI (body mass index), and face shape tracks body weight. When you lose body fat your face slims too, but you can't choose to lose it from your face first.

Sources 1, 2, 3

Some of it isn't fat you can lose

Face size and shape are largely inherited, and deep fat pads, such as the one in each cheek, vary between people. Diet and exercise don't change your bone structure.

Sources 4, 5

Faces change with age

Over the years, fat in the middle of the face tends to thin, while fat under the chin and in the neck tends to increase.

Sources 6, 7

Face exercises and gum don't burn it

No study has measured face fat after face exercises, and reviews call the evidence for any change insufficient. Chewing gum 3 times a day for 6 months didn't change jaw muscle size or jaw shape in a trial.

Sources 8, 9, 10

Puffiness comes and goes

Faces look more tired and puffy-eyed after a night without sleep, heavy drinking went with puffier eyes in one survey of women rating their own faces, and salty food can cause fluid build-up (our reading of the NHS advice on swelling).

Sources 11, 12, 13

Some changes need a doctor

A rounder, red face with new fat on the tummy and upper back, new swelling of the face along with swollen legs, or sudden swelling of the lips or tongue needs a doctor, not a diet.

Sources 14, 13, 15

What changes a face

The fat in your face

Your face has fat just under the skin in separate pockets, such as in the cheeks; deeper fat pads, such as the buccal fat pad in each cheek and the fat around the eyes; and fat under the chin and in the neck.

Sources 1, 5, 7

Your weight

In MRI scans of 87 adults, both the outer and the deeper fat in the cheeks were bigger at a higher BMI, and in 63 scans the deep fat pads grew with BMI and age. Face width and cheek shape change with body weight closely enough that people judge weight from faces.

Sources 1, 5, 2, 16

Losing weight

In one small study of 20 people who lost about 11 kg on GLP-1 (glucagon-like peptide-1) weight-loss medicines such as semaglutide, scans showed the middle of the face lost volume, mostly from the fat just under the skin, and more with more weight lost.

Source 17

Age

In 70 adults scanned twice about 4 years apart, the fat in the middle of the face thinned and shifted down, in women and men alike. In 47 women, neck fat was greater with age and BMI, most of all in midlife, while the buccal fat in the cheeks was smaller with age.

Sources 6, 7

Genes and bone

In 1,380 female twins, genes explained more than 70% of the differences in face size and in several nose and lip measures. Bone structure and inherited face shape are a big part of what makes a face look round or slim.

Source 4

Women and men

The deep fat pads and the cheek fat didn't differ between women and men on MRI.

Sources 5, 1

What the evidence says

Face fat rises and falls with body fatStrong evidence

Scans of 87 and 63 adults found more cheek and deep face fat at a higher BMI, and face shape measures tracked BMI in women and men. Ratings of how much fat young women had in their faces were better predicted by their body weight than by their body shape.

Sources 1, 5, 2, 16

Fast weight loss and the faceEmerging evidence

In 20 patients on GLP-1 medicines, the middle of the face lost volume as they lost weight, mostly from the fat just under the skin. It was one small study that looked back at existing scans, so it can't say what will happen to any one person.

Source 17

You can't spot-reduce fat from your faceStrong evidence

Across 13 studies of 1,158 people, training one body part didn't take more fat off it. The studies were of arms and legs; no study has shown the face is different.

Source 3

Face exercises haven't been shown to reduce face fatMixed evidence

A 2014 review found 9 studies, none randomised with a comparison group. A 2025 review of 12 studies in 321 women found only small changes in particular areas and called the evidence insufficient; none measured face fat. A mouthpiece device used for 30 seconds twice a day for 8 weeks enlarged cheek and under-chin muscles in 50 women, with no comparison group. The best-known face yoga study was a small 20-week pilot run with the founder of the programme it tested; our face yoga guide covers what it found.

Sources 8, 9, 18, 19

Chewing gum doesn't reshape the faceEmerging evidence

58 adults were randomised to chew gum 3 times a day for 6 months or not. Bite force rose, but jaw muscle thickness and jaw shape didn't change. It's one trial.

Source 10

Sleep loss shows in the faceEmerging evidence

40 observers rated photos of 10 people taken after normal sleep and after 31 hours awake: after sleep loss, faces looked more tired, with more swollen eyes, hanging eyelids and darker circles.

Source 11

Alcohol and puffy eyesEmerging evidence

In an online survey of 3,267 women who rated their own faces against photo scales, drinking 8 or more drinks a week went with more puffiness under the eyes. Self-ratings at one point in time can't show cause and effect.

Source 12

Salt and puffinessMixed evidence

The NHS lists eating too much salty food as a cause of fluid build-up in the ankles, feet and legs, and advises adults to have no more than 6 g of salt a day. We found no study of salt and facial puffiness, so the link to the face is our reading of that advice.

Sources 13, 20

Injections for fat under the chinStrong evidence

A medical treatment, not exercise: in a trial of 506 adults, 70.0% improved by at least one grade with deoxycholic acid injections against 18.6% with placebo injections, and temporary nerve weakness affected 4.3%. In follow-up studies, the result lasted up to 4 years in most people.

Sources 21, 22

What helps

If you have weight to lose

Move more, eat a little less and strength train twice a week, aiming to lose 0.5 to 1 kg a week as the NHS suggests. Your face slims as your body does.

Sources 23, 24, 25

If you're already slim

Much of a full face then comes from bone structure, inherited shape and fat pads that differ between people, so dieting for a thinner face isn't a good idea (our view). Our calories per day calculator only offers a weight-loss target at a BMI of 25 or more.

Sources 4, 5

Sleep 7 to 9 hours

That's what adults need, as the NHS says, and a night without sleep shows in the face.

Sources 26, 11

Keep alcohol within 14 units a week

Spread it over 3 or more days, as the NHS advises. It's good for your health, whatever it does for your face.

Sources 27, 12

Keep salt under 6 g a day

That's about a level teaspoon, the NHS's limit for adults, counting the salt already in foods such as bread, breakfast cereals and ready meals.

Source 20

Strength train

Work all your major muscles on 2 days a week, as the NHS advises. It keeps your muscle while you lose fat and trims a little fat on its own.

Sources 28, 25

Why your face looks puffy

Puffiness is fluid, not fat

It comes and goes within hours or days, which fat doesn't. A face that's puffy one morning and fine the next is about fluid, sleep or what you ate and drank, not your weight.

After a night without sleep

After a night without sleep, observers saw more swollen eyes and hanging eyelids. Adults need 7 to 9 hours.

Sources 11, 26

After drinking

In one survey of women rating their own faces, heavy drinking went with puffier eyes. Keeping within 14 units a week is good for you anyway.

Sources 12, 27

After salty food

Salty food can cause fluid build-up, which the NHS describes in the legs; we've assumed the face can be affected too (our reading of that advice).

Sources 13, 20

Before a period

The NHS lists bloating among the commonest symptoms before a period. We found no study of facial puffiness across the cycle.

Source 29

Rollers, gua sha and massage

Our gua sha and lymphatic drainage guides found no controlled trials showing they reduce facial puffiness.

Puffiness that's new or doesn't settle

Swelling that is new, on one side, sudden, or comes with other symptoms needs a doctor: see the warning signs below.

Face exercises, face yoga and chewing gum

What the reviews found

Reviews in 2014 and 2025 found small studies, mostly without a comparison group, and called the evidence insufficient. None of the studies measured face fat.

Sources 8, 9

A device study

Using a mouthpiece exercise device for 30 seconds twice a day for 8 weeks enlarged a cheek muscle and a muscle under the chin in 50 women, and lower-face measurements got smaller. With no comparison group, other explanations can't be ruled out.

Source 18

The best-known face yoga study

It was a small 20-week pilot in middle-aged women, run with the founder of the programme it tested. Our face yoga guide goes through what it found and why it can't settle the question.

Source 19

Chewing gum and a jawline

In a 6-month trial, chewing gum 3 times a day raised bite force but didn't change jaw muscle thickness or jaw shape.

Source 10

If you enjoy face yoga

Gentle face exercises seem safe for most people. Our face yoga guide has a gentle routine in written steps and explains why wide jaw opening and chewing exercises can strain the jaw.

A double chin

What it is

Fat under the chin, sometimes with loose skin. Neck fat tends to be greater with age and BMI, and the shape of your jaw and chin, which is largely inherited, plays a part.

Sources 7, 4

What shrinks it

Losing body fat, if you have fat to lose. No trial we found shows chin or jaw exercises reduce fat under the chin.

Sources 3, 1

Medical treatments

Injections of deoxycholic acid, given by a doctor, reduced fat under the chin in a large trial. They're a medical treatment with side effects, not exercise, so talk them through with a doctor.

Sources 21, 22

Fast weight loss and "Ozempic face"

What one study found

"Ozempic face" is a popular name for a face that looks hollower after fast weight loss. In 20 people on GLP-1 medicines, the middle of the face lost volume, mostly from the fat just under the skin, but one small study can't say how any one face will change.

Source 17

Keep strength training

Our weight-loss guide explains why experts advise strength training while taking weight-loss medicines.

Moves that use the most of you

Whole-body moves for the fat-loss half: goblet squats, rows and Romanian deadlifts at 8 to 12 reps, twice through, as in our 20-minute strength workout, plus your weekly walking, cycling or rowing.

How to compare photos fairly

Our editorial suggestions.

  1. Use the same place, the same light and the same time of day, because puffiness can change through the day.
  2. Keep the same distance and camera height, with your face relaxed and looking straight ahead.
  3. Take a photo every 4 weeks, not every day.
  4. Compare with your waist measurement and how your clothes fit, not with other people's photos.

Workouts to follow

Your face slims with your body. These are whole-body sessions; there's no face workout that burns fat.

Plans

The weight-loss plan is the main one; the walking plan builds to 150 minutes a week from very little.

Warning signs: when a puffy or rounder face needs a doctor

Call 999 (911 in the US)

If your lips, mouth, throat or tongue suddenly swell, you're struggling to breathe or swallow, or your lips or skin turn blue, grey or pale: it could be a serious allergic reaction. Don't drive yourself to A&E.

Source 15

Ask for an urgent GP appointment or call NHS 111

Get help the same day if any of these apply. In the US, contact your doctor or urgent care.

  • part of your body, such as your face, suddenly swells
  • your face is newly swollen and your ankles, feet, legs or tummy are swollen too
  • swollen glands make it very hard to swallow or breathe

Sources 15, 13, 30

See a GP

See a GP if:

  • your face is red and round, with more fat on your neck, upper back, chest and tummy while your arms and legs look thin, easy bruising, stretch marks or weak muscles: it could be Cushing's syndrome, especially if you take steroid medicine (don't stop steroids without talking to your doctor)
  • you're putting on weight and feel very tired or cold, or have dry skin or a hoarse voice: you could have an underactive thyroid
  • a lump under your chin or in your neck hasn't gone down within a week, feels hard, or comes with night sweats or a very high temperature

Sources 14, 31, 32, 30

In children

Swelling first noticed around the eyes, then around the lower legs, can be a sign of a kidney condition called nephrotic syndrome. See a GP.

Source 33

When worry about your face takes over

Worrying a lot about a specific area of your body, particularly your face, comparing your looks with other people's and checking mirrors a lot can be body dysmorphic disorder (BDD). It isn't vanity. See a GP, or refer yourself to NHS talking therapies.

Source 34

When eating or exercise becomes harmful

The NHS lists spending a lot of time worrying about your weight and body shape, eating very little food, exercising too much, and having very strict habits or routines around food among the signs of an eating disorder, and says to see a GP as soon as you can. Beat's helpline in England is 0808 801 0677, and our eating disorders guide has the other numbers.

Sources 35, 36

Myths

"Face exercises or face yoga slim your face"Mixed evidence

No study has measured face fat after face exercises, and reviews call the evidence for any change insufficient.

Sources 8, 9

"Chewing gum slims your face or builds a jawline"Emerging evidence

In a 6-month trial, chewing gum 3 times a day didn't change jaw muscle thickness or jaw shape; it raised bite force.

Source 10

"You can lose weight from just your face"Strong evidence

Fat can't be targeted from one place, and face fat goes up and down with body fat.

Sources 3, 1

"A puffy face means you've put on fat"Emerging evidence

Puffiness changes within hours: lost sleep and heavy drinking are among the everyday links. Swelling that is new, one-sided or sudden needs a doctor.

Sources 11, 12

"Chin exercises get rid of a double chin"Mixed evidence

No trial we found shows chin or jaw exercises reduce fat under the chin, and reviews of face exercises found no study that measured fat.

Source 9

"A slimmer face always looks younger"Emerging evidence

Fast weight loss took volume from the middle of the face in one small study, and that area thins with age anyway.

Sources 17, 6

Questions people ask

How do I lose face fat?

Lose fat from your whole body: move more, eat a little less if you have weight to lose, strength train, sleep well and drink less alcohol. Face fat goes up and down with your body fat, and you can't choose to lose it from your face first.

Do face exercises reduce face fat?

There's no good evidence they do. No study has measured face fat after face exercises, and reviews in 2014 and 2025 called the evidence for any change insufficient. Our face yoga guide covers what the small studies did find, and how to try it gently.

Does chewing gum slim your face or give you a jawline?

No. In a trial where 58 adults chewed gum 3 times a day for 6 months or didn't, bite force rose, but jaw muscle thickness and jaw shape didn't change.

Why is my face puffy in the morning?

Morning puffiness is usually fluid, not fat, and it often settles as the day goes on. Missing sleep and heavy drinking have been linked with puffier-looking eyes, and salty food can cause fluid build-up. If your face is puffy along with new swelling of your legs or ankles, see a GP.

Why is my face puffy after drinking?

In one survey of women who rated their own faces, drinking 8 or more drinks a week went with more puffiness under the eyes. Keeping within the NHS limit of 14 units a week, spread over 3 or more days, is good for your health anyway.

How do I get rid of a double chin?

A double chin is fat under the chin, sometimes with loose skin, and it shrinks as your overall body fat does. Chin and jaw exercises haven't been shown to reduce it. Injections that destroy fat under the chin have trial evidence, but they are a medical treatment to discuss with a doctor.

How do I lose face fat if I'm already slim?

If you're a healthy weight, much of a full face comes from bone structure, inherited face shape and fat pads that differ from person to person, so dieting isn't a good idea. Faces also change with age: fat in the cheeks tends to thin while fat under the chin increases.

What is "Ozempic face"?

It's a popular name for a face that looks hollower or older after fast weight loss. In one small study of 20 people on these medicines, the middle of the face lost volume as they lost weight, mostly from the fat just under the skin. Our weight-loss guide explains why experts advise strength training while taking these medicines.

What causes face fat?

Mostly your overall body fat, plus age and the face shape you inherited. Rarely, a rounder, red face with new fat on the tummy, neck and upper back and thin arms and legs is Cushing's syndrome, especially if you take steroid medicines: see a GP.

Why is my face puffy on one side?

Swelling on one side isn't fat. Swollen glands under the chin or in the neck usually settle in 1 to 2 weeks; see a GP if they haven't gone down within a week or feel hard. Call 999 if your lips, mouth, throat or tongue suddenly swell.

Why is my face puffy before my period?

The NHS lists bloating among the commonest symptoms before a period, and it settles afterwards. We found no study that has measured facial puffiness across the cycle.

Can I lose face fat in a week?

Not fat: that comes off your whole body at about 0.5 to 1 kg a week at most. Puffiness can change in days with more sleep, less alcohol and less salt.

Sources

  1. Estler 2023 · Cheek fat volume by age, sex and BMI on MRI in 87 adults (imaging study, Plast Reconstr Surg)
  2. Coetzee 2010 · Measurable face shape cues to body weight (study, Perception)
  3. Ramírez-Campillo 2022 · Spot reduction of fat by training one body part: 13 studies, 1,158 people (systematic review and meta-analysis, Hum Mov)
  4. Djordjevic 2016 · Genes, environment and face shape: 3D scans of 1,380 female twins (twin study, PLoS One)
  5. Fernandez 2026 · Deep face fat pads by sex, age and BMI on 63 MRI scans (imaging study, Int J Oral Maxillofac Surg)
  6. Cevik Cenkeri 2020 · Mid-face fat over about 4 years on repeat MRI in 70 adults (imaging study, Dermatol Surg)
  7. Sun 2026 · Face and neck fat by age and BMI on 3D MRI in 47 women (imaging study, Aesthet Surg J Open Forum)
  8. Van Borsel 2014 · Facial exercises for facial rejuvenation: 9 studies (systematic review, Aesthet Surg J)
  9. Seraj 2025 · Face exercises, myofunctional therapy and face massage: 12 studies, 321 women (systematic review, Aesthet Surg J Open Forum)
  10. Jung 2024 · Chewing gum 3 times a day for 6 months: bite force, jaw muscle and jaw shape in 58 adults (RCT, J Oral Rehabil)
  11. Sundelin 2013 · How sleep loss shows in the face: 10 people photographed after normal sleep and 31 hours awake (lab study, Sleep)
  12. Goodman 2019 · Smoking, alcohol and self-rated facial ageing in 3,267 women (online survey, J Clin Aesthet Dermatol)
  13. NHS · Swollen ankles, feet and legs (oedema)
  14. NHS · Cushing's syndrome
  15. NHS · Angioedema
  16. Tinlin 2013 · What ratings of facial fat reflect in young women (three studies, Br J Psychol)
  17. Sharma 2025 · Mid-face volume on scans before and after GLP-1 weight-loss medicines, in 20 patients (retrospective study, Otolaryngol Head Neck Surg)
  18. Hwang 2018 · A mouthpiece face exercise device for 8 weeks in 50 women, without a comparison group (trial, Aesthet Surg J)
  19. Alam 2018 · A 20-week facial exercise programme in middle-aged women (pilot study, research letter, JAMA Dermatol)
  20. NHS · Salt in your diet (past its review date: reviewed April 2023, review due April 2026)
  21. Jones 2016 · Deoxycholic acid injections against placebo for fat under the chin in 506 adults (REFINE-1 phase 3 RCT, Dermatol Surg)
  22. Dayan 2016 · Deoxycholic acid injections for fat under the chin: an overview of the trials (review, Dermatol Surg)
  23. NHS · Overweight and obesity in adults
  24. Jayedi 2024 · Aerobic exercise and weight loss in adults: 116 trials (dose-response meta-analysis, JAMA Netw Open)
  25. Wewege 2022 · Resistance training and body fat, fat mass and visceral fat in healthy adults: 58 studies (meta-analysis, Sports Med)
  26. NHS · Insomnia
  27. NHS · The risks of drinking too much
  28. NHS · Physical activity guidelines for adults aged 19 to 64
  29. NHS · PMS (premenstrual syndrome)
  30. NHS · Swollen glands (past its review date: reviewed September 2023, review due September 2026)
  31. NHS · Steroids
  32. NHS · Underactive thyroid (hypothyroidism)
  33. NHS · Nephrotic syndrome in children (past its review date: reviewed October 2022, review due October 2025)
  34. NHS · Body dysmorphic disorder (BDD) (past its review date: reviewed October 2023, review due October 2026)
  35. NHS · Eating disorders: overview
  36. Beat · Physical activity, exercise and eating disorders

Exercise education, not a personal prescription, and clinical review of these guides is pending. Check with a GP before starting hard training if you have a heart condition, chest pain, dizziness or breathlessness when active, and stop for sharp or increasing pain. Health disclaimer.