metaboliq
Fat under the chin comes off when your body fat as a whole comes down. Neck rolls, chin straps and jawline trainers work muscle, and the body does not take fat from the muscle you happen to be using. Sameer, 34, a software engineer in Hyderabad, spotted his double chin on a stand-up call, with the laptop camera looking up at him from the dining table. He spent a week on neck rolls and got a stiff neck. Sameer is a composite of readers who ask this, not a patient.
For him, as for most people, the chin changes with a small daily calorie gap, protein at every meal and strength work twice a week. Raising the laptop helps the look straight away. How soon the fat itself shrinks depends on where your genes hold on to it longest.
Why does fat collect under the chin?
Pinch the soft part under your jaw and you are holding submental fat. Part of it lies just under the skin. Part lies deeper, under the platysma, a thin sheet of muscle running from the jaw to the collarbones. Gain weight and both layers fill, and the clean line from chin to neck softens into a second curve.
Fat is not the only cause, and it helps to know which one you are dealing with. A panel of dermatologists and plastic surgeons led by Mariwalla listed four changes with age: a slacker platysma, fat sliding lower, bone shrinking back along the jaw, and thinner skin. People of Asian descent, they note, tend to gather volume under the chin, while Europeans show more sagging and neck bands.
A quick test at the mirror tells you a lot. Lift your chin and look straight ahead. If the fullness mostly disappears, posture and loose skin are doing much of the work. If a soft, pinchable pad stays, it is fat. A short or set-back lower jaw is the third possibility; some slim people have a double chin all their lives because the bone gives the skin little to hang from.
Sources: [1]
Can chin exercises or a chin strap burn fat under the chin?
No. When you eat less than you burn, stored fat is released into the blood from many places at once, in an order set mostly by your genes, sex and hormones. Working one muscle does not empty the fat sitting on it. Ramírez-Campillo and colleagues showed this with legs. Eleven young adults trained one leg only, three times a week for three months, with up to 1,200 light leg presses a session. Fat across the body fell a little, yet neither leg changed, the trained one or the resting one. What went came from the arms and trunk.
Chin tucks still have a small place. Sit tall, draw your chin straight back as if making a double chin on purpose, hold for five seconds and repeat ten times. Pressing the tongue hard against the roof of the mouth works the muscles under the jaw too. Firmer muscles there may sharpen the angle a little, though no trial has shown they shift the fat.
Your posture often does more, and faster. With the laptop flat on a dining table, the head drifts forward and down, and the skin under the jaw folds into a roll, even on a slim person. Put the screen at eye level on a stand or a pile of old files, and sit back until your ears are over your shoulders. On the next video call, the second chin often looks much smaller.
Sources: [2]
What does a thick neck say about your health?
Fat around the neck is part of upper-body fat, the kind linked with insulin resistance. Indian studies now use neck size as a quick screening check. Sahay and colleagues measured 183 Indian adults. A wider neck went with higher fasting sugar, higher triglycerides and lower HDL, the good cholesterol, about as well as waist size did.
A study of 400 adults in Jaipur by Moond and Gaur suggested simple cut-offs. A neck of 37 cm or more in men, or 34 cm or more in women, picked out most of the people who had metabolic syndrome. To measure, run a soft tape just below the Adam's apple, keep it level, and do not pull it tight. Sameer's was 39 cm.
The neck also matters for sleep. Fat inside the tongue and throat walls narrows the airway at night, which is part of why loud snoring and sleep apnoea are common with a thick neck. In the same study about a third of people had signs of sleep apnoea, and those with larger necks slept worse. If you snore, wake unrefreshed or nod off at your desk, mention it to a doctor.
How much weight do you need to lose before your chin changes?
Nobody can give you a number in kilos, because fat leaves different bodies in a different order. So measure instead of guessing. Put a soft tape around your neck, just below the Adam's apple, on the first Sunday of every month. Weigh yourself the same mornings. A sensible first goal is 5% of body weight; for Sameer, at 86 kg, that is a little over 4 kg in two to three months.
If the tape has moved at all by the third month, you are on track, even if the mirror disagrees. If the scale has dropped and the neck has not, give it longer; for some people the neck is one of the last places to change. If neither has moved, the deficit is smaller than you think, and the usual culprits are cooking oil, sugar in chai and weekend meals out.
Larger losses reach the deeper fat as well. Sutherland and colleagues in Sydney scanned the throats of 18 adults before weight-loss surgery and six months after, by which time they had lost about 27% of their weight. Fat inside the tongue and throat walls had dropped and the airway had widened. Losing it slowly, with protein and training, keeps the face from looking drawn. That is the aim of Metaboliq plans: to lose up to 20% of body weight over time while keeping the muscle.
Sources: [5]
What about fat-freezing and other chin procedures?
Cosmetic clinics in Indian cities offer several treatments for the chin. The best studied is cryolipolysis, or fat-freezing, which cools a fold of skin and fat until some fat cells die and are cleared over the following weeks. In Kilmer and colleagues' trial, 60 adults had one or two chin sessions. Ultrasound showed the fat layer was about 2 mm thinner 12 weeks later, and blinded doctors could usually tell the before photos from the after.
Two millimetres is a real change, and for a small, stubborn pocket on an otherwise slim person it can be enough. For someone carrying extra weight across the body, it does little to the bigger picture, and it does nothing for fat around the airway or the liver. Liposuction, chin implants, skin-tightening devices and fat-dissolving shots each suit different problems, and Mariwalla's panel stresses matching the treatment to the cause.
If loose skin or jaw shape is the main issue, a dermatologist or plastic surgeon is the right person to see. If the fullness came on with general weight gain, it makes sense to lose the weight first and judge what is left afterwards.
How do you slim your chin without losing muscle?
Start with the plate. Put a protein food in every meal: a katori of dal, a bowl of curd, paneer, eggs, chicken or fish. Most vegetarian lunches run short, so add a second one, such as chana in the sabzi or a glass of chaas. Then take out the easy calories. For Sameer that was the office biscuits with his 4 pm chai, the second roti at dinner and the Friday biryani order, which together came to around 400 calories a day.
Then add strength work twice a week. A gym is fine, but squats, push-ups against a wall and rows with a backpack full of books will do at home. Weinheimer's review of 52 studies in adults over 50 shows why this matters. When people dieted without exercise, at least 15% of the weight they lost was lean tissue in 81% of groups. When exercise was added, that fell to 39% of groups.
Protein matters as much as the training. In Longland's trial at McMaster University, young men ate 40% below their needs for four weeks while training hard. The higher-protein group gained 1.2 kg of lean mass and lost 4.8 kg of fat. The lower-protein group held their lean mass level and lost 3.5 kg of fat.
If after a month you feel weak on the stairs or your workouts are getting harder, eat a little more and keep the protein. Losing half a kilo a week with your strength intact will do more for your jawline than losing a kilo a week and looking tired.