What No One Tells You About Weight & Fat Loss

Updated on May 14, 2026

You have been told that losing weight will make you happier, healthier, and more confident. And for many people, it does.

But there's another side to this story. One that doesn't get talked about enough.

Let's look at what the research actually says.

Losing weight doesn't equal happiness

According to a study, people who lost weight were twice as likely to be depressed as those who gained or maintained their weight ^[1].

Sounds counterintuitive, doesn't it? But it's real. Weight loss, especially significant weight loss, can bring emotional challenges that no one prepares you for, such as identity shifts, loose skin and sometimes, a lingering dissatisfaction that wasn't there before.

If you're struggling, you are not alone. And getting qualified help, whether from a counsellor, a support group, or a doctor who understands, is not a sign of weakness.

Your tastes actually change

Here's something fascinating.

People who are obese tend to have reduced taste sensitivity. This partly explains why some individuals in this category eat more, not because they lack willpower, but because their focus shifts from flavour and quality to quantity ^[2].

Dr John Morton, Stanford University's chief of bariatric surgery, discovered that in people who lose weight, their desire for salty food significantly declines ^[2].

So, if you find yourself reaching for the salt shaker less often after weight loss? That's not in your head. That's biology.

You'll need more sweaters

Losing about 10% of one's weight slows metabolism, making one more sensitive to cold. When the fat comes off, so does the insulation ^[3].

Don't be surprised, and keep that sweater handy in case it's needed.

Your memory improves

This is a lesser-known benefit.

Interestingly, a Swedish study found that losing weight improves memory. The study, conducted as memory tests, examined obese women and found that losing about 8 kg significantly improved their scores ^[4].

Another study of patients who underwent bariatric surgery showed notable improvements in memory just 3 months after their procedure.

So weight loss doesn't just change your body. It potentially changes your brain.

You'll sleep better

Losing weight can lead to more energy, as one does not have to lug around excess weight.

Consequently, the individual may be more active throughout the day. According to research, this culminates in better sleep ^[5].

You might look older

Here is the trade-off that no one likes to talk about. Fat plumps the skin, especially around the face, resulting in a much more youthful appearance.

Losing weight and fat may result in a more aged appearance, though treatments can help one look younger today ^[6].

The good news is that there are treatments available today to restore facial volume, such as facial fat grafting, without reversing your weight loss.

You may become obsessed with the number on the weighing scale

The success of weight loss may also lead to an unhealthy preoccupation, an obsession ^[7].

Watching the numbers on the weighing scale go down is exciting. It feels like progress, but it can also become a trap where the fear of the weight going up takes over your thoughts.

This can lead to anxiety, stress and even depression, so if you notice yourself weighing multiple times a day, take a step back.

Your cardiovascular health improves tremendously

Weight loss can improve cardiovascular health and enhance a person's well-being ^[8].

Losing weight also helps to better manage conditions such as hypertension or high cholesterol.

Excess skin, lots of excess skin, if you…

…lose weight too fast! Weight gain and the ageing process can weaken protein fibres ^[9].

These fibres, elastin and collagen, give the skin its firmness, strength and elasticity.

When they are weakened, the skin cannot retract well after weight loss. This results in excess skin.

You are healthy, from within (where it actually matters!)

Genetics play a significant role in how and where your body loses fat ^[10]. 2 people can follow the exact same diet and exercise plan, but their results can look completely different.

Spot exercises do not really help in many cases, so the critical thing to remember is that weight loss should primarily be effective enough to make the individual healthier, above all else.

It is worth noting that fat cells shrink with weight loss but do not disappear. If you increase your calorie intake significantly, those same fat cells will expand again.

Don't confuse weight loss with fat loss

Fat loss and weight loss are not the same thing. Fat loss, as the name implies, involves the loss of fat explicitly.

Weight loss encompasses a broader range, including decreased body weight, muscle, water, and fat.

The terms are often used interchangeably, which creates confusion. Many people assume that losing weight automatically means losing stubborn fat. Unfortunately, that is not true.

Factors such as genetics, age, gender and hormones play a huge role in where fat accumulates in the body.

Even massive weight loss does not necessarily eliminate stubborn fat pockets such as those on your flanks, belly, inner thighs or under your chin.

As such, even massive weight loss does not necessarily help lose stubborn fat.

That is where targeted solutions come in.

Fat Loss: Liposuction with MDC-Sculpt®️ Lipo Technique

What diet and exercise cannot eliminate, Modern Liposuction with MDC-Sculpt®️ Lipo Technique can address efficiently.

A proprietary technique designed by Dr Ivan Puah, this minimally invasive liposuction and body contouring procedure gently removes excess fat pockets permanently while minimising scarring and downtime.

The procedure is tailored to your unique fat distribution, skin elasticity and body type. The result is a slimmer silhouette with a natural-looking contour.

Liposuction is not a weight loss solution

Lipo is popular amongst men and women looking to correct disproportionate body shape and improve body contour.

The ideal candidate is someone close to their ideal body weight but struggling with localised, diet-resistant fat pockets.

The Ministry of Health (MOH) guidelines in Singapore do not permit the display of before-and-after images in public, including across all social media platforms such as emails, Instagram, blogs, websites, etc.

However, during a private one-on-one consultation with Dr Ivan Puah, you will be able to view anonymised images of actual patients who have undergone the procedure.

These are shared for educational reference, so you can visualise potential outcomes and set realistic expectations.

Doctor-led weight loss solution: Multi-pronged strategy

Research revealed that fitness alone usually leads to only a maximum weight loss of about 3%, while combining diet and exercise can result in a weight loss of 5% to 15%. The greatest weight loss, averaging 11.85%, was observed with a combination of exercise, diet, and GLP-1 medications ^{[11, 12]}.

1. Jackson, S. E., Steptoe, A., Beeken, R. J., Kivimaki, M., & Wardle, J. (2014). Psychological changes following weight loss in overweight and obese adults: a prospective cohort study. PLoS One, 9(8), e104552.
2. Morton J et al. A1007: Does Taste Perception Affect Obesity? Presented at: Obesity Week 2014; Nov. 2-7, 2014; Boston.
3. Cronise RJ, Sinclair DA, Bremer AA. The "metabolic winter" hypothesis: a cause of the current epidemics of obesity and cardiometabolic disease. Metab Syndr Relat Disord. 2014 Sep;12(7):355-61. doi: 10.1089/met.2014.0027. Epub 2014 Jun 11. PMID: 24918620; PMCID: PMC4209489.
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6. https://www.health.harvard.edu/staying-healthy/why-your-face-ages-and-what-you-can-do
7. Miller, A. (2014, December 1). Losing weight, but not healthy. Monitor on Psychology, 45(11). https://www.apa.org/monitor/20... RR, Lang W, Wadden TA, Safford M, Knowler WC, Bertoni AG, Hill JO, Brancati FL, Peters A, Wagenknecht L; Look AHEAD Research Group. Benefits of modest weight loss in improving cardiovascular risk factors in overweight and obese individuals with type 2 diabetes. Diabetes Care. 2011 Jul;34(7):1481-6. doi: 10.2337/dc10-2415. Epub 2011 May 18. PMID: 21593294; PMCID: PMC3120182.
8. Baumann L, Bernstein EF, Weiss AS, Bates D, Humphrey S, Silberberg M, Daniels R. Clinical Relevance of Elastin in the Structure and Function of Skin. Aesthet Surg J Open Forum. 2021 May 14;3(3):ojab019. doi: 10.1093/asjof/ojab019. PMID: 34195612; PMCID: PMC8239663.
9. Bojarczuk A, Egorova ES, Dzitkowska-Zabielska M, Ahmetov II. Genetics of Exercise and Diet-Induced Fat Loss Efficiency: A Systematic Review. J Sports Sci Med. 2024 Mar 1;23(1):236-257. doi: 10.52082/jssm.2024.236. PMID: 38455434; PMCID: PMC10915602.
10. Müller MJ, Bosy-Westphal A, Heymsfield SB. Is there evidence for a set point that regulates human body weight? F1000 Med Rep. 2010 Aug 9;2:59. doi: 10.3410/M2-59. PMID: 21173874; PMCID: PMC2990627.
11. Wen, W., & Turrigiano, G. G. (2024). Keeping your brain in balance: homeostatic regulation of network function. Annual review of neuroscience, 47.