Weight gain with age is a common phenomenon experienced by many people worldwide, including those living in Singapore. As we age, our bodies tend to undergo changes that can lead to weight gains, such as decreased metabolism, hormonal changes, and reduced physical activity. In this article, we will explore weight gain with an age chart in Singapore and discuss ways to manage weight gain as we age.
Crude prevalence (%) of obesity among Singapore residents aged 18 to 74 years by age group, gender, highest education attained, and ethnic group, 2010, 2013, 2017, and 2019-2020
According to a study conducted by the National Health Survey in Singapore, the crude prevalence of obesity during the period 2019-2020 had returned to the previous level seen in 2010 (10.5%) after a slight decrease in 2013 (8.6%) and 2017 (8.6%). Increases in obesity prevalence between 2017 and 2019-2020 were mostly among older adults aged 50 to 74 years, males, and Malays. This increase in weight gain with age has been attributed to several factors, including sedentary lifestyles, unhealthy diets, and changes in work patterns that lead to decreased physical activity. The chart shows that the percentage of overweight and obese individuals increases with age. This trend highlights the importance of managing weight gain as we age to prevent developing chronic diseases such as diabetes, hypertension, and cardiovascular disease.
Individual results vary considerably, but research on ageing and body composition points to some broad patterns by life stage:
| Age Range | What Typically Happens |
| 20s – 30s | Muscle mass and metabolism are generally at their peak; gradual muscle loss (sarcopenia) tends to begin around age 30 |
| 40s – 50s | Muscle loss continues (roughly 3–8% per decade); hormonal changes – menopause in women, declining testosterone in men – often shift fat storage toward the abdomen |
| 60s and beyond | Muscle loss can accelerate further, and reduced activity levels often compound the effect on metabolism |
This is a general pattern, not a prediction for any individual – genetics, lifestyle, medical history, and activity levels all play a significant role in how (and whether) any one person’s weight changes with age.
A few interconnected biological changes explain most age-related weight gain:
Muscle loss (sarcopenia). Starting around age 30, the body gradually loses muscle mass – commonly cited at roughly 3–8% per decade, accelerating further after 60. Since muscle tissue burns more calories at rest than fat tissue, less muscle means a lower basal metabolic rate (BMR), meaning your body needs fewer calories just to maintain its current weight than it used to.
Hormonal changes. Declining oestrogen in women (particularly around menopause) and declining testosterone in men are both associated with a shift toward increased abdominal (visceral) fat, along with further muscle loss. These hormonal shifts also affect insulin sensitivity, appetite regulation, and sleep – all of which can indirectly influence weight.
Reduced physical activity. Activity levels often decline with age due to work patterns, physical limitations, or lifestyle changes, compounding the metabolic slowdown from muscle loss.
Underlying medical conditions. In some cases, conditions like hypothyroidism can contribute to weight gain and become more common with age – this is worth ruling out with a doctor if weight gain feels disproportionate to your diet and activity level.
As we age, our metabolism slows down, and our body composition changes, which can lead to weight gain. However, there are many common myths about weight gain as we age that are not entirely accurate. Here are some of the most common myths about weight gain as we age:
While it is true that many people do gain weight as they get older, it is not inevitable. Lifestyle factors such as diet and exercise play a major role in weight gain, and with proper attention to these factors, it is possible to maintain a healthy weight throughout your life.
While it may be more challenging to lose weight as you get older, it is certainly not impossible. With a healthy diet and regular exercise, it is possible to lose weight at any age.
While it may be more difficult to build muscle as you get older, it is certainly not impossible. Regular strength training exercises can help build muscle mass and improve overall health and fitness.
While it is true that your metabolism slows down as you age, it does not slow down so much that weight loss is impossible. With a healthy diet and regular exercise, it is still possible to lose weight and maintain a healthy weight.
While it is true that your calorie needs may decrease as you age due to changes in metabolism and activity level, it is not necessary to eat significantly less to maintain a healthy weight. Instead, it is important to focus on eating a healthy and balanced diet that provides all the nutrients your body needs.
Weight gain with age is a common phenomenon that can lead to the development of chronic diseases and other health concerns. To manage weight gain as we age, it’s essential to maintain a healthy diet, stay physically active, get enough sleep, manage stress, and seek medical advice if necessary. By making these lifestyle changes, we can improve our overall health and well-being as we age.
So, what can we do to manage weight gain as we age? The following are some tips that can help:
In addition to these tips, several weight loss programs and products are available that can help with weight management. These include meal delivery services, weight loss supplements, and fitness programs. However, it’s essential to research and consult with a healthcare professional before trying any weight loss program or product.
Gradual weight changes over years are common with ageing, but it’s worth checking in with a doctor if you notice:
A doctor can check for underlying conditions and help tailor an approach that fits your specific health profile, rather than relying on general advice alone.
Many people do, largely due to a combination of muscle loss, hormonal changes, and reduced activity – though it’s not inevitable, and lifestyle factors play a significant role.
Mainly due to age-related muscle loss (sarcopenia) lowering metabolic rate, hormonal shifts (like menopause or declining testosterone) redistributing fat toward the abdomen, and often reduced physical activity.
No – it can be more challenging due to metabolic changes, but weight loss remains achievable with an appropriate diet and consistent exercise, including strength training.
Research suggests an average of around 1–2 pounds (0.5–1kg) per year in adulthood, though this varies significantly by individual and lifestyle.
Yes – building or maintaining muscle mass through resistance training directly counters the metabolic slowdown caused by age-related muscle loss.
Weight gain with age is a common, well-understood pattern driven mainly by gradual muscle loss, hormonal shifts, and often reduced activity levels – not an unavoidable fate. Singapore’s own health data shows this trend clearly among older adults, underscoring why proactive habits like strength training, adequate protein intake, and regular activity matter more, not less, as we get older. If you’re concerned about weight changes or want a personalised plan, doctors on the MaNaDr app can help you build an approach suited to your age, health history, and goals.
