In 2023, the highest percentage of obese men aged 20 and over in Japan was 35 percent among those in their sixties. Overall, the share of obese men across all age groups stood at 31.5 percent.

Japan JP: Prevalence of Overweight: Weight for Height: Female: % of Children Under 5 data was reported at 1.100 % in 2010. Japan JP: Prevalence of Overweight: Weight for Height: Female: % of Children Under 5 data is updated yearly, averaging 1.100 % from Dec 2010 (Median) to 2010, with 1 observations. Japan JP: Prevalence of Overweight: Weight for Height: Female: % of Children Under 5 data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Japan – Table JP.World Bank: Health Statistics. Prevalence of overweight, female, is the percentage of girls under age 5 whose weight for height is more than two standard deviations above the median for the international reference population of the corresponding age as established by the WHO's new child growth standards released in 2006.; ; World Health Organization, Global Database on Child Growth and Malnutrition. Country-level data are unadjusted data from national surveys, and thus may not be comparable across countries.; Linear mixed-effect model estimates; Estimates of overweight children are also from national survey data. Once considered only a high-income economy problem, overweight children have become a growing concern in developing countries. Research shows an association between childhood obesity and a high prevalence of diabetes, respiratory disease, high blood pressure, and psychosocial and orthopedic disorders (de Onis and Blössner 2003). Childhood obesity is associated with a higher chance of obesity, premature death, and disability in adulthood. In addition to increased future risks, obese children experience breathing difficulties and increased risk of fractures, hypertension, early markers of cardiovascular disease, insulin resistance, and psychological effects. Children in low- and middle-income countries are more vulnerable to inadequate nutrition before birth and in infancy and early childhood. Many of these children are exposed to high-fat, high-sugar, high-salt, calorie-dense, micronutrient-poor foods, which tend be lower in cost than more nutritious foods. These dietary patterns, in conjunction with low levels of physical activity, result in sharp increases in childhood obesity, while under-nutrition continues

Differences in the prevalence of thinness, normal weight, overweight including obesity in East Asian children and adolescents between 2010 and 2022.

Simple linear regression analysis on the prevalence of weight groups (thinness, normal weight, overweight, obesity) from 2010 to 2022 by country.

As of November 2019, approximately 22.3 percent of female adults in Japan aged 20 years and older were overweight according to the body max index (BMI) classification, a slight increase from around 19.6 percent in the previous year. About 33 percent of Japanese men were classified as overweight, as revealed in the same survey.

Japan JP: Prevalence of Overweight: Weight for Height: % of Children Under 5, Modeled Estimate data was reported at 2.000 % in 2024. This records an increase from the previous number of 1.900 % for 2023. Japan JP: Prevalence of Overweight: Weight for Height: % of Children Under 5, Modeled Estimate data is updated yearly, averaging 1.500 % from Dec 2000 (Median) to 2024, with 25 observations. The data reached an all-time high of 2.000 % in 2024 and a record low of 1.500 % in 2017. Japan JP: Prevalence of Overweight: Weight for Height: % of Children Under 5, Modeled Estimate data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Japan – Table JP.World Bank.WDI: Social: Health Statistics. Prevalence of overweight children is the percentage of children under age 5 whose weight for height is more than two standard deviations above the median for the international reference population of the corresponding age as established by the WHO's 2006 Child Growth Standards.;UNICEF, WHO, World Bank: Joint child Malnutrition Estimates (JME).;Weighted average;Once considered only a high-income economy problem, overweight children have become a growing concern in developing countries. Research shows an association between childhood obesity and a high prevalence of diabetes, respiratory disease, high blood pressure, and psychosocial and orthopedic disorders (de Onis and Blössner 2003). Childhood obesity is associated with a higher chance of obesity, premature death, and disability in adulthood. In addition to increased future risks, obese children experience breathing difficulties and increased risk of fractures, hypertension, early markers of cardiovascular disease, insulin resistance, and psychological effects. Children in low- and middle-income countries are more vulnerable to inadequate nutrition before birth and in infancy and early childhood. Many of these children are exposed to high-fat, high-sugar, high-salt, calorie-dense, micronutrient-poor foods, which tend be lower in cost than more nutritious foods. These dietary patterns, in conjunction with low levels of physical activity, result in sharp increases in childhood obesity, while under-nutrition continues. Estimates are modeled estimates produced by the JME. Primary data sources of the anthropometric measurements are national surveys. These surveys are administered sporadically, resulting in sparse data for many countries. Furthermore, the trend of the indicators over time is usually not a straight line and varies by country. Tracking the current level and progress of indicators helps determine if countries are on track to meet certain thresholds, such as those indicated in the SDGs. Thus the JME developed statistical models and produced the modeled estimates.

According to a survey conducted in November 2023, most women in Japan were within the normal range of the body mass index (BMI). Around 69.7 percent of female respondents in the age group 30 to 39 years were of normal weight in terms of BMI, while about 12.4 percent were overweight. Weights control in Japan The majority of deaths in recent Japanese society are caused by lifestyle diseases. In order to reduce the number of deaths from lifestyle diseases, the Japanese government implemented a new annual metabolic syndrome examination in 2008 for citizens aged over 40 years old. People who are classified as having metabolic syndrome or pre-metabolic syndrome at the examination receive advice and support from a nutritionist to improve their diet and lifestyle habits. The government also introduced a new license Tokuho in 1991 for food and beverages that contain ingredients that can have a positive influence on the physiological function. Major companies in Japan currently produce a lot of food and drink products that can meet the requirement of the license. Despite those measures, the share of people in Japan that are classified as overweight has not fluctuated much in recent years. As of 2019, close to 32 percent of Japanese men were classified as obese. Underweight among young women In contrast to the people categorized as overweight, young female Japanese are facing an underweight problem. According to the survey, approximately 24 percent of women in their twenties and 18.3 percent of girls below 20 years old were reported as being underweight. The Japanese health ministry pointed out that the dissemination of beauty standards in society and media, alongside the flooded information about diet methods, are facilitating young Japanese women’s desire to be “thin.” To reduce the risk of health disorders, such as amenorrhea and osteoporosis among women, the government has set the goal of less than 15 percent of the female population under 30 years old to be underweight by 2032.

More than half (54%) of adults in Santa Clara County are overweight or obese. The percentage is higher among Asian Indian (52%) and Japanese (40%) adults compared to Vietnamese (27%) and Chinese (26%) adults.

Japan Prevalence of Overweight: % of Adults data was reported at 27.200 % in 2016. This records an increase from the previous number of 26.800 % for 2015. Japan Prevalence of Overweight: % of Adults data is updated yearly, averaging 19.650 % from Dec 1975 (Median) to 2016, with 42 observations. The data reached an all-time high of 27.200 % in 2016 and a record low of 14.900 % in 1975. Japan Prevalence of Overweight: % of Adults data remains active status in CEIC and is reported by World Bank. The data is categorized under Global Database’s Japan – Table JP.World Bank.WDI: Social: Health Statistics. Prevalence of overweight adults is the percentage of adults ages 18 and over whose Body Mass Index (BMI) is more than 25 kg/m2. Body Mass Index (BMI) is a simple index of weight-for-height, or the weight in kilograms divided by the square of the height in meters.;World Health Organization, Global Health Observatory Data Repository (http://apps.who.int/ghodata/).;;

Japan Bariatric Surgery Market size was valued at USD 37.5 Billion in 2023 and is projected to reach USD 75.1 Billion by 2031 growing at a CAGR of 7.2% from 2024 to 2031.

Key Market Drivers:

Rising Obesity Rates and Associated Health Complications: According to the Japanese Ministry of Health, Labour and Welfare, the obesity rate among Japanese people (with a BMI more than 25) is continuously rising.

Advancing Healthcare Technology and Minimally Invasive Surgical Techniques: The Japan Society for Endoscopic Surgery reports that the number of minimally invasive bariatric surgeries increasing by 45% between 2018 and 2022.

Snapshot img

Weight Management Market Size 2024-2028

The weight management market size is forecast to increase by USD 103.8 billion at a CAGR of 10.87% between 2023 and 2028.

The market is witnessing significant growth due to rising obesity rates, particularly in developed and developing economies. The increasing prevalence of sedentary lifestyles, coupled with the influence of social media platforms promoting unhealthy food choices, is fueling this trend. The fast-food industry's continuous expansion and the availability of convenient yet calorie-dense options further exacerbate the issue. Key health concerns, such as cardiovascular diseases, diabetes, hormonal problems, and certain cancers, are associated with obesity. As a result, consumers are seeking effective solutions, leading to a rise in demand for diet meals, beverages, and supplements. This trend is expected to continue, as chronic diseases linked to obesity pose a significant threat to public health. The market is also witnessing innovative marketing strategies and personalized approaches to cater to the diverse needs of consumers. Despite these opportunities, challenges remain, including regulatory hurdles and consumer skepticism towards weight loss solutions.

What will be the Size of the Market During the Forecast Period?

Request Free Sample

The market encompasses a range of products and services aimed at helping individuals maintain a healthy body weight and improve overall wellness. Obesity, driven by sedentary lifestyles and unhealthy dietary choices, remains a significant global health concern, fueling market growth. Chronic diseases, such as diabetes, hypertension, orthopedic diseases, and cardiovascular diseases, are often associated with obesity and create a strong demand for solutions. 
Additionally, hormonal problems and childhood obesity contribute to market expansion. Preventive health measures, including healthy eating habits, daily physical activities, and services, are increasingly popular. Social media plays a role in promoting weight loss trends, from bariatric surgeries to protein powders and fitness programs. The young population and the Gen X and baby boomer generations are key demographics, as they seek to maintain a healthy weight and address age-related health concerns.

How is this Weight Management Industry segmented and which is the largest segment?

The report provides comprehensive data (region-wise segment analysis), with forecasts and estimates in 'USD billion' for the period 2024-2028, as well as historical data from 2018-2022 for the following segments.

Type

  Diet
  Equipment
  Services


Distribution Channel

  Offline
  Online


Geography

  North America

    US


  Asia

    China
    Japan


  Europe

    Germany
    UK


  Rest of World (ROW)

By Type Insights

The diet segment is estimated to witness significant growth during the forecast period.

The market is driven by the increasing prevalence of obesity and related health conditions, including hypertension, diabetes, and orthopedic diseases. Sedentary lifestyles and the consumption of junk food and fast-food contribute to obesity, affecting over one-third of the global population. Obesity can lead to chronic diseases, such as cardiovascular diseases and certain types of cancer. The market includes various segments, such as diet meals, beverages and supplements, exercise, surgical procedures, and services. Digitalization has led to the growth of online sales, ready-to-drink beverages, bars, gels, and powders. Lifestyle changes, including healthy eating habits and daily physical activities, are essential for maintaining a healthy body weight.

Weight management programs and innovative weight-management products, such as functional beverages, functional food, and dietary supplements, offer prevention and consultation services. The market is expected to grow due to the increasing awareness of weight-related health issues and the desire for a healthy immune system among the young population and Gen X and baby boomer generations.

Get a glance at the market report of the share of various segments Request Free Sample

The diet segment was valued at USD 84.90 billion in 2018 and showed a gradual increase during the forecast period.

Regional Analysis

Asia is estimated to contribute 36% to the growth of the global market during the forecast period.

Technavio's analysts have elaborately explained the regional trends and drivers that shape the market during the forecast period.

For more insights on the market size of various regions, Request Free Sample

The market in North America is currently the largest global segment, driven by increasing consumer focus on healthier lifestyles and obesity concerns. With over 35% of American adults classified as obese in 2022, according to the Centers for Disease Control and Prevention (CDC), the US market dominates th

During the surveyed period in 2019, over 39.7 percent of Japanese male respondents in the age group 40 to 49 years were classified as overweight according to the Body Mass Index (BMI). Approximately 23.1 percent of respondents aged 20 to 29 were classified as overweight.

ObjectiveTo establish effective methods of obesity prevention among young adults, we analyzed the relationship between obesity-related food intake and metabolic factors in Japanese university students.MethodsWe performed a cross-sectional analysis of nutrient intake information and metabolic parameters among 1,206 Gifu University students categorized by body mass index.ResultsThe overweight/obesity rate was significantly higher in males. Additionally, among males, the intake of protein, potassium, magnesium, phosphorus, iron, zinc, all lipids/fats, and all metabolic parameters including blood sugar, hemoglobin A1c, uric acid, alanine aminotransferase, aspartate aminotransferase, low-density lipoprotein, high-density lipoprotein, triglycerides, and blood pressure significantly differed between the obese and non-obese groups. However, the same comparison among females revealed no significant differences in nutrient intake and significant differences in only half of the parameters. Among males, energy intake from protein and fat was significantly higher in the obese group, while the percentage of total energy intake from carbohydrates and fat was lower and higher, respectively, among females in the obese group.ConclusionsOvereating of protein and fat in males and unbalanced nutrition in females are sex-specific characteristics of Japanese university students with obesity, and metabolic abnormalities in students with obesity are more remarkable in males than in females.

During the surveyed period in 2019, approximately 26.4 percent of Japanese women aged 70 years or older were classified as overweight according to the Body Mass Index (BMI). By contrast, only about 2.5 percent of respondents in the age group 15 to 19 years were overweight.

Introduction: The psychosocial background of subjects with severe obesity developed from childhood onset obesity (CO) and their outcomes after bariatric surgery have not been fully investigated. Methods: 305 subjects were enrolled in the J-SMART study, which examined the effects of laparoscopic sleeve gastrectomy (LSG) in Japan, and categorized into two groups: CO defined as onset up to 13 years of age (CO group) and post-puberty onset obesity defined as onset after 13 years of age (PPO group). The subjects were followed up for at least 2 years and up to 5 years after LSG. Changes in physical parameters and remission of obesity-related comorbidities were assessed at 2 years after LSG. Weight regain (WR) was also assessed by evaluating the nadir weight after LSG and maximum weight thereafter during follow-up period. Results: The mean postoperative follow-up period was 3.0 ± 1.1 years. 40.0% of the subjects had CO and these subjects had higher BMI and HOMA-β, and lower age, HbA1c, HDL cholesterol, and visceral/subcutaneous fat area ratio compared to those with PPO. The CO group was also characterized by having higher rates of mental retardation, developmental disorders and obesity in either parent, and lower rate of marriage compared to the PPO group. Two years after LSG, there were no differences in total weight loss and remission rates of diabetes, dyslipidemia and sleep apnea syndrome between the two groups, although remission rate of hypertension was higher in the CO group. The CO group also had a higher rate of WR after LSG than the PPO group, with CO, BMI, mental disorder and binge eating contributing to WR. Conclusion: This study suggests that CO might be associated with genetic and psychosocial factors. CO and PPO probably differ in pathogenesis and may require different treatment strategies.

肥胖的普遍性：高度重量：五岁以下儿童的百分比（根据模型估算）在12-01-2024达2.000%，相较于12-01-2023的1.900%有所增长。肥胖的普遍性：高度重量：五岁以下儿童的百分比（根据模型估算）数据按年更新，12-01-2000至12-01-2024期间平均值为1.500%，共25份观测结果。该数据的历史最高值出现于12-01-2024，达2.000%，而历史最低值则出现于12-01-2017，为1.500%。CEIC提供的肥胖的普遍性：高度重量：五岁以下儿童的百分比（根据模型估算）数据处于定期更新的状态，数据来源于World Bank，数据归类于全球数据库的日本 – Table JP.World Bank.WDI: Social: Health Statistics。

肥胖的普遍性：占成人百分比在12-01-2016达27.200%，相较于12-01-2015的26.800%有所增长。肥胖的普遍性：占成人百分比数据按年更新，12-01-1975至12-01-2016期间平均值为19.650%，共42份观测结果。该数据的历史最高值出现于12-01-2016，达27.200%，而历史最低值则出现于12-01-1975，为14.900%。CEIC提供的肥胖的普遍性：占成人百分比数据处于定期更新的状态，数据来源于World Bank，数据归类于全球数据库的日本 – Table JP.World Bank.WDI: Social: Health Statistics。

This statistic shows the prevalence of overweight and obesity among adults in OECD countries as of 2015. In Japan, less than four percent of adults were classified as obese. In comparison, the percentage for adults in the United States was about 38 percent.

The share of obese adults in New Zealand was projected to account for ** percent of the country's population by 2035. Singapore, Japan, and Vietnam were projected to have the lowest obesity rates in the Asia-Pacific region, with obese adults in each of the countries set to account for less than *** percent of their total populations in 2035.

In 2024, around 59 percent of adults in Mexico stated that they believed obesity was the biggest health problem facing people in their country, while in Japan only eight percent of adults stated the same. This statistic illustrates the percentage of adults worldwide who stated that obesity was the biggest health problem facing people in their country in 2024.