In 2023, Japanese women who were ** years old were the age group with the highest average body weight, amounting to 57.9 kilograms. Women aged 26 to 29 years old had an average body weight of 52.8 kilograms.

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.

PERIOD: Japan proper and South Sakhalin. 1928-1931. By region, 1931. NOTE: (In grams). SOURCE: [Statistical Abstract of Conscription].

PERIOD: Japan proper and South Sakhalin. 1917-1927. By region, 1927. NOTE: Excluding Sakhalin up to 1924. SOURCE: [Statistical Abstract of Conscription].

PERIOD: Japan proper and South Sakhalin. By region, 1933. Average weight, 1926-1933. SOURCE: [Statistical Abstract of Conscription].

Prevalence of thinness, normal weight, overweight and obesity in East Asian children and adolescents in 2022.

PERIOD: Japan proper and South Sakhalin. By region, 1934. Average weight, 1926-1934. SOURCE: [Reports by the Army Ministry].

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

Snapshot img

Smart Weight, Body Composition, And BMI Scales Market Size 2025-2029

The smart weight, body composition, and bmi scales market size is forecast to increase by USD 115.7 million, at a CAGR of 5.3% between 2024 and 2029.

The market is experiencing significant growth, driven by the rising health consciousness among individuals. This trend is fueled by the increasing awareness of the importance of maintaining a healthy weight and body composition. Another key factor propelling market expansion is the innovative features offered by smart scales, such as pregnancy mode, which cater to specific user needs. However, the market faces challenges as well. The proliferation of alternative smart wearable devices and applications poses a threat to the market, as consumers have an abundance of choices for tracking their health metrics. Companies in this market must differentiate themselves by offering unique features and integrating seamlessly with other health and fitness platforms to attract and retain customers. To capitalize on opportunities and navigate challenges effectively, market players should focus on continuous innovation, user-centric design, and strategic partnerships.

What will be the Size of the Smart Weight, Body Composition, And BMI Scales Market during the forecast period?

Explore in-depth regional segment analysis with market size data - historical 2019-2023 and forecasts 2025-2029 - in the full report.
Request Free SampleThe smart weight and body composition scale market continues to evolve, driven by advancements in technology and shifting consumer preferences. These devices offer more than just basic weight measurement, providing insights into body composition, muscle mass, body water, bone density, and visceral fat. The market caters to various sectors, including disease prevention, fitness tracking, and health data management. Smart scales integrate user-friendly interfaces and Bluetooth connectivity for seamless data synchronization with mobile apps, allowing for real-time health monitoring and analysis. Marketing strategies focus on personalized feedback, privacy compliance, and user experience (UX) to attract and retain customers. Differentiation comes from features like segmental body composition analysis, dietary analysis, health coaching, and wellness programs. Regulatory compliance, safety standards, and data security are essential considerations, ensuring the protection of sensitive health information. The market's growth potential is significant, with retail sales and online sales contributing to its expansion. Wellness improvement and weight management remain key applications, while pricing strategies and product differentiation influence market penetration. Manufacturing costs, distribution channels, and software updates impact the competitive landscape. As technology advances, smart scales continue to offer more comprehensive health assessments, integrating with smartphones, wearables, and cloud storage for enhanced functionality and convenience.

How is this Smart Weight, Body Composition, And BMI Scales Industry segmented?

The smart weight, body composition, and bmi scales industry research report provides comprehensive data (region-wise segment analysis), with forecasts and estimates in 'USD million' for the period 2025-2029, as well as historical data from 2019-2023 for the following segments. Distribution ChannelOfflineOnlinePriceLess than USD100More than USD100TypeWi-FiBluetoothApplicationHouseholdGymOthersGeographyNorth AmericaUSCanadaMexicoEuropeFranceGermanyItalyRussiaAPACChinaJapanSouth KoreaRest of World (ROW)

By Distribution Channel Insights

The offline segment is estimated to witness significant growth during the forecast period.The market for smart weight, body composition, and BMI scales has seen substantial growth in recent years, with both online and offline channels experiencing significant demand. Online sales enable consumers to purchase these advanced scales from the comfort of their homes, while offline retail outlets provide an opportunity for customers to physically assess the product before making a purchase. Offline channels, including specialty health stores, department stores, hypermarkets, and fitness equipment stores, are particularly effective in reaching a broad consumer base. These retailers often have dedicated sections for health and wellness products, showcasing smart scales alongside other related items. User interface and experience, marketing strategies, data synchronization, Bluetooth connectivity, and sensor technology are integral features of these devices, catering to consumers seeking health risk assessments, muscle mass measurement, segmental body composition analysis, and health data management. Wellness programs, health coaching, body water monitoring, smartphone integration, and personalized feedback are additional features that attract consumers. Regulatory

Japan JP: Prevalence of Stunting: Height for Age: % of Children Under 5, Modeled Estimate data was reported at 5.200 % in 2024. This records an increase from the previous number of 5.100 % for 2023. Japan JP: Prevalence of Stunting: Height for Age: % of Children Under 5, Modeled Estimate data is updated yearly, averaging 6.200 % from Dec 2000 (Median) to 2024, with 25 observations. The data reached an all-time high of 6.900 % in 2009 and a record low of 5.100 % in 2023. Japan JP: Prevalence of Stunting: Height for Age: % 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 stunting is the percentage of children under age 5 whose height for age is more than two standard deviations below the median for the international reference population ages 0-59 months. For children up to two years old height is measured by recumbent length. For older children height is measured by stature while standing. The data are based on the WHO's 2006 Child Growth Standards.;UNICEF, WHO, World Bank: Joint child Malnutrition Estimates (JME).;Weighted average;Undernourished children have lower resistance to infection and are more likely to die from common childhood ailments such as diarrheal diseases and respiratory infections. Frequent illness saps the nutritional status of those who survive, locking them into a vicious cycle of recurring sickness and faltering growth (UNICEF). Being even mildly underweight increases the risk of death and inhibits cognitive development in children. And it perpetuates the problem across generations, as malnourished women are more likely to have low-birth-weight babies. Stunting, or being below median height for age, is often used as a proxy for multifaceted deprivation and as an indicator of long-term changes in malnutrition. 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.

The Japan bariatric surgery market exhibits robust growth, driven by rising prevalence of obesity and related comorbidities like type 2 diabetes and cardiovascular disease. The aging population in Japan further contributes to this trend, as older individuals are increasingly susceptible to weight-related health issues. Technological advancements in minimally invasive surgical techniques, such as laparoscopic and robotic surgery, are also significantly impacting market expansion. These procedures offer reduced recovery times, shorter hospital stays, and improved patient outcomes, leading to increased adoption. The market is segmented by product type (assisting devices like suturing and stapling devices, implantable devices including gastric bands and balloons) and end-user (bariatric surgery clinics, hospitals, ambulatory surgical centers). While the precise market size for 2025 isn't provided, a reasonable estimation, considering a 12% CAGR and a starting point in 2019 (data missing but implied by provided study period), would place the market value in the tens to hundreds of millions range in USD. This estimation hinges on the typical market size of comparable developed nations and acknowledges the relatively higher cost of healthcare in Japan. Growth is expected to continue through 2033, fueled by government initiatives promoting preventative healthcare and increased awareness of bariatric surgery as a viable treatment option. However, market growth may face restraints such as high procedure costs, limited insurance coverage, and potential surgical complications, which could influence the pace of expansion in the forecast period. Leading players like Medtronic, Johnson & Johnson, and Intuitive Surgical are actively involved in developing and marketing advanced bariatric surgery devices. These companies are investing heavily in research and development to improve the efficacy and safety of their products, further contributing to the growth trajectory. The competitive landscape is characterized by both established multinational corporations and emerging specialized companies, driving innovation and competition within the market. Future growth will depend on continued technological advancements, improved patient access, and successful strategies to address cost-related barriers. A focused marketing strategy targeting healthcare professionals and patients alike will prove crucial for sustained market expansion in the Japanese context. Key drivers for this market are: , Increase in Obese Population; Government Initiatives to Curb Obesity. Potential restraints include: , Increase in Obese Population; Government Initiatives to Curb Obesity. Notable trends are: Stapling Devices Capture the Largest Market Share in the Overall Market.

Mean changes in body weight in all participants according to age in the TH and NTH groups.

Multiple linear regression analysis of variables for examining mean change in body weight between 2011 and 2012.

Age-adjusted mean change in body weight between the TH group and NTH group stratified by lifestyle factors, psychosocial factors, and cardiovascular risk factors.

CI, confidence interval; OR, odds ratio; SD, standard deviation.aAdjusted for age.bAdjusted for age, sleep hours, educational attainment, occupation, frequencies of alcohol consumption and physical activity, smoking status, and K6 scores.

Work-related low back pain is the most prevalent occupational disease in Japan, with 25% of cases resulting from manual handling of heavy loads. The Ministry of Health, Labor and Welfare of Japan has issued guidelines limiting load weights based on the worker’s body weight percentage: 40% of the body weight for males and 24% for females. This study aimed to evaluate the effectiveness of these weight limits in preventing excessive lower back strain and identify potential shortcomings. A total of 20 healthy participants (10 males and 10 females) were included in this study. The motions of the participants while holding loads at specific positions and lifting loads from the floor were recorded using a three-dimensional motion analysis system. The compressive force on the L5-S1 intervertebral disc (IVD-CF) was estimated by simulations using inverse dynamics analysis. The body weights for the musculoskeletal models were set at 50, 70, and 90 kg for males and 40, 55, and 70 kg for females, representing the light, average, and heavy body weights of Japanese workers. The load weights were set at 40% of the body weight for males and 24% for females. Increased body weight led to higher IVD-CF in males, exceeding the safe limit of 3400 N. Additionally, light-weight males experienced excessive strain when holding loads at shin height or lifting from the floor. The IVD-CF for females was lower than that for males because of their lighter body weight and load weight. However, heavy-weight females experienced excessive strain when holding loads at low and distant positions and during lifting. These findings indicate that weight limits based on body weight do not adequately prevent excessive lower back strain, and the nature of the task should be considered to avoid lower back strain.

Work-related low back pain is the most prevalent occupational disease in Japan, with 25% of cases resulting from manual handling of heavy loads. The Ministry of Health, Labor and Welfare of Japan has issued guidelines limiting load weights based on the worker’s body weight percentage: 40% of the body weight for males and 24% for females. This study aimed to evaluate the effectiveness of these weight limits in preventing excessive lower back strain and identify potential shortcomings. A total of 20 healthy participants (10 males and 10 females) were included in this study. The motions of the participants while holding loads at specific positions and lifting loads from the floor were recorded using a three-dimensional motion analysis system. The compressive force on the L5-S1 intervertebral disc (IVD-CF) was estimated by simulations using inverse dynamics analysis. The body weights for the musculoskeletal models were set at 50, 70, and 90 kg for males and 40, 55, and 70 kg for females, representing the light, average, and heavy body weights of Japanese workers. The load weights were set at 40% of the body weight for males and 24% for females. Increased body weight led to higher IVD-CF in males, exceeding the safe limit of 3400 N. Additionally, light-weight males experienced excessive strain when holding loads at shin height or lifting from the floor. The IVD-CF for females was lower than that for males because of their lighter body weight and load weight. However, heavy-weight females experienced excessive strain when holding loads at low and distant positions and during lifting. These findings indicate that weight limits based on body weight do not adequately prevent excessive lower back strain, and the nature of the task should be considered to avoid lower back strain.

Weight retention (kg) at 1 and 6 months postpartum.

Introduction

Welcome to the Japanese General Conversation Speech Dataset — a rich, linguistically diverse corpus purpose-built to accelerate the development of Japanese speech technologies. This dataset is designed to train and fine-tune ASR systems, spoken language understanding models, and generative voice AI tailored to real-world Japanese communication.

Curated by FutureBeeAI, this 40 hours dataset offers unscripted, spontaneous two-speaker conversations across a wide array of real-life topics. It enables researchers, AI developers, and voice-first product teams to build robust, production-grade Japanese speech models that understand and respond to authentic Japanese accents and dialects.

Speech Data

The dataset comprises 40 hours of high-quality audio, featuring natural, free-flowing dialogue between native speakers of Japanese. These sessions range from informal daily talks to deeper, topic-specific discussions, ensuring variability and context richness for diverse use cases.

Topic Diversity

The dataset spans a wide variety of everyday and domain-relevant themes. This topic diversity ensures the resulting models are adaptable to broad speech contexts.

Transcription

Each audio file is paired with a human-verified, verbatim transcription available in JSON format.

These transcriptions are production-ready, enabling seamless integration into ASR model pipelines or conversational AI workflows.

Metadata

The dataset comes with granular metadata for both speakers and recordings:

Such metadata helps developers fine-tune model training and supports use-case-specific filtering or demographic analysis.

Usage and Applications

This dataset is a versatile resource for multiple Japanese speech and language AI applications:

Characteristics of participants classified by pre-pregnancy body mass index values.