Japan Weight Management Market

Japan Weight Management Market Overview:

The Japan weight management market size reached USD 33.21 Billion in 2024. Looking forward, IMARC Group expects the market to reach USD 58.92 Billion by 2033, exhibiting a growth rate (CAGR) of 5.90% during 2025-2033. The Japan weight management market is being driven by an aging population focused on healthy aging, urban lifestyle shifts leading to sedentary behavior, increasing health consciousness, rising prevalence of lifestyle diseases like obesity and diabetes, and elevating demand for innovative weight loss treatments, such as GLP-1 receptor agonists and dietary supplements.

Japan Weight Management Market Trends:

Aging Population and Health Consciousness Among Seniors

One of the key drivers of Japan's weight management market is the country's growing elderly population, as well as surge in the focus on healthy aging. Japan boasts one of the globe's highest life expectancies, and more than 29% of its population is aged 65 or above. This demographic change has driven demand for products and services that enable both longevity and quality of life during older years. Seniors actively are looking for weight management aids that can stave off or treat age-associated diseases like osteoporosis, diabetes, heart disease, and arthritis, which are all compounded by excess weight or obesity. Consequently, there is a discernible trend towards low-impact exercise regimens, dietary supplements, and personalized diet plans specifically for older adults. Pharmaceutical and nutraceutical firms are creating functional foods and drinks fortified with nutrients such as collagen, calcium, probiotics, and fiber, formulated for senior metabolism and gastrointestinal health. Government programs and healthcare organizations are also fueling this trend through the promotion of preventive healthcare programs and investments in community-based centers of wellness that emphasize weight and health monitoring among the elderly.

Urban Lifestyle Shifts and Sedentary Work Culture

Another key market driver is the evolution of urban lifestyles, especially among younger and middle-aged working populations. Major cities in Japan, like Tokyo, Osaka, and Yokohama, have witnessed fast urbanization, which has resulted in longer working hours, extensive use of public transport, and highly sedentary jobs. These have considerably lowered physical activity levels and raised stress, unhealthy eating, and irregular sleep patterns, all of which led to weight gain. In turn, consumers in cities are widely opting for on-the-go dieting solutions, meal replacement shakes, low-calorie foods, and intelligent fitness devices that are easily incorporated into their hectic lifestyles. The advent of digital fitness platforms, mobile apps, and online personal coaching schemes is another indication of this trend. These platforms tend to offer customized fitness programs, meal monitoring, and virtual support groups, appealing significantly to busy professionals who are tech-savvy.

Japan Weight Management Market Segmentation:

IMARC Group provides an analysis of the key trends in each segment of the market, along with forecasts at the region/country level for 2025-2033. Our report has categorized the market based on diet, service, and equipment.

Diet Insights:

• Functional Beverages 
• Functional Food 
• Dietary Supplements 

The report has provided a detailed breakup and analysis of the market based on the diet. This includes functional beverages, functional food, and dietary supplements.

Service Insights:

• Health Clubs 
• Consultation Services 
• Online Weight Loss Services 

A detailed breakup and analysis of the market based on the service have also been provided in the report. This includes health clubs, consultation services, and online weight loss services.

Equipment Insights:

• Fitness Equipment
  • Cardiovascular Training Equipment 
  • Strength Training Equipment 
  • Others 
• Surgical Equipment 
  • Minimally Invasive/Bariatric Equipment
  • Non-Invasive Surgical Equipment

The report has provided a detailed breakup and analysis of the market based on the equipment. This includes fitness equipment (cardiovascular training equipment, strength training equipment, and others) and surgical equipment (minimally invasive/bariatric equipment and non-invasive surgical equipment).

Regional Insights:

• Kanto Region 
• Kansai/Kinki Region 
• Central/Chubu Region 
• Kyushu-Okinawa Region 
• Tohoku Region
• Chugoku Region 
• Hokkaido Region
• Shikoku Region 

The report has also provided a comprehensive analysis of all the major regional markets, which include Kanto Region, Kansai/Kinki Region, Central/Chubu Region, Kyushu-Okinawa Region, Tohoku Region, Chugoku Region, Hokkaido Region, and Shikoku Region.

Competitive Landscape:

The market research report has also provided a comprehensive analysis of the competitive landscape. Competitive analysis such as market structure, key player positioning, top winning strategies, competitive dashboard, and company evaluation quadrant has been covered in the report. Also, detailed profiles of all major companies have been provided.

Japan Weight Management Market News:

• March 2025: Eli Lilly announced that it would introduce its weight-loss drug Zepbound (tirzepatide) in Japan, targeting individuals with obesity and related health conditions. Zepbound, a once-weekly injectable medication, functions as a dual GIP and GLP-1 receptor agonist, effectively reducing body weight by enhancing insulin sensitivity and suppressing appetite.
• December 2024: Mitsubishi Tanabe Pharma Corporation (MTPC) and Eli Lilly Japan received approval from Japan's Ministry of Health, Labour and Welfare for Zepbound (tirzepatide), a long-acting GIP/GLP-1 receptor agonist, for chronic weight management. This approval introduces a new treatment option for obesity, targeting individuals with a BMI ≥27 kg/m² and comorbidities like hypertension, dyslipidemia, or type 2 diabetes mellitus.
• February 2024: Novo Nordisk launched its weight-loss drug Wegovy in Japan, marking its first entry into the Asian market. The drug targets individuals with a BMI over 35, or over 27 with obesity-related conditions.
• November 2023: Australian health startup Eucalyptus launched its digital weight management platform, Juniper, in Japan to address rising obesity and type 2 diabetes rates. Juniper offers a holistic telehealth service combining online consultations, e-prescriptions, and ongoing support from dietitians and health coaches. This approach aims to empower Japanese patients to achieve sustainable weight loss and improve long-term health outcomes.

Japan Weight Management Market Report Coverage:

Key Questions Answered in This Report:

• How has the Japan weight management market performed so far and how will it perform in the coming years?
• What is the breakup of the Japan weight management market on the basis of diet?
• What is the breakup of the Japan weight management market on the basis of service?
• What is the breakup of the Japan weight management market on the basis of equipment?
• What is the breakup of the Japan weight management market on the basis of region?
• What are the various stages in the value chain of the Japan weight management market? 
• What are the key driving factors and challenges in the Japan weight management market?
• What is the structure of the Japan weight management market and who are the key players?
• What is the degree of competition in the Japan weight management market? 

Key Benefits for Stakeholders:

• IMARC’s industry report offers a comprehensive quantitative analysis of various market segments, historical and current market trends, market forecasts, and dynamics of the Japan weight management market from 2019-2033.
• The research report provides the latest information on the market drivers, challenges, and opportunities in the Japan weight management market.
• Porter's five forces analysis assist stakeholders in assessing the impact of new entrants, competitive rivalry, supplier power, buyer power, and the threat of substitution. It helps stakeholders to analyze the level of competition within the Japan weight management industry and its attractiveness.
• Competitive landscape allows stakeholders to understand their competitive environment and provides an insight into the current positions of key players in the market.