The Science Behind Mukumi and Japan’s Functional Drinks

The rise of health-focused food in Japan has paved the way for a new star: functional beverages. These refer to drinks enriched with bioactive ingredients that have health benefits beyond basic nutrition. In Japan, functional beverages have surged in popularity, driven by an ageing population, rising health awareness, and a cultural emphasis on preventive care. 

One wellness concept closely tied to this trend is “mukumi”. In Japanese, mukumi means swelling or water retention in the body, often caused by poor circulation or lifestyle factors. This can lead to discomfort and fatigue, which are issues that many consumers want to manage proactively.

Japanese brands have developed functional beverages designed to support wellbeing, including products that help alleviate symptoms associated with mukumi. These drinks do not claim to cure medical conditions but aim to support healthy circulation and hydration balance through carefully selected ingredients, including:

1. Citric acid

Commonly found in citrus fruits like lemons and oranges, citric acid supports energy metabolism and may help reduce feelings of fatigue.

2. Lemon-derived monoglucosyl hesperidin

Hesperidin has anti-inflammatory and antioxidant properties, among numerous other health benefits. Further research suggests that it also improves blood flow and strengthens capillaries, making it a natural ally against swelling and circulatory issues.

By combining these components, Japanese functional drinks offer a convenient, science-backed option for individuals looking to manage everyday discomfort and maintain an overall state of wellness.

The appeal of functional drinks extends far beyond Japan. Modern consumers are increasingly proactive about wellbeing, seeking products that deliver targeted benefits in an easy-to-consume format.

This shift has transformed what was once a niche category into a global powerhouse: the functional drinks market was valued at USD 149.75 billion in 2024 and is projected to reach USD 248.51 billion by 2030, growing at a CAGR of 8.9% from 2025 to 2030.

Additionally, the overall global wellness market, wherein functional nutrition has been identified as one of the top six high-growth subcategories, is valued at USD 1.8 trillion in 2024.

This surge reflects demand for natural ingredients and innovation that supports both body and mind, making functional beverages a cornerstone of the wellness movement.

Swelling and poor circulation may seem minor, but they can impact comfort and mobility. By helping alleviate these symptoms, functional beverages contribute to advancing the global wellness movement, which prioritises proactive health management. 

Moreover, the appeal of functional drinks extends to mental wellbeing. Feeling energised and free from discomfort contributes to overall quality of life—a goal that modern consumers value highly.

Drinks that target mukumi are just a few examples of how Japanese innovation is shaping global wellness trends. To discover more about functional drinks, authentic cultural ingredients, and the science behind them, visit “JAPAN’S FOOD” EXPORT FAIR—the ultimate platform for connecting with pioneering brands and exploring the future of health-focused Japanese F&B items.