Herbs and Flavors: Kampo and Kenshoku for a Balanced Summer

01. Kampo: The roots of traditional medicine in Japan

Kampo (漢方医学, Kanpō igaku) is a medical practice deeply rooted in Japan, with origins dating back to the 7th century, though it assimilated the fundamental principles of Chinese medicine. Chinese medical practices were introduced to Japan as early as the 6th century AD, thanks to missions of doctors and monks who spread their knowledge. Over the centuries, Kampo evolved, developing its own unique identity and a distinctive body of formulations. The Kampo medical system is configured as a specific interpretation and adaptation to Japanese culture and traditions. Currently, Kampo is a recognized and integrated element within the Japanese national healthcare system, a valuable complement to modern medicine. In 2000, an impressive 72% of registered doctors in Japan prescribed Kampo medicines, testifying to its widespread acceptance.

The philosophy of Kampo focuses on the intrinsic harmony between the human body and its surrounding environment. The objective is to restore the balance of internal vital forces: the ki (気), vital energy; the ketsu (血), understood as blood and nourishment; and the sui (水), which includes all bodily fluids. To identify imbalances, Kampo practitioners rely on “diagnosis by observation” techniques (望診 – bōshin), carefully examining the body’s appearance, the patient’s tongue, and pulse. Such tangible indicators offer a precise map of internal conditions, guiding the doctor in choosing the most appropriate therapy. Meticulous observation transforms the body into a true mirror of its needs.

The heart of Kampo practice lies in herbal mixtures, called Yakusō (薬草), and their specific formulations (Shōhō 処方), which surpass the potency of a single plant. Japanese Kampo tradition is distinguished by the use of fixed combinations of herbs, with standardized proportions, an approach that differs from traditional Chinese medicine, which often modifies formulas based on the individual patient. Precision in the selection, preparation, and combination of ingredients is fundamental, as each component is considered an active pharmacological tool. For example, formulations like “Reishi” or “Shiitake,” medicinal mushrooms, are valued for their properties. The 14th edition of the Japanese Pharmacopoeia lists a remarkable 165 herbal ingredients. Kampo is a way to maintain constant well-being, adapting to the seasons and the body’s daily needs, a practice that translates into a conscious choice of food and its ingredients.

02. Kenshoku: Nourishing the body for a balanced summer

Kenshoku (健食) is an authentic Japanese dietary philosophy, focused on maintaining health through the power of food, rather than a rigid restrictive diet. The approach emphasizes the intrinsic quality, freshness, and seasonality of ingredients, which are considered small gifts from nature to be treated with care and respect. The goal is to nourish the body not only to satisfy hunger but to support bodily harmony, a principle particularly crucial during the climatic challenges of summer. Every ingredient, from its origin to preparation, is seen as a vehicle for well-being, an essential building block for lasting balance. The Kenshoku philosophy is a way to create awareness on one’s plate.

The fundamental principles of Kampo, such as general balance, a deep understanding of seasonality, and the ability to respond to changing bodily conditions, are deeply intrinsic to the Kenshoku approach. Food, in this view, rises to the level of true yakuzen (薬膳), or medicinal cuisine, where every single ingredient possesses a specific and tangible function. The choice of a fresh cucumber or a handful of aromatic herbs is guided by their ability to interact with the body, helping it maintain its homeostasis. Nutrition thus transforms into a preventive form of care, a gesture that precedes and supports health.

The Japanese summer, with its combination of humid heat and the risk of fatigue and loss of appetite (Natsubate 夏バテ), presents specific challenges for which Kenshoku offers practical and deeply rooted solutions. To cope with the heat, preference is given to foods that help cool the body, rehydrate it, and maintain stable energy levels. Ingredients like crisp cucumbers (キュウリ – kyūri), soft eggplants (ナス – nasu), and aromatic herbs such as shiso (紫蘇) and myoga (茗荷) become authentic daily remedies. They are used in simple, fresh preparations, often with meticulous attention to their texture and vibrant colors. A Kenshoku meal transforms into a conscious act, a true sculpture of ingredients chosen for their effect on the body, where the very act of preparation already constitutes part of the care.

03. Seasonal medicinal herbs: A guide to refreshment

The strength of an herb, according to Japanese wisdom, lies in the precise moment of its harvest, not solely in its species. Summer herbs, in particular, respond optimally to the hot and humid conditions typical of this season, offering natural support for the body’s well-being. This herbal guide is a true natural toolkit, cyclically renewed and adapted with the changing seasons. Kampo medicine, for example, emphasizes the importance of a wide variety of herbs; the Japanese Pharmacopoeia lists a remarkable 165 herbal ingredients, each with its specific properties and optimal time of use. Such profound knowledge allows for the selection of the most effective remedies for each period of the year.

Shiso (紫蘇) is a true summer all-rounder, a thin, vibrant leaf available in two main varieties: the ao-jiso (green) and the aka-jiso (red). Its penetrating, slightly spicy and minty aroma makes it a versatile and refreshing ingredient, valued for its digestive properties. It is used as a seasoning for salads and cold dishes, as a natural preservative due to its antimicrobial action, or used in refreshing drinks like red shiso juice, a symbol of Japanese summer flavors. Myoga (茗荷), the Japanese ginger bud, offers a pungent and refreshing flavor, with light notes of ginger and onion, and a crisp texture. It is known to stimulate appetite and aid digestion, especially when heat reduces the desire to eat. Finely sliced, myoga is an essential touch for cold somen (そうめん), chilled tofu (hiyayakko), or as a garnish for soups and salads.

Gobo (牛蒡), the burdock root, plays a crucial role in summer Kenshoku for its purifying and strengthening properties, although it is not a “cooling” herb like shiso or myoga. The fibrous, earthy root acts as an anchor for intestinal well-being, helping to “cleanse” the body and maintain balance even during the heat. It is often used in light broths or in the preparation of kinpira, a sautéed dish with carrots and soy sauce, which offers substantial nourishment without being heavy. Doku-dami (ドクダミ – Houttuynia cordata) is a less known herb outside of Japan, but extremely potent, with a distinctive flavor and extraordinary efficacy. Its purifying and detoxifying properties make it a true “internal brush” for the body, often consumed as an infusion. It is not uncommon to see its leaves hanging to dry in Japanese homes, ready to be transformed into a healthy drink. These often unassuming herbs are the silent guardians of ancient wisdom that continues to whisper how to find harmony.

04. From plant to cup: The art of preparing therapeutic infusions

The preparation of therapeutic infusions and decoctions is a true process, an ancient technique that elevates the herb itself to medicine, not a simple act of pouring hot water over herbs. The procedure, known as senjiru (煎じる), aims to precisely extract active compounds, transforming raw material into an elixir of well-being. For this art, the essential tools are few but significant: a ceramic or glass teapot, preferably a traditional dobin (土瓶), a fine strainer for delicate filtering, and a stable, controllable heat source. The choice of herbs is the crucial first step, where freshness and quality are indispensable. Herbs can be used fresh, freshly picked, dried for longer preservation, or in specific ready-made mixtures, such as Kampo formulations standardized by the Japanese Ministry of Health. The act of choosing, almost a tactile ritual, begins at the market or in one’s own garden.

There are two main techniques for extracting the essence of herbs: infusion and decoction. Infusion is ideal for the tender, more aromatic parts of the plant, such as shiso leaves, and involves adding hot (not boiling) water, steeping for short periods, from 5 to 10 minutes. Decoction, on the other hand, is the most suitable technique for roots and harder parts, such as gobo or doku-dami, and requires slow cooking for longer periods, sometimes half an hour or more. A practical example is preparing cold shiso tea, where fresh leaves are steeped in water and then left to cool, offering a delicate and refreshing flavor. For a dokudami decoction, the dried herb is boiled slowly, observing the water change color, a sign of the extraction of active compounds. Industrialized Kampo medicines are rigorously tested for key chemical constituent levels, ensuring precise quality control from the blending of raw herbs to the final product.

The act of drinking the infusion or decoction transforms into a moment of pause, of profound awareness, a small daily ritual that connects the body to nature, going far beyond the mere intake of liquids. The cup itself becomes the final instrument that conveys well-being; its warmth in the hands instills a feeling of comfort and tranquility. The art of personalization allows different herbs to be combined to achieve specific effects or to adapt the flavor to one’s preferences. Personalizing well-being through the drink is an art that refines with experience and, above all, with careful listening to one’s body, learning to recognize what it needs. Every cup represents a sensory and healing journey, starting from the earth and reaching directly to the soul.

05. Mindful cooking: Light summer recipes according to Kampo

Cooking, in Kampo and Kenshoku philosophy, transcends the mere act of preparing food to become a laboratory of well-being, where each recipe is a true formula designed to restore and maintain bodily balance. Recipes are carefully conceived blueprints, with each ingredient selected for its specific therapeutic function, not simple culinary instructions to follow passively. Every action in the kitchen, from choosing raw ingredients to the cooking method, acquires a profound purpose, contributing to an internal harmony that reflects in physical well-being. The approach elevates food to a daily healing tool, an act of prevention that integrates naturally into everyday life. The active compounds of herbs and roots, their intrinsic temperature (cooling or warming), and their impact on bodily fluids, ki, and ketsu, are meticulously considered. The dish thus becomes a small elixir, the fruit of millennia-old knowledge that truly knows how to nourish.

Among the Japanese summer classics that perfectly embody this philosophy, somen (そうめん) stands out as a true panacea. These very thin wheat noodles, served cold and dipped in a light broth called tsuyu (汁), offer immediate refreshment, indispensable for tackling the hottest days. The addition of shiso and myoga is purposeful: these herbs act as true cooling and digestive agents. Shiso gives the dish a slightly minty aroma and a vibrant color, while myoga, with its crispness and pungent notes of ginger and onion, stimulates an appetite fatigued by the heat. Tofu hiyayakko (冷奴) is equally emblematic, a simple yet effective dish: blocks of incredibly fresh tofu, with a silky and delicate texture, served cold. Condiments, or yakumi (薬味), are key tools for balance: grated ginger (生姜 – shōga) adds a subtle warmth that balances the cooling nature of tofu, preventing excessive internal chilling. Completing the picture, shiso and chopped scallions provide freshness and a touch of aromatic vitality.

Miso soup, while often associated with winter, finds a surprisingly effective summer variation. Prepared with a lighter dashi (broth) and enriched with seasonal vegetables like eggplant or cucumber, cooked for only a few moments, it offers a gentle warmth that comforts without being heavy. Miso itself, a fermented food, is a powerful intestinal regulator and probiotic, fundamental for maintaining flora balance even during warmer months, contributing to a sense of lightness and vitality. The act of serving and consuming these light dishes is equally important: the careful presentation, harmonious colors, and arrangement of ingredients are integral to well-being, transforming the meal into a moment of mindfulness, where the beauty of the dish is itself nourishment for the soul. A light and curated meal becomes a multisensory experience, beginning with sight and culminating in a deep sense of inner balance. The true secret of conscious cooking is the ability to transform daily life into an act of profound care, rather than exoticism.

06. The table as a pharmacy: Foods that heal and invigorate

Japanese cuisine extends its vision beyond individual herbs, presenting itself as an integrated system of natural “medicines,” where every food is a genuine tool for health. At the heart of this philosophy is the concept of Isho-Doshoku (医食同源), translatable as “medicine and food have the same origin,” a cardinal principle that elevates the table to the primary place of prevention and cure. Every meal is a therapeutic opportunity, a skilled combination of tools for well-being, rather than the intake of supplements or isolated remedies. This ancient approach suggests that health is built and maintained through what one brings to the table every day, transforming the dietary routine into a practice of profound self-care. Many healing substances are already found in nature, and wisdom lies in learning how to use them intelligently.

Among the pillars of this “table pharmacy” are fermented foods, or Hakko-shokuhin (発酵食品), authentic medicines for the gut and immune system. Miso (味噌), natto (納豆), and tsukemono (漬物) are staple ingredients of the daily diet, not mere occasional supplements. Miso, a dense and flavorful paste, is an essential probiotic for digestion. Natto, fermented soybeans with a unique taste, is known for its richness in vitamin K2. Tsukemono, pickled vegetables, offer a variety of flavors and textures, as well as vital enzymes. Seaweeds, or Kaisō (海藻), represent a concentrate of minerals and fibers. Wakame (若布), kombu (昆布), and nori (海苔) are fundamental for purifying the body and invigorating it, especially in summer, when they help maintain water and electrolyte balance. From the crispness of nori to the gelatinous texture of kombu, each seaweed provides distinct benefits, enriching dishes with umami and vitality.

Even ginger (Shōga 生姜) and garlic (Ninniku 葫), while not specifically “cooling” like some summer herbs, play a crucial role in maintaining the body’s overall balance. In small quantities, especially in summer, they can help combat fatigue and stimulate circulation. They act as “tools” to balance the excess of cold foods, providing moderate internal warmth that supports the body without overheating it, essential for preventing digestive issues or muscle aches. Finally, rice (Kome 米) is the neutral and easily digestible staple food that serves as a canvas upon which other ingredients are built, providing stable and lasting energy. Brown rice (genmai 玄米), in particular, is valued for its higher nutritional content, a grain that steadily and tangibly supports the body without sharp glycemic spikes.

07. A legacy of well-being: Integrating ancient wisdom into modern life

The millennia-old wisdom of Kampo and Kenshoku offers a universal model of well-being, a true toolkit applicable in any context and at any time, not confined to the temples of Japan or to exotic and inaccessible practices. The principles, rooted in harmony with nature and a deep respect for one’s body, represent a heritage of knowledge that transcends cultural barriers. The integration of Kampo into the Japanese national healthcare system, where a remarkable 72% of doctors prescribe Kampo medicines, demonstrates its effectiveness and relevance even in a modern medical approach. This article is an invitation to reconnect with the subtle signals of one’s body, just as an expert Kampo physician would. Listening carefully to the body means learning to adapt dietary and lifestyle choices, transforming awareness into a daily act of profound self-care, a constant and intimate dialogue with one’s being.

Integrating this wisdom means adopting small, conscious changes that, over time, generate a significant impact, rather than overturning one’s life with rigid rules. The choice of a specific herb for a refreshing herbal tea, the preparation of a curative infusion, or a light and balanced meal become daily tools of care, simple yet incredibly powerful rituals. Such seemingly insignificant gestures are key to cultivating lasting well-being, a constant practice that gently infiltrates habits. Attention to seasonality and local ingredients, a cornerstone of this philosophy, connects not only to individual well-being but also to that of the planet. The choice proves sustainable for both people and the environment, initiating a virtuous circle clearly manifested on the plate, celebrating the cyclical nature of nature and humanity’s place within it.

The journey into Japanese flavors and traditions is an open invitation to experiment, to explore not merely as tourists, but as those who choose to inhabit a culture through its most intimate and universal tools: food and self-care. It is a sensory and spiritual path that enriches life, offering a new perspective on nourishment and balance. Visiting a pharmacy or drugstore in Japan, one can notice the wide range of products, including many Kampo-based ones, testifying to this integration. The wisdom of Kampo and Kenshoku indicates that well-being is a continuous dialogue with nature, an art refined day by day.

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