Yakuzen holds that every ingredient has a nature.<\/p>\n\n\n\n
On the basis of yin-yang and five-phase theory, the foundation of Chinese medicine, ingredients have the qualities of yin and yang. Put simply, yin suggests stillness and cold, yang activity and heat. When the body is in a yin state, supply yang ingredients; when it is in a yang state, yin ones. Keeping the body in balance this way is the basic idea of yakuzen.<\/p>\n\n\n\n What deserves particular attention is that seasonal ingredients hold qualities that settle the body for the conditions of that season. More ingredients are available all year now, but in nature they have different qualities from season to season. Summer gourds cool the body, for instance; each holds the nourishment and the effects that time of year calls for.<\/p>\n\n\n\n People fall ill easily at the turn of the seasons, particularly moving from spring into summer and summer into autumn. Let us look at the changes each season brings and the ingredients that answer them.<\/p>\n\n\n\n Spring is the season when the Liver works harder.<\/p>\n\n\n\n Chinese medicine holds that as temperatures rise in spring, yang increases and the Liver becomes more active. You become more active, but you may also flush, feel unsettled and get irritable. When the body cannot adapt well to the change from winter into spring, heaviness, headaches and cold-like symptoms can appear, as with what Japan calls May blues and other vague complaints.<\/p>\n\n\n\n The yakuzen ingredients that suit spring are held to be those that moderate a Liver working too hard. Eating sour ingredients from among the five flavours, and the bitter ingredients that only spring brings, such as udo, fuki no to and taranome, works well on a spring body carrying heaviness and swelling.<\/p>\n\n\n\n Summer is the season when the Heart is more active. It is also the season when the rainy weather and the heat lead people to drink too many cold things and build up damp, and when heat itself can get the better of you. Rooms with the air conditioning permanently on also throw things out of balance. What matters is sweating in moderation, replenishing the fluids you need, and settling the body with ingredients that balance heat.<\/p>\n\n\n\n The yakuzen ingredients that suit summer mostly cool a body heated by the weather. Eat summer vegetables such as bitter melon, winter melon, cucumber, lettuce and watermelon, and encourage the passing of water.<\/p>\n\n\n\n For heading off summer fatigue, kabocha squash and shiso, which digest easily and build resilience, are the ones. Sweating also loses blood, so replenish your energy with blood-replenishing ingredients such as spinach, sweet pepper and liver.<\/p>\n\n\n\n The rainy season is when people fall ill most easily. The clammy damp settles in the body and causes all sorts of trouble.<\/p>\n\n\n\n Seen through yakuzen, the rainy season is closely tied to the Spleen, the digestive system. It is a time when stomach and intestinal trouble and damp-related skin conditions are common.<\/p>\n\n\n\n Yakuzen ingredients that work well in the rainy season include:<\/p>\n\n\n\n That said, cold and raw food loads the Spleen, so take care not to overdo it. Anyone who feels the cold easily should centre their eating on warm food.<\/p>\n\n\n\n What is bothering you at the moment?<\/p>\n\n\n\n Moving from autumn into winter, dealing with dryness and cold is what matters.<\/p>\n\n\n\n Autumn is the season when the Lung works harder, and dryness readily tells on the throat and the skin. You also need to prepare to store the Kidney's energy for winter.<\/p>\n\n\n\n Yakuzen ingredients for this time include:<\/p>\n\n\n\n What deserves particular attention are the ingredients in season from autumn into winter. Sweet potato, kabocha squash, lotus root and chestnut warm the body and build resilience.<\/p>\n\n\n\n Why seasonal ingredients matter in yakuzen goes beyond taste, to the harmony between our bodies and nature. Understand how the body changes through the seasons and make a point of seasonal ingredients with the qualities that time of year calls for, and the body falls into harmony with nature's rhythm and stays well.<\/p>\n\n\n\n Meeting yakuzen made me feel the power ingredients hold, and my own constitution improved. Out of the thought that I wished I had known sooner, I now pass the wisdom of yakuzen on to as many people as I can.<\/p>\n\n\n\n Why not start today, making a point of seasonal ingredients as the seasons turn and as how you feel changes? Turn your kitchen into a medicine chest and yourself into the physician of your own food, and protect your own body and mind, and those of the people you care about.<\/p>\n\n\n\n![\"Yakuzen](\"https:\/\/yasai-yakuzen.com\/wp-content\/uploads\/2026\/09\/yakuzen-seasonal-foods-1.jpg\")
<\/figure>\n\n\n\nHow the body changes through the seasons, and what is in season to match<\/strong><\/h2>\n\n\n\n
Spring: changes and ingredients<\/strong><\/h3>\n\n\n\n
![\"A](\"https:\/\/yasai-yakuzen.com\/wp-content\/uploads\/2026\/09\/yakuzen-seasonal-foods-2.jpg\")
<\/figure>\n\n\n\nSummer: changes and yakuzen ingredients<\/strong><\/h3>\n\n\n\n
Yakuzen for the rainy season<\/strong><\/h2>\n\n\n\n
![\"Yakuzen](\"https:\/\/yasai-yakuzen.com\/wp-content\/uploads\/2026\/09\/yakuzen-seasonal-foods-3.jpg\")
<\/figure>\n\n\n\n\n
Yakuzen for the move from autumn into winter<\/strong><\/h2>\n\n\n\n
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![\"Yakuzen](\"https:\/\/yasai-yakuzen.com\/wp-content\/uploads\/2026\/09\/yakuzen-seasonal-foods-4.jpg\")
<\/figure>\n\n\n\nStaying well by eating in harmony with the season<\/strong><\/h2>\n\n\n\n