One of the most basic principles of macrobiotic is to eat an ecological, environmentally - based diet. That means to rely primarily on foods native to the climate and environment in which we live. Until the modern age, people were more or less dependent on the products of their regional agriculture. Foods that grew in their area formed the basis of their daily diet. It was not until modern technology that it became possible for people to base their diets on foods from regions with far different climates.
Today, it is common for people to consume bananas from South America, sugar from the Caribbean, pineapples from the South Pacific, or kiwi from New Zealand. However, our health depends on our ability to adapt to the changes in our environment. When we eat foods from a climate that is very different from ours, we lose that adaptability. As society moved away from its traditional, ecologically-based diet, there has been a corresponding rise in chronic illness. Therefore, for optimal health, we need to return to a way of eating based on foods produced in our local environment, or at least on foods grown in a climate that is similar to ours.
Foods with more yang, or contracted energy remain viable longer and can come from a greater distance than foods with more yin, or expansive energy. Sea salt and sea vegetables are examples. They are rich in contracted minerals and can come from the oceans around the world, provided these waters are within your hemisphere. Grains, especially with the outer husk attached, remain intact for a long time, even thousands of years, and can come from anywhere in your continent. Beans also travel well and can come from a similarly wide area. However, vegetables and fruits are more yin or expansive; they decompose more rapidly than grains and beans, and unless they are naturally dried or pickled, are best taken from your immediate area.
Changing with Our Environment
It is also important to adapt our cooking and eating to seasonal changes. The modern way of eating does not do this, as people eat pretty much the same diet throughout the year. High temperatures and bright sunshine produce a stronger charge of upward energy in the environment. Water evaporates more rapidly and plants become lush and expanded. Spring and summer are times of upward, expansive energy. Then toward the end of summer, energy starts to change, moving downward and inward. In colder and darker conditions, such as those of autumn and winter, downward or contracting energy is stronger.
How can we adapt to these changes? During spring and summer, we can make our diet lighter and fresher, meaning that we use less fire in cooking. We do not need as much fire in our cooking because fire is already there in the form of strong sunshine. When it is hot, we do not need warmth from our food. As we move into autumn and winter, with cooler temperatures and stronger downward energy, we make our food hearty and warming by using more fire in cooking.
As the seasons change, we also need to utilize the natural products of our environment. Our gardens are filled with vegetables and other foods during the spring and summer, so we can naturally eat plenty of fresh garden produce during these times. For example, summer is the time when corn is readily available, so it is fine to eat plenty of fresh corn in that season.
From season to season, atmospheric energy alternates as part of the daily cycle. Upward energy is stronger in the morning, while downward energy is stronger in the afternoon and evening. In order to eat in harmony with this cycle, breakfast should be light, not heavy. A breakfast of eggs and bacon is dense and heavy, and goes against the movement of energy. Breakfast grains can be cooked with more water, so that they become lighter and more easily digested. Dinner can include a greater number of side dishes, and we normally eat more in the evening, since at that time, atmospheric energy is more condensed and inward-moving. Lunch can also be quick and light, since at noon, atmospheric energy is very active and expansive. Quick light cooking, such as that in which we reheat leftovers, can be done at that time.