Foods are also classified according to yin and yang. If you follow the Chi theory of food, it is generally accepted that when your body is more “yin” in nature, you will live a longer life because the degeneration of the internal organs is slowed down…thus many people favor a diet of more “yin” foods.
Yin foods are also ideal for those who feel stressed out, irritable and under pressure as they serve to calm the spirit and revitalize the inner Chi essence…and they are generally best consumed during the summer “yang” months to help keep the body in balance.
Do be aware that too much yin food in the body reveals itself in forgetfulness, tiredness, lethargy and a general feeling of listlessness. Bodily symptoms could manifest in the form of diarrhea, pale complexion and lack of color in the eyes and skin. If you observe these symptoms you may want to up your intake of YANG foods. For your reference I have included a list of yin & yang foods which is by no means exhaustive but will give you some ideas.
Yang foods on the other hand are usually rich, heavily flavored strongly sauced and hot, often fried and best eaten during the winter “yin” months. Yang foods are excellent for those who are chronically short of energy (your body is depleted of yang essence and will benefit from extra yang chi) and also for new mothers.
When there is an excess of Yang foods in the body, you may find bodily symptoms such as heartburn, constipation, cold sores, rashes, pimples, acne and ulcers and when you observe such symptoms you may want to increase your intake of Yin foods.