By Anasuya Batliner, NC, Dipl. ABT, CST
Published in Nutrition Professionals Quarterly, 2004
"To nourish the Kidney is to become more and more connected to our own spontaneous impulses and the will to live."
- Daverick Leggett, Recipes for Self-Healing
The key piece of nutritional wisdom is to focus on tonifying foods that moisten, along with some mildly cooling foods, and to resist a temptation to overdo cooling foods that may put out a fire that’s not as strong as it seems.
A wide and varied diet: Kidney Yin is about the deep reserves in the body including nutritional reserves. Suggest a varied diet that provides a broad array of vitamins, flavonoids, carotenes, trace elements, minerals, and amino acids. This is not the time to eat the same foods over and over again.
Water: Since Yin is about moisture, suggest ample water throughout the day.
Salty flavored foods: miso, sea salt, tamari, salted raw sauerkraut or kimchee (Korean cultured vegetables). Each of the five elements in TCM has a flavor attributed to it, and the Water flavor which governs Kidneys is salty. To support the Water element, recommend a healthy amount of salt, as too much salt will have the opposite effect. Check to make sure your client is not getting too much, and that she has replaced commercial table salt with sea salt.
Kidney shaped foods: black beans, kidney beans, most beans – Because beans are kidney shaped as well as seeds with potential for new life, these foods have long been considered especially nourishing to the Kidneys.
Blue and black foods: Blueberries, blackberries, mulberry, black beans – The colors blue and black correspond to the Water element of the Kidneys. It is possible to strengthen the Water element by eating blue/black foods.
Seafood: fish, shrimp, seaweeds – all support the Water element.
Seeds: flax, pumpkins, sunflower, black sesame – seeds relate to fertility and growth which is governed by Kidney energy.
Nuts: Walnuts, Chestnuts – Nuts are seeds. These nuts are particularly recommended for Kidney energy.
Animal Products: Pork, duck, lamb, eggs, cheese – Small amounts of animal protein can be used therapeutically here. Bob Flaws, L.Ac., author of The Tao of Healthy Eating says, “… animal foods are the most direct way to get the building blocks and constituents of this Yin essence.” Pork and duck are considered moistening. Since animal products are dense foods there are some cautions: If there is digestive impairment, the high fat content of duck may be too much. Lamb is the most warming of the meats, so if the person has a lot of hot flashes or night sweats, this may not be appropriate. Excess cheese may be too dampening for the Spleen. Too much meat, particularly without the balance of vegetables, will Stagnate the Liver and create heat. Look to the individual to decide on the ideal amount of animal products.
Bone-Marrow Broths & Soups: This will nourish Marrow governed by Kidneys. Especially beneficial for people wanting to prevent or heal osteoporosis.
Grains: Barley, Millet. These are both mildly cooling and nourishing to Yin.
Vegetables: Asparagus, Deep green leafy vegetables – Since it has diuretic properties, asparagus is especially helpful with opening the flow for those with dark, scanty urine. Deep green leafy vegetables build the Blood, and since Blood is a Yin fluid, they are highly recommended. Also moist vegetables such as cucumbers and celery are helpful.
Fruits and Melons: These are emphasized since they are moistening and mildly cooling. Too much fruit can be too cooling resulting in diarrhea, but 2-4 pieces of fruit a day should be fine.
Tonics: Spirulina, kelp, chlorella, wheatgrass – These mineral rich foods build the Blood which enhances Yin. They are also high in nucleic acids (RDA/DNA) which have been shown to reduce signs of aging.
Mineral rich herbs: Nettles, Oatstraw. Nettles is a gentle, cooling tonic that supports the Blood and Kidneys, while oatstraw strengthens the nerves.
Moistening herbs: Marshmallow, slippery elm, comfrey, aloe vera gel – these are all moistening demulcents with high mucilage content. Flax seed tea could be used here too.
Chinese Herbs: Rehmannia root - often found in the patent formula used for Kidney Yin Deficiency called “Six Flavor Tea Pills” or “Rehmannia Six”.