Walnuts are among the oldest known nuts, valued for centuries not only as food but also as a natural remedy. Across many cultures, they have been used in treatments for dry skin and dryness-related symptoms, thanks to their ability to replenish moisture in the body. In Traditional Chinese Medicine (TCM), walnuts are often recommended for relieving issues such as constipation, chronic cough, and dry skin, common signs of internal dryness.

In TCM theory, the process of natural aging is closely tied to a gradual decline in kidney energy (especially kidney yang). Walnuts are considered especially nourishing for the kidneys, making them one of the go-to foods for longevity and anti-aging support. They may also help with kidney-related imbalances, such as lower back discomfort, sensitivity to cold, fatigue, and occasional ringing in the ears. By gently warming the body and supporting qi and blood circulation, walnuts contribute to resilience and overall wellness.

Modern nutrition echoes this wisdom: walnuts are rich in omega-3 fatty acids, antioxidants, and vitamin E, all of which support brain health, heart health, and skin hydration. These nutrients help reduce inflammation, protect cells from oxidative stress, and keep the skin supple.

However, walnuts can be heavy on the digestive system, so it’s best to enjoy them in moderation and ideally paired with easily digestible foods. 

Yakuzen Classifications
Nature – Warm （温）
Channels – Kidney (腎), Lung (肺), Large Intestine (大腸)
Flavor – Sweet (甘)

How do walnuts help you?

1. Tonify kidney yang
2. Warm up your lungs
3. Moisten dryness

Good for the following symptoms

1. Chronic cough
2. Asthma
3. Lower back pain caused by kidney energy deficiency
4. Sensitivity to cold
5. Fatigue
6. Constipation due to the dry intestine
7. Dry skin

Cautions

It's very important to know about your body conditions before choosing foods.
Do not overeat particular foods at once.
Do not eat the foods you are allergic to.
There are foods to avoid if you are pregnant / have a disease. Ask your doctor before you start Yakuzen.