Synopsis

Source of validity: Traditional
Rating (out of 5): 2

In traditional Chinese medicine (TCM), walnuts (Juglans regia) have long been considered beneficial for supporting the Spleen system, as well as the Kidney and Lung systems. TCM theory holds that walnuts are warm in nature and help to tonify Qi and Yang, moisten the intestines, and benefit the brain. The Spleen, in TCM, is not the same as the anatomical spleen but is part of a broader system related to digestion, nutrient assimilation, and energy production. Walnuts are believed to strengthen the Spleen Qi, helping with fatigue, weak digestion, and constipation. Historical texts such as the “Shennong Bencao Jing” and later pharmacopoeias document walnut use for such purposes.

Modern scientific evidence linking walnut consumption specifically to Spleen function, as defined in TCM, is lacking. However, walnuts are recognized for their nutritional value, including healthy fats, antioxidants, and micronutrients, which can support general health and digestion. No clinical trials directly connect walnut consumption to improved Spleen function in the biomedical sense or as defined by TCM. Thus, the use of walnuts to support the Spleen system is primarily justified by traditional use rather than scientific validation.

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