Synopsis

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

Oriental arborvitae (Platycladus orientalis, also known as Thuja orientalis or Biota orientalis) is a conifer whose seeds and leaves are commonly used in traditional Chinese medicine (TCM). In TCM, the seeds, called Bai Zi Ren, are used to nourish the Heart and Spleen, calm the spirit, and moisten the intestines. The Spleen in TCM theory is considered crucial for digestion and the transformation and transportation of nutrients, which is distinct from the anatomical spleen recognized in Western medicine.

The rationale for using oriental arborvitae to support the Spleen stems primarily from TCM texts and historical usage, rather than modern scientific validation. TCM practitioners have long used Bai Zi Ren to address symptoms associated with Spleen deficiency such as insomnia, palpitations, and forgetfulness, based on the herb’s reputed ability to tonify Spleen Qi and blood. However, scientific studies on the effects of oriental arborvitae on the human spleen, digestive function, or systemic immunity are very limited, and there is little to no direct clinical evidence supporting these traditional uses.

In summary, the use of oriental arborvitae to support the Spleen is justified by traditional practice, especially within the context of TCM theory, but lacks robust modern scientific evidence. The rating of 2 reflects the strong traditional basis but insufficient scientific validation.

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