Synopsis

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

Fu Ling (Poria cocos), also known as "Indian bread" or "Tuckahoe," is a medicinal fungus widely used in Traditional Chinese Medicine (TCM). In TCM, Fu Ling is classified as a sweet, bland, and neutral herb that primarily enters the heart, spleen, lung, and kidney meridians. It is traditionally used to promote urination, strengthen the spleen, calm the mind, and resolve dampness. According to TCM theory, deficiency of the spleen (often correlated with weak digestion and reduced appetite) can lead to poor appetite, bloating, and fatigue. Fu Ling is commonly prescribed in classic formulas such as Si Jun Zi Tang (Four Gentlemen Decoction) to support a deficient spleen and, consequently, improve appetite and digestion. However, the evidence for its use in appetite enhancement is largely based on traditional use and clinical experience rather than rigorous scientific investigation. Some modern studies have explored Fu Ling’s effects on gastrointestinal function, but these have not specifically focused on appetite or have been limited in scope and quality. Thus, while Fu Ling’s use for deficient appetite is well-established in the context of TCM, there is a lack of high-quality clinical trials to confirm its efficacy by modern scientific standards. The evidence rating reflects this reliance on tradition rather than robust scientific validation.

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