Can cancer patients take Rehmannia glutinosa (Sh熟地黄)?

For cancer patients with stable conditions who require adjuvant treatment with traditional Chinese medicine, Rehmannia glutinosa (Shu Di Huang) can generally be taken under a physician's guidance. However, for those with more severe conditions, its use is typically not recommended. If any discomfort occurs, prompt medical consultation is advised.

Rehmannia glutinosa, a traditional Chinese herbal medicine, is believed to nourish yin and benefit the kidneys, as well as enrich blood and calm the mind. During cancer treatment, such as in the post-surgical recovery period or during chemotherapy intervals, patients often have weakened physical conditions and may experience deficiency of both qi and blood. In such cases, appropriate use of Rehmannia glutinosa may help replenish nutrients, enhance immune function, and promote recovery.

However, Rehmannia glutinosa has a greasy nature and may be difficult to digest and absorb. For individuals with excessive damp-heat, weak spleen and stomach function, or excessive phlegm, its consumption may worsen symptoms and hinder recovery. Additionally, certain cancer patients, such as those with nasopharyngeal cancer, thyroid cancer, or breast cancer, should exercise particular caution when taking Rehmannia glutinosa, as it may interact with treatment medications and affect therapeutic outcomes.

Under no circumstances should patients decide independently to use medications or health supplements; such decisions should always be made under the guidance of a physician to ensure safety and efficacy. At the same time, maintaining a healthy lifestyle—including a balanced diet, moderate exercise, and adequate rest—can support the recovery of cancer patients.