Can I take Rehmannia root during lactation?
Generally speaking, it is acceptable for women who are breastfeeding to consume prepared rehmannia (Shu Di Huang), but it should be taken in appropriate amounts under the guidance of a physician. Detailed explanations are as follows:

Prepared rehmannia is a traditional Chinese herb known for its functions of nourishing blood and yin, enriching essence, and replenishing marrow. It is commonly used to treat symptoms such as pallor due to blood deficiency, palpitations, irregular menstruation, and related conditions. During lactation, women may experience physical weakness and insufficient milk supply due to depletion of qi and blood during childbirth. Consuming prepared rehmannia in appropriate amounts can help regulate the body and promote lactation.
Although prepared rehmannia offers certain benefits to breastfeeding women, as a traditional Chinese medicine, its use should be guided by a physician. The physician will formulate a suitable treatment plan based on the woman's individual health condition and needs, ensuring both safety and effectiveness. However, it is important to note that prepared rehmannia is sticky in nature and difficult to digest; excessive consumption may burden the gastrointestinal system and cause indigestion or similar symptoms.
While using prepared rehmannia, breastfeeding women should closely monitor their body's response. If symptoms such as nausea, vomiting, or diarrhea occur, consumption should be stopped immediately and medical advice should be sought promptly. Additionally, breastfeeding women should maintain a balanced and diverse diet, ensuring adequate intake of foods rich in protein, vitamins, and minerals to meet the nutritional needs of both themselves and their babies. It is also advisable to avoid overly greasy, spicy, or irritating foods, which may affect the quality of breast milk and the baby's health.