It has the effect of drying dampness, strengthening spleen and dispelling cold.
This can be regarded as pica, and it can also be regarded as a situation in which the human body likes to eat whatever it lacks.
Then according to the above analysis, your girlfriend may have symptoms of yang deficiency such as being afraid of cold.
If there is no such situation, the problem may be more serious.
In this case, you should not directly and forcibly refuse her request or stop her. TCM decoction can be used for syndrome differentiation treatment.
You can tell her that we should have a baby. Tomorrow we'll go to an old Chinese doctor to recuperate and get well. Before that, you can tell the old Chinese doctor about it, and then ask the old Chinese doctor to prescribe a prescription for her to recuperate.