It's common to feel irritable and tense before menstruation. During this time, the diet should focus on promoting Qi flow and soothing the liver, and it is not suitable to take tonics. Besides its blood-nourishing effect, donkey-hide gelatin also has a hemostatic effect. Taking it during menstruation can cause menstrual irregularities, such as reduced flow or incomplete discharge.
Generally, it is recommended that the week after menstruation is the golden period for women to replenish blood. During this time, women with blood deficiency or anemia will get the best blood-nourishing effects from donkey-hide gelatin. It can be combined with iron-rich, calcium-rich, and protein-rich blood-nourishing foods like red meat and red dates to achieve twice the result with half the effort.