Chinese Date Classic Formulas … Natural Herb Library

Primary Actions

Tonifies Spleen and Stomach qi - Da Zao is a classic deficiency-support fruit for fatigue, weak appetite, loose stool, and recovery after illness or overwork.
Nourishes blood and calms the spirit - traditional use includes irritability, palpitations, and insomnia when Heart-Spleen support has been depleted.
Moderates harsh herbs and protects middle qi - one of its most important classical functions is to soften the effects of bitter, acrid, or drastic medicinals.
Assists the harmonization of nutritive and defensive qi - especially in formula pairings with Sheng Jiang in exterior-relieving prescriptions.

Gui Zhi Tang - Da Zao with Sheng Jiang harmonizes the nutritive and defensive qi while supporting the middle.
Gan Mai Da Zao Tang - famous spirit-calming formula in which Da Zao nourishes deficiency and eases restlessness.
Gui Pi Tang - Da Zao supports the Spleen, nourishes blood, and helps calm palpitations and insomnia from Heart-Spleen deficiency.

American Dragon and multiple TCM teaching references describe Da Zao as sweet and warm, entering the Spleen and Stomach and often extending to Heart involvement through blood and Shen support.
Traditional formula usage repeatedly shows Da Zao protecting Stomach qi and softening the harshness of stronger herbs rather than acting only as a simple food tonic.
The classic pairing with Sheng Jiang is especially important for harmonizing the middle and the nutritive-defensive interface in exterior formulas.