Chi Xiao Dou-Red Bean (Phaseoli Semen)

Chi Xiao Dou 赤小豆 红小豆 - Red Bean, derived from the small red seeds of Vigna umbellata (formerly Phaseolus calcaratus), is a unique legume in Traditional Chinese Medicine (TCM) that bridges food and medicine. Unlike common adzuki beans (Vigna angularis), its elongated shape and stronger diuretic action make it particularly valuable for damp-heat conditions.

Key Benefits
Drains Dampness (利水消肿) – Addresses edema (especially lower body) and damp-heat jaundice.
Promotes Pus Discharge (排脓) – Traditional use for abscesses and skin infections.
Detoxifies (解毒) – Helps clear heat-toxins in early-stage sores.
Nutritional Support – Rich in protein and fiber while being therapeutic.

Dosage & Administration
Decoction: 9–30g (boil minimally to preserve nutrients).
Topical Paste: Ground with vinegar for external swellings.
Congee: 50g cooked with Yi Yi Ren for chronic edema.
Classic Formulas:
Ma Xing Yi Gan Tang – For wind-water edema.
Chi Xiao Dou Dang Gui San – For damp-heat in lower burner.

Characteristics
Taste: Sweet, slightly sour.
Nature: Neutral with mild cooling tendency.

Safety Notes
Excessive use may cause mild dehydration.
Contraindicated in yin deficiency with dry mouth.
Safe for long-term use at food-grade doses.

Traditional applications described for educational purposes. Professional guidance recommended for therapeutic use.