Astragalus (Huang Qi)

Overview

Astragalus root, Huang Qi, from Astragalus membranaceus, is the leading qi tonic of Chinese medicine. Sweet and slightly warm, it enters the spleen and lung meridians, and is traditionally said to raise the sinking yang and consolidate the exterior, the bodys defensive energy. Modern research has focused on its polysaccharides for immune support.

Traditional Uses in TCM

• Weak defensive qi: for people who catch every cold going around, sweat easily and tire quickly; classic formulas like Yu Ping Feng San combine astragalus with white atractylodes and siler.
• Low energy and prolapse: for fatigue, sagging, and organ prolapse patterns, astragalus raises the qi (Bu Zhong Yi Qi Tang).
• Slow-healing wounds and ulcers: it generates flesh and supports recovery after illness.
• Fluid retention from qi deficiency: puffiness and heaviness that improve with warming tonics.

How to Use

Sliced root, 9 to 30 grams, is simmered long in decoctions or soups; the slices are removed before serving. At home, add a handful of slices to chicken or pork soup and simmer for an hour or more, or steep slices in a thermos as a daily tea in flu season. The taste is mildly sweet and starchy.

Safety and Cautions

Avoid astragalus during an acute infection with fever; TCM considers it tonifying and says it can trap a pathogen inside. It is also contraindicated in true heat patterns and excess conditions. People on immunosuppressant medication should consult their doctor, as should those on blood pressure or blood thinning drugs at concentrated doses. Food-level use in soups is gentle and traditional.