Glehnia littoralis

Why You Need It

• Soothes Dry Throats & Coughs: Acts as a mucilage-rich demulcent, coating the throat to reduce irritation and suppress dry, hacking coughs.
• Boosts Fluid Production: In herbal terms, it 'generates fluids' (Jin Ye), making it excellent for relieving thirst and dry mouth, especially during winter or fever.
• Supports Lung Health: Helps moisten the lungs, protecting them from dryness caused by pollution, smoke, or dry air conditioning.
• Anti-inflammatory: Contains compounds like umbelliferone that help reduce inflammation in the respiratory tract.

Deep Dive

Glehnia root works by increasing the secretion of fluids in the upper respiratory tract and stomach. Unlike harsh stimulants, it calms the system. It is particularly beneficial for those experiencing 'False Heat' symptoms—like a dry, scratchy throat without an active infection. Modern research indicates it possesses significant antioxidant properties, protecting cells from oxidative stress. It is often used in formulas to support the immune system by maintaining the integrity of the mucosal barrier, your first line of defense.

Natural Food Sources

While Glehnia root itself is a specific medicinal herb, it is often paired with common food ingredients to enhance its effects. The root is rarely found in standard grocery stores but is available in Asian herbal markets.

Supplementation

Dosage:

• Tea/Decoction: 10–15 grams of dried root simmered in water daily.
• Powder: 3–5 grams mixed with warm water.

Who should use it?

• Individuals with chronic dry throat or mild, dry coughs.
• People recovering from fever who have lost fluids.
• Those exposed to dry environments (heaters, AC).

Who should avoid?

• People with viral infections presenting with chills or copious clear phlegm (it is too cooling).