Herbier des Anciens Volume II — Plants of Asia FR · EN
Lagerstroemia speciosa, Lagerstroemia speciosa
Lagerstroemia speciosa — tradition of Asia
Entry No. 389 · Asia

Lagerstroemia speciosa

Lagerstroemia speciosa
Origin
Asia
Part used
Leaves
Tradition
Traditional ethnobotany

Native to Southeast Asia's damp forests, Lagerstroemia speciosa, better known as Banaba, has long adorned gardens and temples for the beauty of its purple flowers. But beyond its decorative foliage, the ancient herbalists of the Philippines and India knew it above all for its leaves, infused from generation to generation to help with the body's balance.

II.

Traditional uses

Blood sugar balance

Traditional blood sugar support

In the Philippines, Banaba leaf infusion is traditionally drunk after meals to help with sugar metabolism. This use is among the oldest and most documented of the plant.

Digestive

Digestive comfort after meals

The leaf tea was also consumed to soothe digestive heaviness and ease the transition after heavy meals.

Urinary system

A mild traditional diuretic use

In Philippine folk pharmacopeia, Banaba is sometimes cited as a plant promoting urinary elimination.

General well-being

An everyday traditional tonic

Used as a regular drink, the Banaba leaf was seen as a general support for well-being, to be integrated into daily habits rather than as an occasional course.

Precautions

What to know before use

Due to its traditionally reported action on blood sugar, this plant should never be combined with antidiabetic treatment without prior medical advice, due to a risk of hypoglycemia. Not recommended for pregnant or breastfeeding women, for lack of sufficient safety data. Prolonged or high-dose use is not recommended without supervision by a health professional. To be avoided in people on regular medication treatment, due to possible interactions not fully documented.

Learn more →

The detailed notebook

Traditional dosage, step-by-step preparation, precautions, and known interactions.
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Where to find it

Partner herbalists — available with the detailed notebook.

Sources

PFAF, Wikipedia

Content for historical and informational purposes — not a substitute for medical advice. Herbier des Anciens