Japanese Mulberry Leaves Tea

A pleasantly mild Japanese herbal tea with subtle herbal notes and a hint of natural sweetness.

Mulberry leaves naturally contain a compound called DNJ (1-deoxynojirimycin), which inhibits enzymes in the intestines that break down carbohydrates into sugars, helping moderate the rise in blood sugar after eating. See the references below.

Often consumed before or with a meal.

• Slow Carbohydrate Digestion & Inhibit Starch Breakdown
• Moderate Post-Meal Blood Sugar Spikes
• Support Cardiovascular Health
• Provide Powerful Antioxidant Support

Known as Kuwa-no-ha Cha in Japanese.

Easy to prepare. See how below.

Serve hot, cold, or over ice.

Wild-Harvested • All-Natural • Pesticide-free

Wild-harvested in the subtropical highlands of Miyazaki Prefecture and cut into strips using the traditional Japanese tanzaku-giri method for optimal brewing.

How to Brew

Quick Brew Method

1. Add 5–6 g (2 heaping tablespoons) of mulberry leaves to a pot.
2. Add 4 cups of near-boiling water.
3. Brew for about 3 minutes.
4. Strain and serve hot, cold, or over ice.

Traditional Japanese Brew Method (Senjiru)

This traditional Japanese brewing method yields a deeper infusion.

1. Pour a little more than 4 cups of cold water into a pot.
2. Add 2 heaping tablespoons of mulberry leaves.
3. Heat to a full, rolling boil.
4. Turn the heat down and simmer for 15 minutes.
5. Turn the heat off and wait for 10 minutes.
6. Strain and serve.

References

• Food-Grade Mulberry Powder Enriched with 1-Deoxynojirimycin Suppresses the Elevation of Postprandial Blood Glucose in Humans - Journal of Agricultural and Food Chemistry. 2007;55(14):5869–5874. DOI: 10.1021/jf062680g.
• Effect of Mulberry Leaf Extract with Enriched 1-Deoxynojirimycin Content on Postprandial Glycemic Control in Subjects with Impaired Glucose Metabolism - Journal of Diabetes Investigation. 2011;2(4):318–323. DOI: 10.1111/j.2040-1124.2011.00101.x.
• Mulberry Leaf Extract Improves Postprandial Glucose Response in Prediabetic Subjects: A Randomized, Double-Blind Placebo-Controlled Trial - Journal of Medicinal Food. 2015;18(3):306–313. DOI: 10.1089/jmf.2014.3160.
• Mulberry Leaf and Its Effects Against Obesity: A Systematic Review of Phytochemistry, Molecular Mechanisms and Applications - Phytomedicine. 2024;128:155528. DOI: 10.1016/j.phymed.2024.155528.