Food · Staple foods
Goya (Bitter Melon)
ゴーヤ (Gōya)
Also known as: Nigauri, Reishi (Okinawan), Momordica charantia, Bitter gourd
At a glance
| Category | Food |
|---|---|
| INCI name | Momordica Charantia Fruit Extract |
| Common Japanese notations | ゴーヤ, ニガウリ, 苦瓜 |
| Origin | Plant-derived (Momordica charantia fruit, seeds, and whole-plant powder) |
| Typical functions | Antioxidant, Traditional digestive / metabolic positioning |
| Regulatory status in Japan | Traditional food ingredient. Supplement applications follow general dietary supplement rules. |
Goya (bitter melon) is a staple of Okinawan cuisine with 500+ years of cultivation on the Ryukyu Islands. Beyond the iconic goya chanpuru dish, whole-plant powder (including seeds and pith) is now widely used in supplement and functional-food contexts. The Blue Zone literature has elevated its international profile.
Classification
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Product applications
Functions
Regulatory tags
Origin
Used in (typical product categories)
Finished-product categories that commonly include this ingredient in Japanese-market formulations.
- Goya powder
- Juice concentrates
- Supplements
- Traditional food dishes
What it is
Momordica charantia is a tropical vine yielding highly bitter fruit. Key compounds include momordicin, charantin, vicine, and vitamin C. Commercial powders often include the seeds and inner membrane, preserving the full compound profile.
Forms range from culinary fresh fruit to dried slices, whole-plant powder (10–100 kg MOQ from Japanese processors), and concentrated extracts for supplement formulations.
Typical uses in Japanese products
Traditional Okinawan cuisine (goya chanpuru, goya salad, goya tempura).
Functional powder applications — smoothies, baked goods, wellness formulations.
Dietary supplements marketed for antioxidant or metabolic-support positioning; claims vary by jurisdiction.
Regulatory classification in Japan
Long-standing traditional food ingredient; no specific restriction at normal dietary levels.
High-potency extracts for supplement use should follow general dietary-supplement labeling norms; medical claims are not permitted.
Regulatory classification in other markets
| USA | Food ingredient; DSHEA pathway for supplements. |
|---|---|
| EU | Novel food assessment may apply to high-potency extract preparations; traditional whole-plant preparations often fall outside novel food scope (verify case by case). |
Example products
Example finished products will be added after verification. Organic JAS certification is available through multiple Kyushu-region producers.
All brand names and product names referenced anywhere on this site are the property of their respective owners. Example entries are provided for informational purposes only and do not imply endorsement.
Related ingredients
References
- Okinawa Prefectural Agricultural Research Center
- Japan Food Functional Analysis Research Institute — residual pesticide testing samples
Last updated: 2026-04-23. Ingredient entries are reviewed at least annually against current regulatory listings.