Produce

Island Carrot (Shima-ninjin)

Slender bright-yellow Okinawan carrot used in stir-fries like champuru.

The island carrot, or shima-ninjin, is a long, slim, bright-yellow carrot grown in Okinawa, Japan. It is sweeter and more aromatic than the common orange carrot and is julienned for stir-fries such as ninjin shirishiri and other champuru dishes. Its golden color comes from a high concentration of carotenes.

Shima-ninjin, or Island Carrot, is a yellow carrot cultivar (Daucus carota subsp. sativus) grown almost exclusively in Okinawa Prefecture, Japan, where it has been cultivated for generations in the island's distinctive red clay and limestone soils. Unlike the orange carrots found in most markets, Shima-ninjin gets its bright yellow color from a lutein-dominant carotenoid profile rather than the beta-carotene that makes orange carrots orange—this means it lacks the earthy, sometimes bitter edge of standard carrots and instead delivers a delicate, mild sweetness that works raw or barely cooked. The vegetable is classified locally as a winter vegetable (fuyu-yasai), reaching its peak sweetness and texture after Okinawa's cool winter months, with the primary harvest running from December through March.

The slender, cylindrical roots—typically 15–25 cm long and 2–3 cm in diameter—cook quickly and evenly, but this is also their downfall: high heat transforms the bright yellow flesh to an unappealing gray within two to three minutes. In Okinawan home cooking, Shima-ninjin is valued not just for its flavor but for its role as a natural sweetener that balances bitter and savory elements, particularly in the iconic champuru stir-fry dishes that define the island's cuisine. Do not confuse this vegetable with Western yellow carrot varieties or specialty 'Dragon' carrots—those are bred for different markets and growing conditions and lack the specific terroir-driven sweetness that defines properly grown Shima-ninjin.

Measured in: piece
Storage: Fridge

Types & varieties

Nakijin Shima-ninjin

Grown specifically in Nakijin village, northern Okinawa; considered particularly sweet among named varieties

Kanko Shima-ninjin

A named cultivar developed for commercial production in central Okinawa

Generic Shima-ninjin

Open-pollinated varieties grown throughout Okinawa for local markets and home gardens

Why Yellow Carrots Behave Differently

The yellow coloration in Shima-ninjin comes from lutein and other xanthophyll carotenoids rather than the beta-carotene dominant in orange carrots. This distinction affects both nutrition and cooking behavior. Lutein is heat-sensitive and water-soluble, which explains why overcooking causes the color to leach out and fade. The different carotenoid profile also correlates with the sweeter, less earthy flavor—beta-carotene itself has a slightly bitter edge that lutein lacks. When shopping for substitutes, look specifically for yellow carrot cultivars rather than assuming any carrot that happens to be pale will behave similarly.

True yellow carrot varieties (Yellowstone, Yellow Bantam) are the closest substitutes; orange carrots are not
Lutein is traditionally valued in the Okinawan diet alongside other lutein-rich foods for eye health

Storage and Freshness

Shima-ninjin deteriorates faster than many root vegetables because of its high sugar and water content. The traditional market practice in Okinawa is to sell and use the carrots within days of harvest. At home, store unwashed in a loose plastic bag in the refrigerator crisper drawer—washing introduces moisture that accelerates decay. For best results, plan to use within one week of purchase, and always wash just before preparation rather than before storing.

Signs of aging include softening of the slender root and a dulling of the yellow color
Frozen Shima-ninjin loses its textural appeal; use fresh only

Common uses

Goya champuru (bitter melon stir-fry with Shima-ninjin, tofu, and egg)Raw shaved into salads for sweetness and color contrastQuick-pickled in rice vinegar and sugar for condiment useNamul (Korean-style seasoned vegetable) preparationJuiced for Okinawan health drinksAdded to soba noodle broths for subtle sweetnessRoasted whole as a side dishIncorporated into Okinawa soba (soup) for garnish

Tips & pitfalls

Do not overcook—Shima-ninjin loses its bright yellow color and turns gray within 2–3 minutes of high heat; blanch or sauté briefly and remove from heat immediately
Peel only if soil is heavy; the thin skin is edible and nutritious when scrubbed clean with a vegetable brush
Store unwashed in the refrigerator; wash just before use to prevent moisture-related decay
The slender shape cooks evenly and quickly—no need to cut into small pieces unless making a fine julienne
When substituting regular carrots, use only the tender outer portion and reduce cooking time by half
Common mistake: adding Shima-ninjin too early in a stir-fry alongside denser vegetables; add it last or blanch first if combining with long-cooking ingredients
The carrots can be eaten raw but benefit from a 45-second blanch first if serving in salads—this brightens color and softens the texture slightly without dulling the yellow
If buying from specialty markets, ask about harvest date; Shima-ninjin sweetens significantly after the cool winter months and is most desirable in January and February

Nutrition

41kcal

Energy

172 kJ · per 100 g

Where the calories come from

Protein 8%Carbs 87%Fat 5%

Protein

0.9g

2% DV

Carbs

9.6g

3% DV

Fat

0.2g

0% DV

Fiber

2.8g

10% DV

Sugars

4.7g

of which

Sodium

69mg

3% DV

Notable micronutrients

Vitamin A93% DV

Vitamin K11% DV

Vitamin B68% DV

Vitamin C7% DV

Potassium7% DV

Thiamin (B1)6% DV

Source · USDA FoodData Central · Carrots, raw

View on FDC →

In the shops

Matched grocery products

Carrots
500 g · Mercadona
€0.85
Carrots
1 kg · Mercadona
€1.35
Baby Carrots
RIOVERDE · kg · Bonpreu
€2.35
Diced Carrot
BONPREU · kg · Bonpreu
€1.25
Carrot 1 unit
ud · Bonpreu
€0.17
ARANCA Carrot
ARANCA · kg · Bonpreu
€1.99

Good to know

Origin: Okinawa Prefecture, Japan (particularly Nakijin and other northern Okinawa villages)
Color: Bright yellow skin and flesh, no orange core
Shape: Slender and cylindrical, typically 15–25 cm long, 2–3 cm diameter
Flavor: Sweeter and more delicate than standard orange carrots; low bitterness
Season: Primarily winter harvest (December through March) in Okinawa's subtropical climate
Classification: Daucus carota subsp. sativus; a yellow carrot cultivar adapted to Okinawan growing conditions
Shelf Life: 1–2 weeks refrigerated in a plastic bag; best used fresh
Growing Method: Open-field cultivation in Okinawa's red clay and limestone soils

Substitutes

Yellow Bantam or Yellowstone carrot — Standard orange grocery-store carrot varieties are poor substitutes; true yellow carrots from specialty growers are closest in sweetness and behavior
Parsnip — Similar sweetness and texture when peeled, but larger and denser; cut into thin sticks to approximate the slender shape and reduce initial cooking time
Young or 'baby' carrots — Standard orange carrot varieties at small size can stand in for raw uses but lack the yellow color and delicate sweetness

Pairs with

Goya (bitter melon)Tofu (firm)EggAwamoriBonito flakes and soy sauceGarlic Satsuma imo (sweet potato)

Also called

Shima-ninjin · Okinawan Carrot