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Sea urchin, "Tsubu-uni" (salted whole gonads): Calories & Nutrition per 100 g (Japan's Official Food Table)

Last updated: 2026-09-17

Sea urchin, "Tsubu-uni" (salted whole gonads) has 172 kcal per 100 g of edible portion, with 17.2 g protein, 5.8 g fat and 15.6 g carbohydrate, according to Japan's official Standard Tables of Food Composition.

Food number10366
Name in Japanese<その他> うに 粒うに
Food groupFish and shellfish

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Nutrition per 100 g (edible portion)

Energy172 kcal
Water51.8 g
Protein17.2 g
Fat5.8 g
Carbohydrate (by difference)15.6 g
Dietary fibre(0) g
Salt equivalent8.4 g
Sodium3300 mg
Potassium280 mg
Calcium46 mg
Iron1.1 mg
Vitamin C0 mg
Cholesterol280 mg

How to read these numbers

Other forms of sea urchin

Source: Ministry of Education, Culture, Sports, Science and Technology (MEXT), Standard Tables of Food Composition in Japan (Eighth Revised Edition), 2023 supplement; English food names from the official English edition (2015). Compiled and reformatted by this website. This page is general information, not dietary or medical advice.

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