Calories in Bok Choy: Per 100 g, Per Serving & Nutrition Facts
13 kcal (54 kJ) per 100 g · P/F/C 1.5/0.2/2.2 g
Serving (100 g) — 13 kcal (54 kJ) · Nutri-Score A
Per 100 g: sugar: low saturated fat: low salt: low fiber: low
Is bok choy healthy?
Yes. On its nutrient profile, bok choy is a healthy choice: grade A on the open 2023 Nutri-Score algorithm, the top grade.
For
- Low in calories: 13 kcal per 100 g.
- Counts toward your fruit and vegetables: a 100 g serving is 25% of the 400 g a day the WHO advises.
A typical serving is 100 g: 13 kcal, 1.5 g protein, 0.2 g fat and 2.2 g carbs. Other weights in the table.
How we judge this, and the sources
The answer comes from the food's composition, not from opinion: its Nutri-Score grade on the open 2023 algorithm, a traffic light for sugar, salt, saturated fat and fiber per 100 g, and the share of daily reference amounts in a typical serving (for salt, sugar, fiber and vegetables, those of the WHO). It rates the food's nutrient profile; it is not medical advice. Formulas, thresholds and every source are on the methodology page; last checked against the sources on September 30, 2026. The short food description was written by our language model (AI) — how we check the text.
Bok choy is a Chinese cabbage with crisp stalks and dark leaves — about 13 calories per 100 g, with vitamins A, C and K.
How many calories in bok choy: per 100 g and per serving
| Nutrient | Per 100 g | Serving: 100 g |
|---|---|---|
| Calories | 13 kcal | 13 kcal |
| Energy (kilojoules) | 54 kJ | 54 kJ |
| Protein | 1.5 g | 1.5 g |
| Fat | 0.2 g | 0.2 g |
| incl. saturated | 0 g | 0 g |
| Total carbohydrates | 2.2 g | 2.2 g |
| incl. sugars | 1.2 g | 1.2 g |
| incl. fiber | 1 g | 1 g |
| Salt | 0.2 g | 0.2 g |
*Where the numbers come from
Values per 100 g come from a single record of an open food composition table: USDA FoodData Central, FDC ID 170390, “Cabbage, chinese (pak-choi), raw” — the measured composition of this exact food, not an average across tables. Rounded. Carbohydrates are total carbohydrate, fiber included, as on a US Nutrition Facts label; salt is sodium × 2.5. Table licenses are on the data sources page.
protein 48%fat 14%carbs 38%
Vitamins and minerals in bok choy
Per 100 g, the standouts are vitamin C — 45 mg, 50% of the Daily Value; vitamin K — 46 mcg, 38% of the Daily Value; vitamin A — 223 mcg, 25% of the Daily Value.
| Nutrient | Per 100 g | Serving: 100 g | % DV |
|---|---|---|---|
| Vitamin A | 223 mcg | 223 mcg | 25% |
| Vitamin C | 45 mg | 45 mg | 50% |
| Vitamin K | 46 mcg | 46 mcg | 38% |
| Thiamin (B1) | 0.04 mg | 0.04 mg | 3% |
| Riboflavin (B2) | 0.07 mg | 0.07 mg | 5% |
| Niacin (B3) | 0.5 mg | 0.5 mg | 3% |
| Vitamin B6 | 0.19 mg | 0.19 mg | 11% |
| Folate (B9) | 66 mcg | 66 mcg | 17% |
| Potassium | 252 mg | 252 mg | 5% |
| Calcium | 105 mg | 105 mg | 8% |
| Magnesium | 19 mg | 19 mg | 5% |
| Phosphorus | 37 mg | 37 mg | 3% |
| Iron | 0.8 mg | 0.8 mg | 4% |
| Copper | 0.02 mg | 0.02 mg | 2% |
| Manganese | 0.16 mg | 0.16 mg | 7% |
*Where the vitamin numbers come from
Vitamins and minerals come from the USDA FoodData Central record “Cabbage, chinese (pak-choi), raw” (FDC ID 170390, SR Legacy; public domain), checked October 14, 2026; the record was matched to this food by calories, protein and fat. % DV is per serving, against the FDA Daily Values used on Nutrition Facts labels (2,000-calorie diet). The table lists nutrients that reach at least 2% DV per 100 g; the rest are absent or trace. Varieties, seasons and brands differ, and cooking in water leaches some vitamin C and B vitamins.
Bok Choy calories by weight, 50–300 g
150 g of bok choy has 20 calories and 200 g has 26. The table gives protein, fat and carbs for each weight; for any other amount, type your own into the calculator below.
| Weight | Kcal | P / F / C, g | Fiber, g |
|---|---|---|---|
| 50 g | 6.5 | 0.8 / 0.1 / 1.1 | 0.5 |
| 100 g — typical serving | 13 | 1.5 / 0.2 / 2.2 | 1 |
| 150 g | 20 | 2.3 / 0.3 / 3.3 | 1.5 |
| 200 g | 26 | 3 / 0.4 / 4.4 | 2 |
| 250 g | 33 | 3.8 / 0.5 / 5.5 | 2.5 |
| 300 g | 39 | 4.5 / 0.6 / 6.6 | 3 |
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Bok Choy: swaps and alternatives
No need to swap: bok choy already gets grade A, the top of the scale, and nothing is in the red on the per-100 g traffic light: sugar 1.2 g (red is over 22.5 g), saturated fat 0 g (over 5 g) and salt 0.2 g (over 1.5 g). We only suggest a swap when it fixes a real problem. How we pick swaps.
Equally good alternatives
Same food group and the same place on the plate, with a Nutri-Score grade at least as good. Figures are for 100 g, a typical serving of bok choy.
Bok Choy vs similar foods: calories compared
| Per 100 g | Kcal | P / F / C, g |
|---|---|---|
| Bok Choy | 13 | 1.5 / 0.2 / 2.2 |
| Romaine Lettuce | 17 | 1.2 / 0.3 / 3.3 |
| Cherry Tomatoes | 18 | 0.9 / 0.2 / 3.9 |
| Tomatoes | 20 | 1.1 / 0.2 / 4.9 |
| Mushrooms | 22 | 3.1 / 0.3 / 3.3 |
| Asparagus | 22 | 2.4 / 0.2 / 4 |
| Spinach | 23 | 2.9 / 0.4 / 3.6 |
FAQ
How many calories are in 100 g of bok choy?
100 g of bok choy has 13 calories, with 1.5 g protein, 0.2 g fat and 2.2 g carbohydrates (1 g fiber).
How many calories are in a serving of bok choy?
A 100 g serving has 13 calories: 1.5 g protein, 0.2 g fat and 2.2 g carbs.
What are the macros of bok choy?
Per 100 g: 1.5 g protein, 2.2 g carbs and 0.2 g fat. By calories that's about 48% protein, 38% carbs and 14% fat.
What vitamins and minerals are in bok choy?
Per 100 g, bok choy is richest in vitamin C (45 mg, 50% DV), vitamin K (46 mcg, 38% DV), vitamin A (223 mcg, 25% DV) — from USDA FoodData Central record 170390.
How much fiber is in bok choy?
100 g of bok choy has 1 g of fiber — 4% of the 25 g a day the WHO recommends.