Choy (also known as bok choy, pak choi, or Chinese cabbage) is a leafy green vegetable prized for its mild flavor and crisp texture. It is a staple in Asian cuisine and a popular choice for low-calorie, nutrient-dense meals. This calculator helps you determine the dietary fiber content of choy per 100 grams, based on the specific variety and preparation method.
Whether you are tracking your daily fiber intake for digestive health, managing blood sugar levels, or planning a balanced diet, knowing the exact fiber content of choy can be valuable. Different types of choy — such as baby bok choy, Shanghai bok choy, or mature bok choy — have slightly different fiber profiles. Use this tool to get accurate, per-100g values for your meal planning or nutrition logging.
🥬 Choy Fiber Per 100g
How to Use This Tool
Select the variety of choy you are using from the dropdown menu. Then choose the preparation method — raw, boiled, steamed, or stir-fried (without oil). Click the Calculate button to see the dietary fiber content per 100 grams. You can also use the preset buttons for quick common combinations. The result shows the fiber in grams, along with a brief note on the data source.
Formula Explained
The fiber values are derived from the USDA FoodData Central database, which provides standardized nutritional profiles for thousands of foods. For choy, the fiber content varies by variety and cooking method because cooking can break down some insoluble fiber and reduce water content, concentrating the fiber slightly. The formula is simply a lookup: for each combination of variety and preparation, a specific fiber value (in grams per 100g) is assigned based on published averages.
Worked Examples
Example 2: You are stir-frying choy sum without oil. Select "Choy Sum" and "Stir-fried (no oil)". The result is 2.1 g per 100 g. For a 200 g serving, that is 4.2 g of fiber — a significant contribution to the daily recommended intake of 25–30 g.
Tips & Best Practices
- For the most accurate fiber count, weigh your choy before cooking if you are using the "raw" option, or after cooking if using a cooked option.
- If you add oil or sauce during cooking, the fiber content per 100g will be slightly diluted because of the added weight. This calculator assumes no added fat or liquid.
- Choy is also a good source of vitamin K, vitamin C, and calcium. Pair it with a source of healthy fat (like olive oil) to aid absorption of fat-soluble vitamins.
Frequently Asked Questions
Q: Is the fiber in choy soluble or insoluble?
A: Choy contains both types, but the majority is insoluble fiber, which adds bulk to stool and supports regular bowel movements. Soluble fiber, which helps lower blood cholesterol, is present in smaller amounts.
Q: Can I use this calculator for other leafy greens like spinach or kale?
A: No, this calculator is specific to choy varieties. For other greens, please use a dedicated tool or refer to a comprehensive nutrition database. You may find our avocado fiber calculator useful for a different source of fiber.
Q: Why does cooking reduce the fiber content?
A: Cooking does not destroy fiber, but it can leach some soluble fiber into the cooking water. Boiling, in particular, may cause a small loss. The values here reflect typical drained, cooked choy.
Reference Data
| Variety | Raw | Boiled | Steamed | Stir-fried |
|---|---|---|---|---|
| Baby Bok Choy | 1.5 g | 1.2 g | 1.3 g | 1.4 g |
| Shanghai Bok Choy | 1.8 g | 1.5 g | 1.6 g | 1.7 g |
| Mature Bok Choy | 2.0 g | 1.7 g | 1.8 g | 1.9 g |
| Choy Sum | 2.2 g | 1.9 g | 2.0 g | 2.1 g |
Data sourced from USDA FoodData Central (2023). Values are in grams of dietary fiber per 100 grams of edible portion.