How much fiber is in fennel?
2.7 gfiber in 1 cup, sliced, raw (87 g)
That’s 10% of the Daily Value, under the 10% the FDA calls a good source. It still adds up over a day.

- Per serving
- 2.7 g
- Daily Value
- 10%
- Per 100 g
- 3.1 g
- In vegetables
- #22 of 73
Counts toward your 20 plants a week in FiberKit.
Swap for more fiber
Compared with other vegetables
| # | Food | Serving | Fiber | % DV | Soluble · insoluble |
|---|---|---|---|---|---|
| 1 | Acorn squash1 cup, cubes, baked | 1 cup, cubes, baked | 9 g | 32% | |
| 2 | Collard greens1 cup, chopped, cooked | 1 cup, chopped, cooked | 7.6 g | 27% | No split data |
| 3 | 1 medium, cooked | 6.8 g | 24% | ||
| 4 | 1 cup, cubes, baked | 6.6 g | 24% | ||
| 5 | Jicama1 cup, sliced, raw | 1 cup, sliced, raw | 5.9 g | 21% | No split data |
| 22 | 1 cup, sliced, raw | 2.7 g | 10% | No split data |
Questions
How much fiber is in fennel?
Fennel has 2.7 g of fiber in 1 cup, sliced, raw (87 g), 10% of the Daily Value. That’s 3.1 g of fiber per 100 g.
Is fennel high in fiber?
Not especially. One serving gives 10% of the Daily Value, under the 10% the FDA calls a good source.
How does fennel compare with other vegetables?
It ranks #22 of 73 vegetables in FiberKit by fiber per serving. Acorn squash leads with 9 g in 1 cup, cubes, baked.
What’s a higher-fiber swap for fennel?
Jicama has 5.9 g in 1 cup, sliced, raw. That’s 3.2 g more than a serving of fennel.
Fiber: USDA FoodData Central, SR Legacy, FDC ID 169385. Values are for the serving shown and vary with variety and cooking.