How much fiber is in radishes?
0.9 gfiber in ½ cup, sliced, raw (58 g)
That’s 3% of the Daily Value, under the 10% the FDA calls a good source. It still adds up over a day.

- Per serving
- 0.9 g
- Daily Value
- 3%
- Per 100 g
- 1.6 g
- In vegetables
- #62 of 73
Soluble and insoluble fiber
Soluble 0.2 g (17%)Insoluble 0.8 g (83%)
Soluble fiber turns to gel and helps with cholesterol and blood sugar. Insoluble fiber adds bulk and keeps you regular.
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 |
| 62 | ½ cup, sliced, raw | 0.9 g | 3% |
Questions
How much fiber is in radishes?
Radishes has 0.9 g of fiber in ½ cup, sliced, raw (58 g), 3% of the Daily Value. That’s 1.6 g of fiber per 100 g.
Is radishes high in fiber?
Not especially. One serving gives 3% of the Daily Value, under the 10% the FDA calls a good source.
Is the fiber in radishes soluble or insoluble?
Both. A serving has 0.2 g of soluble and 0.8 g of insoluble fiber, so it’s 17% soluble.
How does radishes compare with other vegetables?
It ranks #62 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 radishes?
Jicama has 5.9 g in 1 cup, sliced, raw. That’s 5 g more than a serving of radishes. Also try fennel (2.7 g) or red bell pepper (2.5 g).
Fiber: USDA FoodData Central, SR Legacy, FDC ID 169276. Values are for the serving shown and vary with variety and cooking.