How much fiber is in walnuts?
1.9 gfiber in 1 oz (14 halves) (28 g)
That’s 7% of the Daily Value, under the 10% the FDA calls a good source. It still adds up over a day.

- Per serving
- 1.9 g
- Daily Value
- 7%
- Per 100 g
- 6.7 g
- In nuts and seeds
- #15 of 25
Soluble and insoluble fiber
Soluble 0.2 g (8%)Insoluble 1.7 g (92%)
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 nuts and seeds
| # | Food | Serving | Fiber | % DV | Soluble · insoluble |
|---|---|---|---|---|---|
| 1 | 1 oz | 9.6 g | 34% | ||
| 2 | 1 oz | 4.6 g | 16% | ||
| 3 | 1 piece (2 x 2 x ½ inch) | 4.1 g | 15% | No split data | |
| 4 | 2 tbsp, ground | 3.8 g | 14% | ||
| 5 | 1 oz (23 almonds) | 3.5 g | 13% | ||
| 15 | 1 oz (14 halves) | 1.9 g | 7% |
Questions
How much fiber is in walnuts?
Walnuts has 1.9 g of fiber in 1 oz (14 halves) (28 g), 7% of the Daily Value. That’s 6.7 g of fiber per 100 g.
Is walnuts high in fiber?
Not especially. One serving gives 7% of the Daily Value, under the 10% the FDA calls a good source.
Is the fiber in walnuts soluble or insoluble?
Both. A serving has 0.2 g of soluble and 1.7 g of insoluble fiber, so it’s 8% soluble.
How does walnuts compare with other nuts and seeds?
It ranks #15 of 25 nuts and seeds in FiberKit by fiber per serving. Chia seeds leads with 9.6 g in 1 oz.
What’s a higher-fiber swap for walnuts?
Almonds has 3.5 g in 1 oz (23 almonds). That’s 1.6 g more than a serving of walnuts. Also try roasted pistachios (2.9 g) or pecans (2.7 g).
Fiber: USDA FoodData Central, SR Legacy, FDC ID 170187. Values are for the serving shown and vary with variety and cooking.