Nut & Seed

How much fiber is in chestnuts?

Chestnuts have 1.8 g of fiber per 1/4 cup roasted (36 g). That is 6% of the daily value and a moderate amount for a nut & seed.

1.8g

per 1/4 cup roasted

per 100 g

daily value

#15of 21

nuts and seeds

Soluble vs insoluble

Soluble 0.4g 22% Insoluble 1.4g 78%

The split is approximate and comes from USDA SR Legacy analyses where available. Soluble fiber dissolves into a gel and is the type most linked to cholesterol and blood sugar effects. Insoluble fiber adds bulk and keeps things moving.

About chestnuts and fiber

A quarter cup of roasted chestnuts provides 1.8 grams of fiber. Chestnuts are starchy rather than fatty, which makes them unusual among nuts.

Counts toward plant diversityLow FODMAP at this serving

How chestnuts compares to other nuts and seeds

Per typical serving. The highest nut & seed in the database is chia seeds at 9.8 g.

Food	Serving	Fiber	Per 100 g	% DV
Sesame Seeds	2 tbsp	2.1 g	11.7 g	8%
Walnuts	1/4 cup	2 g	6.7 g	7%
Pumpkin Seeds	1/4 cup	1.9 g	5.9 g	7%
Chestnuts	1/4 cup roasted	1.8 g	5 g	6%
Peanut Butter	2 tbsp	1.6 g	5 g	6%
Coconut Flakes	2 tbsp	1.5 g	15 g	5%
Tahini	2 tbsp	1.4 g	4.7 g	5%

All 21 nuts and seeds ranked by fiber

Servings to reach a daily goal

14×

servings of chestnuts to reach 25 g, the adequate intake for adult women

22×

servings of chestnuts to reach 38 g, the adequate intake for adult men

Nobody should get all their fiber from one food. Gut bacteria respond to variety, and the fiber calculator shows a mixed day that reaches your number.

USDA entries for chestnuts

Grams of fiber per 100 g from USDA FoodData Central (snapshot 2026-10-11). Different preparations and varieties explain the spread.

USDA description	Fiber / 100 g	Soluble	Insoluble
Nuts, chestnuts, european, raw, unpeeled	8.1 g	–	–
Chestnuts	5.1 g	–	–
Nuts, chestnuts, european, roasted	5.1 g	–	–
Nuts, chestnuts, european, dried, unpeeled	11.7 g	–	–

Frequently asked questions

How much fiber is in chestnuts?

1/4 cup roasted of chestnuts, about 36 grams, contains 1.8 grams of dietary fiber. That is 5 grams of fiber per 100 grams and 6% of the 28 gram daily value.

Are chestnuts high in fiber?

Not especially. Chestnuts have 1.8 g per serving, which ranks 15 of 21 nuts and seeds in the FiberUp database. It still counts toward plant diversity, but the fiber in a meal will come from elsewhere.

Is the fiber in chestnuts soluble or insoluble?

About 22% of the fiber in chestnuts is soluble (0.4 g) and 78% is insoluble (1.4 g). Soluble fiber forms a gel that slows digestion and feeds gut bacteria; insoluble fiber adds bulk and speeds transit.

How many servings of chestnuts would reach a daily fiber goal?

It would take about 14 servings to reach 25 g (the adequate intake for adult women) and 22 servings to reach 38 g (adult men). Spreading fiber across several foods is easier and better for gut bacteria diversity.

Values are per typical serving from USDA FoodData Central and standard references, rounded to one decimal. Actual fiber varies with variety, ripeness, and preparation. This is general nutrition information, not medical advice.