How much fiber is in tuna?
Tuna has 0 grams of fiber. Fiber comes from plants, and tuna is not a plant food, so no serving size changes that. USDA lists 3 ounces, canned in water (85 grams) at 0 grams of fiber.
0gof fiber in 3 ounces, canned in water
0% of a 25 gram day
Fiber in tuna by serving size
| Serving | Weight | Fiber |
|---|---|---|
| 3 oz | 85g | 0g |
| 1 can | 165g | 0g |
| 100 grams | 100g | 0g |
Zero fiber
Tuna has no fiber, canned or fresh, in water or in oil. Fish is not a plant.
A tuna sandwich
Tuna on two slices of whole wheat bread has 3.8 grams of fiber, all from the bread. Add a cup of chopped bell pepper on the side and it is 6.9.
Add fiber to a meal with tuna
- Black beans: 15 grams in 1 cup, cooked
- Avocado: 9.2 grams in 1 avocado
- Whole wheat bread: 1.9 grams in 1 slice
Tuna is one of 10 foods in this library with no fiber. See them all, each with a plant to pair it with, in foods with no fiber.
Not sure what your daily number should be? The fiber calculator works it out from your age and sex. For a longer list to shop from, see 50 high-fiber foods ranked by fiber.
Questions about fiber in tuna
- Does tuna have fiber?
- No. USDA FoodData Central lists tuna at 0 grams of fiber per 100 grams. Fiber is found in plant foods.
- Is there any fiber in 3 ounces, canned in water?
- No. 3 ounces, canned in water weighs 85 grams and has 0 grams of fiber.
- What can I eat with tuna to add fiber?
- Black beans add 15 grams in 1 cup, cooked. Avocados add 9.2 grams in 1 avocado. Whole wheat bread adds 1.9 grams in 1 slice.
- Does tuna count toward my daily fiber goal?
- No. Tuna adds nothing to a 25 gram or 38 gram daily fiber goal. It can still be part of a high-fiber meal when you eat it with plants.
Source: USDA FoodData Central, Fish, tuna, light, canned in water, without salt, drained solids, retrieved November 5, 2026. Label terms follow the FDA's 28 gram Daily Value for fiber.