Can canned fish fit a keto diet?

More specific food source required

A more specific food source is needed to answer this for canned fish.

The cited USDA composition input has 0 g calculated net carbs for 1 cup (135 g). The official generic canned-fish identity uses jack mackerel, drained solids.

USDA source-reference only

A calculator is unavailable because this cited composition input does not establish nutrition values for the named food.

Editorial illustration of Fish, canned.

USDA source-reference figures for Canned fish

USDA source-reference only. These cited composition-input figures cannot establish nutrient values or keto fit for Canned fish.

USDA source-reference nutrient	Listed source reference: 1 cup (135 g)	USDA source reference per 100 g
Energy	211 kcal	156 kcal
Protein	31.3 g	23.2 g
Total fat	8.5 g	6.3 g
Saturated fat	2.5 g	1.9 g
Total carbohydrate	0 g	0 g
Dietary fiber	0 g	0 g
Calculated net carbs	0 g	0 g
Total sugars	0 g	0 g
Sodium	511.7 mg	379 mg
Potassium	261.9 mg	194 mg

The table keeps the USDA basis separate from the selected portion.

1. Food formCanned fish
2. USDA per-100 g basis0 g calculated net carbs
3. Selected source portionNot established for this specific form
4. Calculation boundarySource-reference figures do not establish the food's nutrition

Explore this food category

Browse other entries in seafood. Because the figures above do not establish this food's nutrition, choose a more specific food source before making a direct comparison.

For meal-level context, use the high-protein keto food guide.

How the cited USDA source-reference calculation works

Calculated net carbs = total carbohydrate − dietary fiber. For the cited USDA composition input, that is 0 g − 0 g = 0 g per 100 g. It is a source-reference calculation, not a nutrient value for Canned fish.

A calculator is unavailable because the cited composition input does not establish values for Canned fish.

Food record and source

• USDA food description: Fish, canned
• FoodData Central ID: FDC ID 2706229
• Dataset: Survey (FNDDS) FNDDS 2021-2023 (2024-10-31)
• Record publication date: 10/31/2024
• Listed source reference: 1 cup (135 g)

The figures are reported by the USDA for the cited composition input. They are shown only to document that source reference and do not establish nutrition values for Canned fish.

1. USDA FoodData Central, Survey (FNDDS) FNDDS 2021-2023 (2024-10-31), FDC ID 2706229. https://fdc.nal.usda.gov/food-search/?query=2706229, https://fdc.nal.usda.gov/fdc-datasets/FoodData_Central_survey_food_json_2024-10-31.zip

Compare related foods

• Raw fish — Compare another form of fish.
• Smoked fish — Compare another form of fish.
• Pickled fish — Compare another form of fish.

Browse all Food Database entries or start with the keto food list for practical meal-planning context.

Frequently Asked Questions

Can canned fish fit a keto diet?

A more specific food source is needed to answer whether canned fish fits a keto diet. The cited USDA composition input has 0 g calculated net carbs for 1 cup (135 g).

What do these USDA source-reference figures mean?

They are figures from the cited USDA composition input. They cannot establish nutrient values or keto fit for Canned fish.

Where do these source-reference figures come from?

The values come from USDA FoodData Central's Survey (FNDDS) FNDDS 2021-2023 (2024-10-31) release, FDC ID 2706229. The page preserves the cited source description and portion weight so the limitation is traceable.

Article history

1. September 11, 2026Updated after final factual and editorial review
2. August 24, 2026First published