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Duchess Chunk Light Tuna in Water
Photo: Open Food Facts contributors (CC BY-SA)

Tuna chunks

Duchess Chunk Light Tuna in Water

5 oz

Excellent out of 100 Medium confidence
  • Ultra-processed
  • No additives
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Why it scores 84

Duchess Chunk Light Tuna in Water scores 84 out of 100 (Excellent) under GoodSwap’s published rules. What moved the score most:

  1. Ultra-processed (NOVA 4): Classified NOVA 4: made with industrial ingredients and additives. Strong
  2. Protein 23.2 g / 100 g: A good source of protein. Info
  3. Salt 0.9 g / 100 g: High in salt. Strong

Every line of the math is on The Receipt below, with its evidence tier and sources.

Better canned tuna

The same kind of product, at least 10 points higher, sold in the US. Never paid placements.

The Receipt

Chunk Light Tuna in Water

START100

Ingredients

  • Soy protein isolate / concentrate
    Info An ingredient typical of ultra-processed foods (NOVA group 4). [1]
subtotal−2.5

Processing

  • Ultra-processed (NOVA 4)
    Strong Classified NOVA 4: made with industrial ingredients and additives. [1]
subtotal−18

Nutrition per 100 g

  • Salt 0.9 g / 100 g
    Strong High in salt. [2]
  • Protein 23.2 g / 100 g
    Info A good source of protein. [3]
subtotal+1

Bonuses

  • No additives
    Info No food additives in the ingredient list. [1]
subtotal+3
TOTAL 84Excellent

100 − 16.5 = 83.5 → 84

GTIN 00832460000883 · 2026-06-10

score v1.3.0 · kb 2026.10.11

Medium confidence

Same product, same score. Every time.

Nutrition per 100 g

Energy107 kcal
Fat0 g
Carbohydrates0.5 g
Sugars0 g
Added sugars0 g
Fiber0 g
Protein23.2 g
Salt0.9 g

Serving: 1 Serving (56 g)

Ingredients

High Moderate Not recognized Tap an ingredient for its evidence and rules.
Label text, as published

light tuna, water, soy protein, soy fiber, salt

Allergens and diets

Contains: Soy, Fish

  • Not vegan
  • Not vegetarian
  • Gluten-free
  • Palm-oil-free

Always check the package: recipes change.

Healthiest tuna chunks in the US

Sources

  1. Ultra-processed foods: what they are and how to identify them

    Public Health Nutrition · April 2019 · Peer-reviewed

    doi.org

  2. Sodium reduction (fact sheet)

    World Health Organization · May 11, 2026 · Agency assessment

    “For adults, WHO recommends less than 2000 mg/day of sodium (equivalent to less than 5 g/day salt), or just under a teaspoon.”

    who.int

  3. Dietary Guidelines for Americans, 2025–2030

    U.S. Department of Health and Human Services and U.S. Department of Agriculture · January 2026 · Regulator

    “Limit foods and beverages that include artificial flavors, petroleum-based dyes, artificial preservatives, and low-calorie non-nutritive sweeteners.”

    cdn.realfood.gov

  4. Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses

    BMJ · Feb 28, 2024 · Peer-reviewed

    “Greater exposure to ultra-processed food was associated with a higher risk of adverse health outcomes, especially cardiometabolic, common mental disorder, and mortality outcomes.”

    doi.org

  5. Ultra-Processed Diets Cause Excess Calorie Intake and Weight Gain: An Inpatient Randomized Controlled Trial of Ad Libitum Food Intake

    Cell Metabolism · July 2019 · Peer-reviewed

    doi.org