First-party app output
DietVox scan example
Tuna scan
GREEN
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Scan recording
Direct answer: For the plain prepared Tuna serving described here, the DietVox Low Sugar result for Tuna is GREEN. The exact label, serving and added ingredients remain relevant. The broader interpretation comes from NHS guidance on reducing sugar.
How this food was assessed
Product and recipe details define the scope. Cuts, brands, cooking methods, breading, marinades, sauces and accompaniments change the finished food. Count oils, breading, sauces and side dishes.
Product and preparation notes
- Tuna appears in DietVox as a protein item, with the subtype “Fish”.
- For disambiguation, the catalogue uses Thunnus.
- Fresh tuna steak and canned tuna are distinct reference foods, while cans may be packed in water, brine or oil.
- For canned tuna, check whether the record describes drained solids or the contents including packing liquid.
- Mayonnaise, bread, cheese and vegetables in tuna salad or a sandwich must be counted as recipe ingredients.
- USDA FoodData Central provides the imported food-composition record under FDC ID 172006; branded and prepared forms may use another entry.
DietVox rating snapshot
The complete DietVox rating set is GREEN for Acid Reflux, GREEN for Low Sugar, GREEN for Weight Loss and GREEN for Balanced Eating; preparation context still applies. These are DietVox comparison labels, not physiological claims. Protocol context: NHS guidance on reducing sugar.
Foods to compare
Use the following alternatives to continue the same food-selection task:
- Salmon — preparation and protocol details
- Shrimp — preparation and protocol details
- Tofu — preparation and protocol details
- Hummus — preparation and protocol details
Source scope and editorial status
Editorial sources: NHS guidance on reducing sugar plus USDA FoodData Central, checked 28 July 2026. DietVox Editorial is the organization author; medical review has not taken place.
Nutrition data provenance: The closest preparation-specific match is USDA FoodData Central FDC ID 172006, Fish, tuna, yellowfin, fresh, cooked, dry heat; some DietVox fields are rounded or differ. Checked 28 July 2026.
How It Works
The analysis of Tuna is protocol-based: Low Sugar. It avoids a food-specific causal explanation and points to NHS guidance on reducing sugar for general guidance.
Scan any food. Get an instant RED/AMBER/GREEN rating.
DietVox analyses foods across 4 diet protocols, with preparation and portion context.
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Other foods to compare under this protocol.
Frequently Asked Questions
Is canned tuna in oil okay for a low-sugar diet?
Compare the nutrition labels for the exact tins you are choosing. Tuna packed in oil and tuna packed in water can have different energy and fat values, while sauces and flavoured products may add other ingredients. Select the product that fits your overall meal plan.
Does tuna affect blood sugar or insulin levels?
A plain tuna label can be useful when you are tracking carbohydrate and sugar in a meal. This page does not predict blood-glucose or insulin responses, assign a glycaemic index, or establish tuna as a treatment for diabetes; seek personalised advice if you manage diabetes.
What are some healthy, low-sugar ways to make tuna salad?
Build the salad around the ingredients you enjoy, then check each packaged ingredient's label for sugars and serving information. Plain yoghurt, avocado, oil, vegetables and herbs are possible additions, but recipes and products differ, so no one combination is required.
How much tuna can I safely eat on a low-sugar diet?
Low-sugar goals do not replace food-safety guidance. Tuna advice varies by species, amount and whether someone is pregnant or planning pregnancy, so follow the current official fish-consumption guidance for your country and ask a clinician if your circumstances need individual advice.
