Starbucks Signature Tuna Melt Panini contains 453 kcal per panini — 23% of the adult 2,000 kcal daily reference intake, 29% for a child aged 7 to 10, and 35% for a child aged 4 to 6. As a hot food item it represents a substantial portion of the daily calorie allowance, comparable to a light main meal.

Per panini: 453 kcal, 18g fat (7.5g saturated), 47g carbohydrate (3.8g sugar), 27g protein, 1.8g salt. The saturated fat at 7.5g is 38% of the adult daily guideline of 20g. The sugar at 3.8g is 13% of the adult daily free sugar limit of 30g. The salt at 1.8g is 30% of the adult daily limit of 6g.

Starbucks Signature Tuna Melt Panini contains 3.8g of sugar per panini — 1 teaspoon and 13% of the adult daily free sugar limit of 30g. For a child aged 4 to 6, this uses 20% of their daily free sugar limit. The sugar is low for a hot food item and comes from the bread and any condiments in the filling rather than added sweeteners. The NHS free sugar limit is 30g per day for adults, 24g for children aged 7 to 10, and 19g for children aged 4 to 6.

Starbucks Signature Tuna Melt Panini contains 1.8g of salt per panini — 30% of the adult daily limit of 6g and 60% of the daily limit for a child aged 4 to 6. The salt comes from the tuna, cheese, mayonnaise and bread combined. At 1.8g it is one of the higher salt food items at Starbucks and is a meaningful consideration for younger children.

Starbucks Signature Tuna Melt Panini contains 7.5g of saturated fat per panini — 38% of the adult daily guideline of 20g and 47% for a child aged 4 to 6. The saturated fat comes primarily from the melted cheese and mayonnaise in the filling. Tuna itself is low in saturated fat, so the cheese content is the primary driver.

Starbucks Signature Tuna Melt Panini contains 27g of protein per panini — 54% of the adult daily reference intake of 50g. This is the highest protein of any food item in the Starbucks savoury range, driven by the tuna filling which is one of the most protein-dense ingredients available. For those prioritising protein at a coffee shop stop, the Tuna Melt Panini is the standout option.

Yes. Starbucks Signature Tuna Melt Panini is classified as NOVA 4, ultra-processed. The panini bread contains emulsifiers and preservatives including calcium propionate. The mayonnaise contains modified starch and stabilisers. The cheese filling may contain emulsifying salts. These industrial additives are present across multiple components despite the tuna filling itself being minimally processed.

Starbucks Signature Tuna Melt Panini contains wheat/gluten, milk, egg, fish and mustard as declared allergens — five allergens, one of the most complex profiles in the Starbucks food range. The fish allergen is from the tuna filling. The egg comes from the mayonnaise. The mustard comes from the mayonnaise or condiment used in the recipe. The milk is from the melted cheese. It does not contain soya, peanuts, tree nuts, shellfish, celery, sesame, lupin, molluscs or sulphites. Always tell your barista if you have a severe allergy before ordering.

No. Starbucks Signature Tuna Melt Panini contains tuna — a fish — and is not suitable for vegetarians or vegans. For a vegetarian hot panini option, the Signature Tomato Mozzarella Panini or the Signature Grilled Cheese Toastie are the appropriate alternatives.

On sugar, Starbucks Signature Tuna Melt Panini is a relatively low-sugar food item at 3.8g. However the salt at 1.8g uses 60% of the daily limit for a child aged 4 to 6, and the five declared allergens — including fish, egg and mustard — narrow its suitability significantly. It is not suitable for children with fish allergies, egg allergies or mustard allergies. The high protein at 27g makes it a nutritionally dense option for older children and teenagers who can eat all five allergens.

Yes. At 27g of protein per panini — 54% of the adult daily reference intake — the Starbucks Signature Tuna Melt Panini is the highest protein food item in the Starbucks range. Tuna is one of the most protein-dense whole foods available, providing lean protein with relatively low saturated fat compared to cheese or meat-based alternatives. For anyone prioritising protein at a coffee shop stop, this is the standout option in the Starbucks food range.

Starbucks Signature Tuna Melt Panini contains just 3.8g of sugar — leaving significant room for a drink without exceeding the adult daily free sugar limit of 30g. A plain Cappuccino or flat white adds only the natural sugars from milk at around 9-12g. A sweetened drink such as a Caramel Macchiato adds 23g, which combined with the panini brings the total to 26.8g — still within the adult limit but using 89% of it. A Grande Caramel Frappuccino at 48g would take the total to 51.8g, well over the daily limit.

The Starbucks Signature Tuna Melt Panini leads the hot food range on protein at 27g — ahead of the Chicken Caesar Wrap at 18g, the Smoked Ham and Cheddar Sandwich at 22g and the Signature Breakfast Sandwich at 16g. On calories at 453 kcal it is higher than most sandwiches. On sugar at 3.8g it is among the lowest of any hot food item. The five allergens make it less widely suitable than simpler options such as the Signature Grilled Cheese Toastie at two allergens.

The salt in the Starbucks Signature Tuna Melt Panini comes from the ingredients and cannot be reduced by customisation. At 1.8g, it uses 30% of the adult daily salt limit. To manage overall daily salt intake, pair it with drinks and other items that are low in salt — an Americano, flat white or herbal tea contribute no salt. Avoiding adding condiments at the counter also keeps the total salt contribution from the meal as low as possible.

Starbucks Signature Tuna Melt Panini is the highest protein item in the Starbucks food range at 27g and among the lowest in sugar at 3.8g — making it nutritionally one of the more balanced hot food options available. The trade-offs are the 1.8g salt, the 453 kcal total and the five declared allergens including fish, which limits its suitability. It is not suitable for vegetarians, vegans, or anyone managing a fish, egg or mustard allergy. For adults without these allergen concerns who are prioritising protein, it is the standout choice in the Starbucks food range.