Starbucks Free Range Egg Mayo Sandwich contains 404 kcal per sandwich — 20% of the adult 2,000 kcal daily reference intake, 26% for a child aged 7 to 10, and 31% for a child aged 4 to 6. At 404 kcal it sits in the middle of the Starbucks cold sandwich range, above the Smoked Ham and Cheddar Sandwich at 374 kcal.

Per sandwich: 404 kcal, 16g fat (2.6g saturated), 47g carbohydrate (2.6g sugar), 17g protein, 1.1g salt. The saturated fat at 2.6g is 13% of the adult daily guideline of 20g — one of the lowest of any filled sandwich at Starbucks. The sugar at 2.6g is 9% of the adult daily free sugar limit of 30g. The salt at 1.1g is 18% of the adult daily limit of 6g.

Starbucks Free Range Egg Mayo Sandwich contains 2.6g of sugar per sandwich — 0.7 teaspoons and 9% of the adult daily free sugar limit of 30g. For a child aged 4 to 6, this uses 14% of their daily free sugar limit. The sugar comes from the seeded bread rather than the filling — neither the hard boiled eggs nor the mayonnaise contribute meaningful sugar. This is one of the lowest sugar filled sandwiches at Starbucks. 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 Free Range Egg Mayo Sandwich contains 1.1g of salt per sandwich — 18% of the adult daily limit of 6g and 37% of the daily limit for a child aged 4 to 6. This is the lowest salt of any filled sandwich at Starbucks — significantly lower than the Smoked Ham and Cheddar Sandwich at 1.8g and the Chicken Caesar Wrap at 1.5g. The absence of cured or processed meat is the primary reason for the lower salt content.

Starbucks Free Range Egg Mayo Sandwich contains 2.6g of saturated fat per sandwich — 13% of the adult daily guideline of 20g and 16% for a child aged 4 to 6. This is one of the lowest saturated fat figures of any filled sandwich at Starbucks. The mayonnaise uses rapeseed oil as its base fat rather than a saturated fat source, which keeps the saturated fat content low despite the mayo being a significant component of the filling.

Starbucks Free Range Egg Mayo Sandwich contains 17g of protein per sandwich — 34% of the adult daily reference intake of 50g. The protein comes primarily from the free range hard boiled eggs which make up 36% of the filling by weight. Eggs are a complete protein source providing all essential amino acids. At 17g for 404 kcal the protein contribution is moderate for a cold sandwich.

Yes. Starbucks Free Range Egg Mayo Sandwich is classified as NOVA 4, ultra-processed. The seeded farmhouse bread contains calcium propionate as a preservative and DATEM as an emulsifier — industrial additives not used in home baking. The mayonnaise contains cornflour as a thickener. The Dijon mustard in the recipe also contains industrial processing. The free range eggs and salad cress are minimally processed but the bread additives determine the overall NOVA 4 classification.

Starbucks Free Range Egg Mayo Sandwich contains wheat/gluten, egg and mustard as declared allergens. The egg comes from both the hard boiled eggs in the filling and the egg yolk in the mayonnaise. The mustard comes from the Dijon mustard and mustard flour in the mayonnaise recipe. Notably, milk is not a declared allergen despite the mayo — the recipe uses egg yolk rather than dairy as its emulsifier base. It does not contain milk, soya, peanuts, tree nuts, fish, shellfish, celery, sesame, lupin, molluscs or sulphites. Always tell your barista if you have a severe allergy before ordering.

Yes. Starbucks Free Range Egg Mayo Sandwich is suitable for vegetarians. It contains no meat or fish. It is not suitable for vegans as it contains free range eggs and egg yolk in the mayonnaise. It is also not suitable for those with egg or mustard allergies. It is the main vegetarian cold sandwich option at Starbucks alongside the cheese-based options.

On sugar, salt and saturated fat the Free Range Egg Mayo Sandwich is one of the more appropriate cold food options for children at Starbucks. The 1.1g salt uses 37% of the daily limit for a child aged 4 to 6 — the lowest salt of any filled sandwich. The 2.6g sugar and 2.6g saturated fat are both low. The egg and mustard allergens narrow its suitability for children with those allergies. It contains no meat and no nitrites, which simplifies the ingredient profile relative to ham or bacon-based options.

No. Starbucks Free Range Egg Mayo Sandwich contains no meat and therefore no sodium nitrite or other nitrite preservatives. This is a meaningful distinction from the ham and bacon-based sandwiches on the Starbucks menu — the Smoked Ham and Cheddar Sandwich, Signature Smoked Ham and Cheese Toastie, Smoked Bacon Roll and Chicken Caesar Wrap all contain nitrite-cured meat. The Egg Mayo Sandwich is the only cold meat-free sandwich option that avoids nitrites entirely.

At 2.6g of sugar the Egg Mayo Sandwich leaves nearly the full adult daily free sugar allowance of 30g available for a drink. A plain Cappuccino or Flat White adds around 9-12g from milk. A Caramel Macchiato adds 23g, bringing the total to 25.6g — well within the adult daily limit. Even a Grande Chai Tea Latte at 28g would bring the total to 30.6g — just over the limit. A Grande Caramel Frappuccino at 48g would take the total to 50.6g. An unsweetened Americano or herbal tea is the ideal pairing.

Starbucks Free Range Egg Mayo Sandwich leads the cold sandwich range on salt at 1.1g — the lowest of any filled sandwich — and saturated fat at 2.6g. On protein at 17g it is lower than the Smoked Ham and Cheddar Sandwich at 22g. On calories at 404 kcal it is higher than the Ham and Cheddar at 374 kcal. The key advantages are the lowest salt, lowest saturated fat, no nitrites and no milk allergen — making it the most allergen-accessible vegetarian cold sandwich at Starbucks for those managing dairy allergies alongside egg tolerance.

Starbucks Free Range Egg Mayo Sandwich is the lowest salt and lowest saturated fat filled sandwich at Starbucks. It is suitable for vegetarians, contains no nitrites and has no milk allergen despite containing mayonnaise. The three declared allergens — wheat, egg and mustard — make it unsuitable for those managing egg or mustard allergies. For vegetarians and those avoiding cured meat and nitrites, it is the standout cold sandwich choice at Starbucks on salt and saturated fat grounds.