Starbucks Blueberry Muffin contains 381 kcal per muffin — 19% of the adult 2,000 kcal daily reference intake, 25% for a child aged 7 to 10, and 30% for a child aged 4 to 6. It is the lowest calorie of the three muffins at Starbucks — below the Lemon Muffin at 399 kcal and the Chocolate Muffin at 412 kcal. The absence of chocolate chunks or a heavily sweetened topping keeps the calorie count slightly lower than the other two muffin options.

Per muffin: 381 kcal, 14g fat (6.9g saturated), 58g carbohydrate (30g sugar), 5.3g protein, 0.68g salt. The saturated fat at 6.9g is 35% of the adult daily guideline of 20g. The sugar at 30g is 100% of the adult daily free sugar limit of 30g — exactly the daily limit from a single muffin. The salt at 0.68g is 11% of the adult daily limit of 6g.

Starbucks Blueberry Muffin contains 30g of sugar per muffin — 7.5 teaspoons and exactly 100% of the adult daily free sugar limit of 30g. For a child aged 4 to 6, this represents 158% of their daily free sugar limit. For a child aged 7 to 10, it is 125% of their 24g daily limit. Despite being the lowest sugar muffin at Starbucks, the Blueberry Muffin still uses the entire adult daily free sugar allowance in a single item — a meaningful figure even at the lower end of the muffin range. The sugar comes from the caster sugar in the batter, the sugar-coated blueberries used in the filling and the granulated sugar on the domed top. 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 Blueberry Muffin contains 0.68g of salt per muffin — 11% of the adult daily limit of 6g and 23% of the daily limit for a child aged 4 to 6. This is lower than the Lemon Muffin at 0.73g but higher than most sweet bakery items at Starbucks. The salt comes from the raising agents in the batter — sodium bicarbonate contributes sodium as part of the leavening process — alongside any salt used to enhance the flavour of the batter.

Starbucks Blueberry Muffin contains 6.9g of saturated fat per muffin — 35% of the adult daily guideline of 20g and 43% for a child aged 4 to 6. This is the lowest saturated fat of the three muffins — slightly below the Lemon Muffin at 7.2g and the Chocolate Muffin at 7.8g. Like all three muffins, the Blueberry uses an oil-based batter which keeps the saturated fat lower than comparable butter-based items. The blueberries themselves contribute no saturated fat — the 6.9g comes from the oil and egg content of the batter.

Starbucks Blueberry Muffin contains 5.3g of protein per muffin — 11% of the adult daily reference intake of 50g. The protein comes from the eggs and wheat flour in the muffin batter. The blueberries contribute minimal protein. At 5.3g for 381 kcal the protein-to-calorie ratio is low and typical of sweet bakery items where carbohydrate and fat dominate the energy profile.

Yes. NOVA 4, ultra-processed. The muffin batter contains emulsifiers to improve texture and shelf life, modified starch as a moisture retention agent, raising agents including sodium bicarbonate and diphosphates, and blueberry flavouring to enhance the natural flavour of the fruit. The sugar-coated blueberries used in the filling are processed with added sugar. These industrial additives determine the NOVA 4 classification despite the blueberries being a natural ingredient.

Starbucks Blueberry Muffin contains wheat/gluten, milk, egg and soya as declared allergens — four allergens. The wheat comes from the wheat flour in the muffin batter. The milk comes from the milk or buttermilk in the batter recipe. The egg comes from the whole eggs in the batter. The soya comes from soya flour used in the muffin recipe or from emulsifiers containing soya. It does not contain peanuts, tree nuts, fish, shellfish, celery, mustard, sesame, lupin or molluscs. Like the other two muffins it has no tree nut allergen. Always tell your barista if you have a severe allergy before ordering.

Yes. Starbucks Blueberry Muffin is suitable for vegetarians. It contains no meat or fish. It is not suitable for vegans as it contains eggs and milk. It is also not suitable for those with wheat, milk, egg or soya allergies. With no tree nut allergen it is the most broadly accessible of the three muffins for those managing allergen complexity in the Starbucks sweet range.

At 30g of sugar — 158% of the daily free sugar limit for a child aged 4 to 6 — the Blueberry Muffin is not appropriate for younger children despite being the lowest sugar muffin at Starbucks. The 6.9g saturated fat uses 43% of their daily guideline. The 0.68g salt uses 23% of their daily limit. Four allergens are declared. While it is the most nutritionally moderate of the three muffins, the sugar content alone makes it unsuitable as a children's snack or treat. For children, the Classic Porridge, Egg White Bites or Kettle Lightly Salted Crisps are far more appropriate choices.

Starbucks Blueberry Muffin leads the muffin range on all nutritional measures: lowest calories at 381 kcal versus 399 kcal (Lemon) and 412 kcal (Chocolate); lowest sugar at 30g versus 34g (Lemon) and 38g (Chocolate); lowest saturated fat at 6.9g versus 7.2g (Lemon) and 7.8g (Chocolate). Salt is lower than the Lemon Muffin at 0.68g versus 0.73g but slightly higher than the Chocolate Muffin at 0.62g. If choosing between the three muffins on nutritional grounds, the Blueberry Muffin is the best option across every key measure.

At 30g of sugar the Blueberry Muffin uses exactly the adult daily free sugar limit before any drink is added. A plain Cappuccino or Flat White adds 9-12g from milk, taking the total to 39-42g — already over the adult daily limit. A Caramel Macchiato adds 23g bringing the total to 53g. A Grande Caramel Frappuccino at 48g takes the total to 78g. Only an unsweetened Americano, filter coffee or herbal tea at zero sugar is the compatible pairing. Even a plain milk-based coffee pushes the daily total over the adult limit when combined with the Blueberry Muffin.

Fresh or frozen blueberries are a source of antioxidants, particularly anthocyanins, alongside vitamin C and dietary fibre. However, the blueberries used in commercial muffin production are typically sugar-coated to prevent them sinking to the bottom during baking — a process that adds sugar to the fruit. The quantity of blueberries relative to the total muffin weight is also modest, meaning the nutritional contribution from the fruit is small relative to the sugar, fat and refined flour in the batter. The blueberry flavouring used to intensify the fruit flavour is an industrial additive rather than additional fruit. The antioxidant benefit is real but marginal in the context of the overall nutritional profile.

Starbucks Blueberry Muffin is the best of the three muffin options on every nutritional measure — lowest calories at 381 kcal, lowest sugar at 30g and lowest saturated fat at 6.9g. Despite this, the 30g sugar still meets the entire adult daily free sugar limit in a single item. It has four declared allergens with no tree nuts, making it the most accessible muffin on allergen grounds. It is suitable for vegetarians but not vegans. Within the Starbucks sweet bakery range it is one of the more moderate items — though still significantly higher in sugar and lower in nutritional value than the savoury options, Classic Porridge or Berry Crunch. For those who want a muffin at Starbucks, the Blueberry is the most nutritionally reasonable choice.