Starbucks Strawberry Acai Refresher contains 70 kcal in a Tall (12oz), 90 kcal in a Grande (16oz) and 120 kcal in a Venti (24oz) — 4%, 5% and 6% of the adult 2,000 kcal daily reference intake respectively. It is one of the lowest calorie drinks in the Starbucks range — significantly below all espresso drinks, Frappuccinos and milk-based lattes. The calorie count comes entirely from the strawberry acai base which contains sugar and fruit juice — there is no milk, cream or coffee adding calories.

Tall (12oz): 70 kcal, 0g fat (0g saturated), 18g carbohydrate (16g sugar), 0g protein, 0.08g salt. Grande (16oz): 90 kcal, 0g fat (0g saturated), 23g carbohydrate (19g sugar), 0g protein, 0.10g salt. Venti (24oz): 120 kcal, 0g fat (0g saturated), 31g carbohydrate (26g sugar), 0g protein, 0.13g salt. The drink contains no fat and no protein — it is essentially a flavoured, sweetened fruit water. The carbohydrate is entirely sugar from the fruit juice base and added sugar in the refresher concentrate.

Starbucks Strawberry Acai Refresher contains 16g of sugar in a Tall, 19g in a Grande and 26g in a Venti — 53%, 63% and 87% of the adult daily free sugar limit of 30g respectively. A Tall uses just over half the adult daily free sugar limit. The Venti at 26g uses 87% — leaving only 4g headroom for the rest of the day. The sugar comes from the strawberry acai refresher base which contains white grape juice concentrate and sugar, and the freeze-dried strawberry pieces which contribute natural fruit sugar. Despite appearing to be a fruit-based drink, the sugar is primarily from added sources rather than whole fruit. 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 Strawberry Acai Refresher contains approximately 35mg of caffeine in a Tall, 45mg in a Grande and 55mg in a Venti. The caffeine comes from green coffee extract used in the Refresher base — not from espresso or tea. Green coffee extract provides caffeine without the roasted coffee flavour, giving Refreshers their distinctive light, bright taste profile alongside the fruit flavours. The caffeine level is lower than any espresso drink at Starbucks — roughly equivalent to a cup of standard green tea. The NHS advises a maximum of 200mg of caffeine per day during pregnancy — a Venti at 55mg remains well within this limit.

Starbucks Strawberry Acai Refresher contains 0g of saturated fat at every size. There is no dairy, cream or fat-containing ingredient in the standard recipe — the drink is made with the strawberry acai refresher base, water, ice and freeze-dried strawberry pieces. This makes it the only drinks category at Starbucks with zero saturated fat across all sizes. For those monitoring saturated fat intake, the Refresher range offers the only zero-saturated fat drink options alongside plain black coffee, Americano and herbal teas.

Starbucks Strawberry Acai Refresher contains 0g of protein at every size. The drink contains no milk, no egg and no other protein-contributing ingredient. It is a sugar-based flavoured water and ice drink. For those seeking protein from a Starbucks drink, the Iced Vanilla Protein Matcha Latte or Iced Caramel Protein Latte at 20g protein per Tall are the appropriate alternatives — though both are considerably higher in calories.

Yes. NOVA 4, ultra-processed. The strawberry acai refresher base contains white grape juice concentrate, natural flavours, citric acid, erythritol as a sweetener, green coffee extract and acai powder. These are industrially extracted and combined ingredients — the acai and strawberry flavours are not from whole fruit in meaningful quantities. The green coffee extract is an industrial caffeine source. Despite the fresh-tasting fruit profile, the base is a formulated beverage concentrate placing the drink firmly in NOVA 4.

Starbucks Strawberry Acai Refresher contains soya as a declared allergen — the only declared allergen in this drink. The soya comes from soya lecithin used as an emulsifier in the refresher base concentrate. It does not contain milk, wheat/gluten, egg, peanuts, tree nuts, fish, shellfish, celery, mustard, sesame, lupin or molluscs. The absence of dairy makes it dairy-free in its standard format. Always tell your barista if you have a severe allergy before ordering.

Yes. Starbucks Strawberry Acai Refresher is suitable for both vegetarians and vegans in its standard format. It contains no animal-derived ingredients. It is one of the very few vegan drink options at Starbucks that requires no milk substitution — the standard recipe uses no dairy. Only soya is declared as an allergen. For vegans managing a soya allergy, it would be unsuitable due to the soya lecithin in the base concentrate.

The caffeine content — approximately 35mg in a Tall from green coffee extract — is the primary concern for children. The NHS advises children avoid caffeine where possible. A Tall also contains 16g of sugar — 84% of the daily free sugar limit for a child aged 4 to 6 — using the majority of their daily allowance from a single drink. The bright pink colour and fruit flavour make Refreshers particularly appealing to children, but the caffeine content from green coffee extract and the high sugar make them unsuitable as a regular choice for younger children.

Both Refreshers are made on the same base structure — a fruit juice concentrate with green coffee extract, water and ice. The Strawberry Acai Grande contains 90 kcal and 19g sugar. The Mango Passionfruit Grande contains 100 kcal and 22g sugar — marginally higher in both calories and sugar due to the mango base being slightly higher in natural fruit sugar. Both contain approximately the same caffeine from green coffee extract, both are vegan and both declare only soya as an allergen. For lower sugar, the Strawberry Acai is marginally the better choice. For the tropical mango flavour, the Mango Passionfruit is the preference.

A Tall Strawberry Acai Refresher at 16g sugar uses 53% of the adult daily free sugar limit — leaving 14g for food. This is compatible with a Butter Croissant at 5.4g (total 21.4g), a Cheese Twist at 2.9g (total 18.9g) or a Kettle Lightly Salted Crisps at 0.1g (total 16.1g) — all keeping the combined total within the adult daily limit. A Grande at 19g leaves only 11g for food — limiting viable pairings to low-sugar savoury items. A Venti at 26g leaves only 4g — effectively ruling out any sweet food item alongside it.

Starbucks Strawberry Acai Refresher is one of the lowest calorie drinks at Starbucks at 70-120 kcal across sizes, with zero fat and zero protein. It is vegan and dairy-free in its standard format with only soya as a declared allergen. The sugar at 16-26g across sizes is meaningful — a Grande uses 63% of the adult daily free sugar limit — but substantially lower than any Frappuccino, Chai Latte or flavoured espresso drink. It contains low-level caffeine from green coffee extract. For adults and older children seeking a lower calorie, dairy-free, vegan iced drink at Starbucks with a light fruit flavour, the Strawberry Acai Refresher is one of the most appropriate options in the range — the sugar content and caffeine are the key considerations.