Starbucks is expanding its ready-to-drink (RTD) portfolio with the launch of Starbucks Coffee & Protein, a new line combining Starbucks coffee with added nutrition.

Each 12oz bottle contains 22g of complete protein, 5g of prebiotic fibre, five vitamins and minerals and 2g of sugar.

The products, which will launch nationwide in the US on 23 March, will be available in two flavours: Classic Caffè and Caffè Mocha, with a suggested retail price of $3.99. Distribution will include grocery, online, convenience and gas station channels.

The range was developed through the North American Coffee Partnership (NACP), the joint venture between Starbucks and PepsiCo.

Brian Smith, senior director of brand marketing at NACP, said: “Consumers are looking for wellness solutions that fit seamlessly into their morning routines. Starbucks Coffee & Protein delivers both great taste and nutrients, offering 22g of complete protein and 5g of prebiotic fiber in a convenient, ready-to-drink bottle that supports busy lifestyles.”

The launch follows the introduction of Protein Lattes and Protein Cold Foams in Starbucks coffeehouses across the US and Canada last year.

Alongside the Coffee & Protein range, Starbucks will introduce additional RTD products on 23 March. These include Starbucks Doubleshot Energy Zero Sugar, available in French Vanilla and Dark Chocolate flavours, containing under 100 calories per 15oz can and priced at $3.59.

The company is also adding Chocolate Hazelnut Gelato to its RTD Frappuccino Lite line. The 9.5oz product contains 100 calories and no added sugars and will retail at a suggested price of $2.99. Existing Frappuccino Lite flavours include Sea Salt Caramel Gelato, Creamy Vanilla Gelato and Double Chocolate Gelato.