Boone ranks all 236 Costa UK items by protein per portion as served, against the 50g adult reference intake, and shows protein per 100 kcal so you can compare how much protein each item delivers for its calories.
The Nacho Chilli Cheese & Chicken Toastie leads at 32g, 64% of the adult reference intake.
All 83 Costa UK items in this section, ranked by protein from highest to lowest. The Nacho Chilli Cheese & Chicken Toastie is highest at 32g and the Apple Slices is lowest at 0.2g.
All 46 Costa UK items in this section, ranked by protein from highest to lowest. The High Protein Iced Latte (Medium) is highest at 23g and the Jasmine and Hibiscus Iced Tea (Medium) is lowest at 0g.
All 19 Costa UK items in this section, ranked by protein from highest to lowest. The High Protein Latte (Medium) is highest at 23g and the Cappuccino (Small) is lowest at 7.4g.
All 30 Costa UK items in this section, ranked by protein from highest to lowest. The White Hot Chocolate (Large) is highest at 15g and the English Breakfast Tea is lowest at 0g.
All 22 Costa UK items in this section, ranked by protein from highest to lowest. The Iced Matcha Latte (Large) is highest at 11g and the Iced Oat Velvetino (Small) is lowest at 3.2g.
All 20 Costa UK items in this section, ranked by protein from highest to lowest. The Chocolate Fudge Frappé with Coffee (Medium) is highest at 8.9g and the Sweet Ube Frappe (Small) is lowest at 5g.
All 16 Costa UK items in this section, ranked by protein from highest to lowest. The Flat White is highest at 8.8g and the Ristretto (Single) is lowest at 0g.
Figures are per portion as served, from the Costa UK Allergen and Nutrition Guide (Autumn 2026, valid 27 August to 21 October 2026).
Every drink is listed with semi-skimmed milk, the default Costa serves unless you ask otherwise. Oat, soya and coconut versions of each drink have their own pages and can be compared in the calculator on any item page. Each size is listed separately, because size changes the figures more than flavour does.