Boone ranks all 236 Costa UK items by salt per portion as served, against the NHS maximum of 6g a day for adults, 5g for ages 7 to 10 and 3g for ages 4 to 6.
The Philly Cheesesteak Toastie carries the most at 2.9g, 48% of an adult's daily maximum and 97% of a four to six year old's. Savoury food dominates the top of the list; most drinks carry well under half a gram.
All 83 Costa UK items in this section, ranked by salt from highest to lowest. The Philly Cheesesteak Toastie is highest at 2.9g and the Apple Slices is lowest at 0g.
All 20 Costa UK items in this section, ranked by salt from highest to lowest. The Chocolate Fudge Frappé (Medium) is highest at 0.8g and the Coffee Frappé (Small) is lowest at 0.2g.
All 46 Costa UK items in this section, ranked by salt from highest to lowest. The Iced Mocha (Large) is highest at 0.7g and the Jasmine and Hibiscus Iced Tea (Medium) is lowest at 0g.
All 19 Costa UK items in this section, ranked by salt from highest to lowest. The Mocha (Large) is highest at 0.7g and the Cappuccino (Small) is lowest at 0.3g.
All 30 Costa UK items in this section, ranked by salt from highest to lowest. The Maple Hazel Hot Chocolate (Medium) is highest at 0.6g and the English Breakfast Tea is lowest at 0g.
All 22 Costa UK items in this section, ranked by salt from highest to lowest. The Sweet Ube Iced Matcha (Medium) is highest at 0.4g and the Iced Oat Velvetino (Small) is lowest at 0.1g.
All 16 Costa UK items in this section, ranked by salt from highest to lowest. The Flat White is highest at 0.3g 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.