Yes — diet coke 500ml is ultra-processed.
Diet Coke is ultra-processed because it contains several industrial additives and formulations. These include caramel color/caramel colour E150d (a manufactured colouring), artificial sweeteners such as aspartame and acesulfame K, phosphoric acid as an acidulant, potassium benzoate as a preservative, and natural flavors/flavourings, which are industrially produced flavoring compounds. These ingredients place the product in the ultra-processed category according to the NOVA system.
Other drinks Nomi has checked — these ones aren't ultra-processed.
Smooth Coffee Beans
Kenco
Not UPF
Fruity Black Currants
Rocks
Not UPF
belvoir farm elderflower cordial
Belvoir
Not UPF
Juicy Oranges Whole Fruit Squash
Rocks
Not UPF
Coconut Water The Original
Vita Coco
Not UPF
Instant Coffee Gold
Bellarom, Lidl, Lidl Bellarom
Not UPF
GOLD BLEND Instant Coffee
Nescafé
Not UPF
Decaff Americano
Nescafé Azera
Not UPF
Raw Greens Virgin Smoothie
Mockingbird
Not UPF
Azera americano
Nescafé
Not UPF
Yes — diet coke 500ml by Coca-Cola, Diet Coke, The Coca-Cola Company, Tiffin Sandwiches is ultra-processed, so it counts as a UPF (ultra-processed food). Diet Coke is ultra-processed because it contains several industrial additives and formulations. These include caramel color/caramel colour E150d (a manufactured colouring), artificial sweeteners such as aspartame and acesulfame K, phosphoric acid as an acidulant, potassium benzoate as a preservative, and natural flavors/flavourings, which are industrially produced flavoring compounds. These ingredients place the product in the ultra-processed category according to the NOVA system.
Nomi flags 9 ingredients in diet coke 500ml as ultra-processed markers: caramel color, aspartame, phosphoric acid, potassium benzoate, natural flavors, caramel colour e150d, aspartame, acesulfame potassium, flavourings. See the full ingredient breakdown above for what each one is.
Ultra-processed foods (UPFs) are industrial formulations made with ingredients and additives you wouldn't find in a home kitchen — such as emulsifiers, artificial flavourings, colourings and modified starches. The classification is based on the NOVA system used by researchers and dietitians worldwide.
Scan any barcode — or photograph the ingredients label — with the free Nomi app for iOS and Android. You'll get an instant ultra-processed verdict with every ingredient explained in plain English.
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Product information comes from public databases and Nomi's own analysis, and may contain errors. Always check the packaging. Ultra-processed classification is based on the NOVA food processing system.