Yes — Premium Oyster Sauce is ultra-processed.
The ingredient list is valid and includes several ultra-processed ingredients and additives. Specifically, modified corn starch and colour (plain caramel) are pre-identified UPF ingredients. In addition, the product contains flavour enhancers (disodium inosinate, disodium guanylate) and yeast extract, which are industrially processed additives used to boost flavour. These ingredients classify the product as ultra-processed according to NOVA.
Other sauces, condiments & spreads Nomi has checked — these ones aren't ultra-processed.
Sun dried dried tomato pesto
Filippo Berio
Not UPF
Extra Virgin Olive Oil Houmous
Waitrose
Not UPF
Smooth Peanut Butter
The Foodie Market
Not UPF
Crunchy Peanut Butter
The Foodie Market
Not UPF
Mango Chutney
Tesco
Not UPF
Taramasalata
Tesco
Not UPF
Taramasalata
Waitrose
Not UPF
Smoked mackerel pate
By sainsbury's
Not UPF
Smoked Salmon Pate
M&S Collection
Not UPF
Smoked Salmon paté
Sainsburys
Not UPF
Yes — Premium Oyster Sauce by Lee Kum Kee is ultra-processed, so it counts as a UPF (ultra-processed food). The ingredient list is valid and includes several ultra-processed ingredients and additives. Specifically, modified corn starch and colour (plain caramel) are pre-identified UPF ingredients. In addition, the product contains flavour enhancers (disodium inosinate, disodium guanylate) and yeast extract, which are industrially processed additives used to boost flavour. These ingredients classify the product as ultra-processed according to NOVA.
Nomi flags 2 ingredients in Premium Oyster Sauce as ultra-processed markers: modified corn starch, plain caramel color. 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.
This page was shared from Nomi, the free app that tells you instantly whether any food is ultra-processed.
Free download · No subscription needed to start scanning


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.