"Is this HFSS?" It's a question I get asked constantly — by shoppers standing in the biscuit aisle wondering why their favourite treat has moved, and by food business owners emailing me a spreadsheet of products asking which ones are affected. The short answer is that HFSS isn't a vague label — it's a precise, scoreable classification. I've covered the full regulatory picture in my guide to UK HFSS food regulations; here I want to focus on what the classification actually means day-to-day, and how it differs from other labels you might have heard.
HFSS in Brief
HFSS stands for "High in Fat, Salt or Sugar". In the UK, whether a food or drink counts as HFSS is decided using the Nutrient Profiling Model (NPM) — products are scored against energy, saturated fat, sugar, and sodium content, with points subtracted for nutrients like fibre and protein. Foods scoring 4 or more points, or drinks scoring 1 or more, are classified as HFSS. For the full scoring breakdown, thresholds, and the regulations this triggers, see my HFSS regulations guide.
What surprises most people is how many "healthy-sounding" products can also be classified as HFSS — some granola and cereal bars, flavoured yoghurts, and fruit juices or smoothies can score above the threshold once their sugar content is accounted for. Classification depends on the actual nutrient breakdown, not the marketing on the front of the pack.
How to Tell If a Product Is HFSS
You won't usually find "HFSS" printed on packaging — the classification exists for regulatory purposes rather than consumer labelling. To get a sense of where a product sits, the nutrition information panel is your best guide:
- Check the energy, saturated fat, sugar, and salt figures per 100g on the back-of-pack panel.
- Compare against the traffic-light labelling on the front, where red typically flags high levels of a nutrient.
- Remember that several reds together, particularly on sugar and saturated fat, are a strong indicator a product is likely to be HFSS.
Is HFSS the Same as "Ultra-Processed"?
No, and this is one of the most common mix-ups I come across. "Ultra-processed food" (UPF) refers to the NOVA classification system, which groups foods by how industrially processed they are and what kinds of ingredients and additives they contain — it isn't primarily about the nutrient levels themselves. HFSS is a nutrient-based score, not a processing-based one. In practice there's a lot of overlap, since many ultra-processed products are also high in fat, salt, or sugar, but the two aren't interchangeable. A product can be classified as HFSS without being ultra-processed — a strong cheddar or a bag of nuts roasted in oil, for instance, can score as high in fat or salt without going anywhere near a factory line full of additives. Equally, some ultra-processed foods, such as diet soft drinks, aren't HFSS at all. If you're trying to eat well, both classifications are useful, but they're answering different questions.
What HFSS Means in Practice
Since October 2022, HFSS products in larger stores in England can no longer be displayed at checkouts, store entrances, or aisle ends, with volume promotions and a UK-wide advertising watershed following in October 2025 and January 2026 respectively. This is why the shop floor — and now the ad breaks — feel different from a few years ago; the products haven't disappeared, but where, how, and when they're pushed at you has changed. I've set out the full timeline, business thresholds, and exemptions in my UK HFSS food regulations guide.
For food businesses, HFSS status shapes far more than store placement — it affects how a product can be advertised, which promotional mechanics can be used, and increasingly, whether reformulation is worth considering. As the former National Sustainability Manager (CSR), Health & Nutrition UK/IE at Aldi, I led exactly this kind of HFSS legislation compliance across Great Britain and Ireland, so I see both sides of this — the consumer trying to make sense of the shop floor, and the business trying to get the classification right.
If You Run a Food Business
If you're a manufacturer, retailer, or foodservice business unsure where your range sits, it's worth getting a proper assessment rather than guessing from the nutrition panel alone — thresholds vary by category and the detail matters. I offer an HFSS compliance and reformulation consultancy covering exactly this.
If you'd like personalised support making sense of HFSS in your own diet, I offer one-to-one consultations. View my consultation packages or book a free discovery call to discuss how I can help.