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What are ultra-processed foods? The NOVA definition, the evidence and how to spot them on a label.

Updated

The NOVA definition of ultra-processed food, which label ingredients mark it, what a 2024 BMJ umbrella review and a 2019 NIH trial found, the limits of that evidence, and catalog products that list NOVA marker ingredients.

Quick answer

Ultra-processed foods are group 4 of the NOVA classification: formulations made mostly of ingredients for industrial use, such as high-fructose corn syrup, hydrogenated oils, protein isolates, and cosmetic additives (flavours, colours, emulsifiers, sweeteners, thickeners). A practical test is a single marker ingredient on the label. A 2024 BMJ umbrella review linked higher intake to many adverse outcomes, but mostly in observational studies rated low or very low quality. A 2019 NIH trial found people ate about 508 more calories a day on an ultra-processed diet.

System
NOVA, group 4
Label test
One marker ingredient
2024 BMJ review
45 analyses, about 9.9 million people
Evidence quality
Mostly low or very low (GRADE)

Your avoid list

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01 · A closer look

The NOVA definition.

NOVA sorts foods by the extent and purpose of industrial processing into four groups: unprocessed or minimally processed foods; processed culinary ingredients such as oils, sugar and salt; processed foods made by adding those to whole foods, such as canned vegetables or simple bread; and ultra-processed foods, which its authors define as formulations of ingredients, mostly of exclusive industrial use. A loaf made of flour, water, salt and yeast is processed; the same loaf with emulsifiers or colours is ultra-processed.

Monteiro et al., Ultra-processed foods: what they are and how to identify them, Public Health Nutrition (2019)

02 · A closer look

Which label ingredients mark ultra-processing.

The NOVA authors name two kinds of markers: substances rarely or never used in home kitchens, such as fructose, high-fructose corn syrup, maltodextrin, dextrose, invert sugar, hydrolysed proteins, soya protein isolate, and hydrogenated or interesterified oils; and cosmetic additives, such as flavours, flavour enhancers, colours, emulsifiers, sweeteners, thickeners, and gelling, foaming or glazing agents. Their practical rule is to check whether the ingredient list contains at least one of them. This site flags several of these groups (dyes, sweeteners, corn syrups, hydrogenated oils, carrageenan and MSG), but it does not assign NOVA groups, and “natural flavors” are not flagged.

Monteiro et al., Ultra-processed foods: what they are and how to identify them, Public Health Nutrition (2019)

03 · A closer look

What the evidence shows.

A 2024 BMJ umbrella review pooled 45 meta-analyses covering about 9.9 million participants. Higher ultra-processed food intake was directly associated with 32 of the health parameters studied, spanning mortality, cancer and cardiometabolic, mental, respiratory and gastrointestinal outcomes, with the strongest ratings for cardiovascular disease mortality, type 2 diabetes and common mental disorders. The authors rated the underlying quality moderate for 4 analyses, low for 22 and very low for 19, and name residual confounding and differing intake measurement as limits. The WHO fact sheet says highly processed foods are associated with negative health outcomes and are often high in sodium, sugar or unhealthy fats.

Lane et al., Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses, BMJ (2024)

04 · A closer look

What the one controlled trial showed.

In a 2019 NIH inpatient crossover trial, 20 adults spent 14 days on an ultra-processed diet and 14 days on an unprocessed diet, in random order, eating as much as they wanted. They ate 508 kcal a day more on the ultra-processed diet, gained about 0.9 kg on it and lost about 0.9 kg on the unprocessed diet. The authors list limits: only 28 days, an inpatient setting, diets that differed in added sugar, fiber and other features despite matching, and no test of why people ate more.

Hall et al., Ultra-processed diets cause excess calorie intake and weight gain: an inpatient randomized controlled trial, Cell Metabolism (2019)

05 · A closer look

Not every ultra-processed food is the same.

The BMJ authors note that some NOVA subcategories, such as dark or wholegrain bread and yoghurt, were inversely associated with type 2 diabetes, so the category is not uniform. Because NOVA classes by ingredients and processing, a product can be ultra-processed and still be one you choose. This page is a label reference, not a diagnosis of a diet.

Lane et al., Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses, BMJ (2024)

06 · A closer look

Catalog products that list a marker ingredient.

The products below list at least one NOVA marker that this checker detects on their recorded label (a dye, artificial sweetener, corn syrup, hydrogenated oil, carrageenan or MSG), picked across shelves. They are examples, not a NOVA classification. Open any product to read the full ingredient statement and its verification date, or use the comparison tables to find products with shorter lists.

The short answer

Our picks for ultra-processed foods

No pick yetEvery scored ultra-processed foods label lists at least one of the groups we check, so nothing here earns a pick.

Clear noMuscle Milk Whey Protein Powder, Chocolate (lists seed oils, artificial sweeteners and carrageenan), Old Trapper Deli Style Beef Sticks – Original (lists MSG, artificial preservatives and corn syrups), Melinda's Jalapeno Ranch (lists seed oils, carrageenan and artificial preservatives), plus 21 more with a listed group.

Ranked from 24 of 24 products with current labels. Every product is in the table below; a score reflects labels and claims, not nutrition, allergies or safety.

Compare the recorded labels

Find the ingredients that matter to you.

24 of 24 products

“No …” columns: None found on the label · Listed on the label · Unknown. Diet fit: Fits · Doesn’t fit · Unknown (rules; not medical advice). Claims: verified · not established. Default: most check marks first; not a health score.

Compare product claims and recorded ingredients. Click a column heading to sort.
Buy
92 / 1008 of 9 groups clear · organicBuy on Amazon ↗Product details →5
89 / 1008 of 9 groups clear · organic not applicableFind where to buy ↗Product details →3
68 / 1008 of 9 groups clear · no organic claimFind where to buy ↗Product details →4
63 / 1008 of 9 groups clear · no organic claimFind where to buy ↗Product details →3
63 / 1008 of 9 groups clear · no organic claimFind where to buy ↗Product details →4
63 / 1008 of 9 groups clear · no organic claimFind where to buy ↗Product details →3
63 / 1008 of 9 groups clear · no organic claimProduct details →4
63 / 1008 of 9 groups clear · no organic claimFind where to buy ↗Product details →4
63 / 1008 of 9 groups clear · no organic claimProduct details →3
55 / 1007 of 9 groups clear · no organic claimFind where to buy ↗Product details →2
55 / 1007 of 9 groups clear · no organic claimFind where to buy ↗Product details →2
55 / 1007 of 9 groups clear · no organic claimFind where to buy ↗Product details →2
55 / 1007 of 9 groups clear · no organic claimProduct details →3
55 / 1007 of 9 groups clear · no organic claimProduct details →3
55 / 1007 of 9 groups clear · no organic claimProduct details →2
55 / 1007 of 9 groups clear · no organic claimProduct details →3
55 / 1007 of 9 groups clear · no organic claimFind where to buy ↗Product details →3
55 / 1007 of 9 groups clear · no organic claimFind where to buy ↗Product details →3
53 / 1008 of 9 groups clear · no organic claimProduct details →4
53 / 1008 of 9 groups clear · no organic claimProduct details →4
47 / 1006 of 9 groups clear · no organic claimFind where to buy ↗Product details →3
47 / 1007 of 9 groups clear · no organic claimFind where to buy ↗Product details →4
40 / 1006 of 9 groups clear · no organic claimProduct details →2
40 / 1006 of 9 groups clear · no organic claimFind where to buy ↗Product details →3
How the clean score works

No setup needed, and strict: a full 100 needs every additive group clear and a verified organic claim (animal foods also need a verified grass-fed or pasture-raised claim; wild seafood and salt, which have no USDA organic standard, are scored without the organic points, and plant-based milks, cheeses and proteins without the feeding claim). Points: the nine additive groups (seed oils, artificial dyes, MSG, artificial sweeteners, carrageenan, artificial preservatives, hydrogenated oils, corn syrups, banned-abroad additives) share 60 points equally — not found earns a group’s full share, “may contain” earns half, listed earns 0; a verified organic claim is worth 25; a verified grass-fed or pasture-raised claim is worth 15 and counts only for animal foods. No claim, or an expired or unverified claim, earns nothing, so products without those claims cannot reach 100. Unverified or expired ingredient labels receive no score. Equal scores are equal. Ties are ordered by brand. Unknown and stale evidence never passes “Only show matches.” Producer claims and prices do not affect this score. This is not a nutrition, allergy, or safety rating.

As an Amazon Associate I earn from qualifying purchases. Buying links do not influence ingredient results. “Buy on Amazon” opens a reviewed product listing; “Find where to buy” opens the maker’s page. Confirm the package, seller, stock, and current price before checkout. Price observations expire after 30 days.

Primary sources

Sources

  1. Monteiro et al., Ultra-processed foods: what they are and how to identify them, Public Health Nutrition (2019) pmc.ncbi.nlm.nih.gov
  2. Lane et al., Ultra-processed food exposure and adverse health outcomes: umbrella review of epidemiological meta-analyses, BMJ (2024) pmc.ncbi.nlm.nih.gov
  3. Hall et al., Ultra-processed diets cause excess calorie intake and weight gain: an inpatient randomized controlled trial, Cell Metabolism (2019) pmc.ncbi.nlm.nih.gov
  4. WHO: healthy diet fact sheet (Jan 26, 2026) who.int