It’s terribly broken, which is unsurprising since it was never designed to do what it does, and ends up placing healthy, non addictive foods under the ultra processed category 4, while including hyper palatable foods that are not healthy at all in categories 1-3.
Hyper palatability, which is much better defined and is designed to capture what the NOVA system is actually used for, is likely a better categorization.
Speaking of Mesoamerican ingredients, nixtamal is pretty heavily processed, and is a staple in many areas, but it's much healthier than unprocessed corn which can cause pellagra when used as a staple food.
You seem to want the NOVA definition to classify between “healthy, non addictive foods” vs “hyper palatable foods”.
What these studies are doing is finding correlations between ultra processed foods and bad health. While the definition you seem to want would cause all sorts of circular definitions.
Yes. It does so very badly.
> You seem to want the NOVA definition to classify between “healthy, non addictive foods” vs “hyper palatable foods”.
If by "you", you mean "a ton of people who are involved in health policy", yes.
> What these studies are doing is finding correlations between ultra processed foods and bad health.
It's flawed because (A) Nova is so ambiguous and useless that we can't actually assume that "it was categorized via Nova" is true (B) what they hone in on is not actually related to Nova, it's actually about palatability, which Nova has no framework for. Inclusion of Nova is strictly detrimental to the conversation.
It's like "organic".
Too many variables are conflated to make any of this reasonable.
OTOH everybody intuitively understands junk food is bad for you, has a rough idea of what it is and that the definition is circular.
Ultra-processed doesn't even have a single, consistent definition.
"Processed" ends up meaning anything from "high in sugar" to "long shelf life" or "one of a dozen kinds of artificial sweetener" etc. It does more harm than good.
I can have an extremely high fiber, high protein, nutritionally well rounded meal that's also "ultra processed".
Someone mentioned Nova. Nova is a PERFECT example of how god awful the term is. When asked to classify foods into Nova categories there is almost no agreement amongst nutritionists.
https://www.nature.com/articles/s41430-022-01099-1 https://pmc.ncbi.nlm.nih.gov/articles/PMC8181985/
Time after time, Nova is shown to be more confusing than helpful, with worse than random results. Nova itself doesn't even attempt to correlate with "healthy".
Neither is there for speciation. Doesn’t make the term or concept useless. And doesn’t mean we can’t make useful statements about one species versus another, even if it gets blurry at the edges.
What framework has Nova helped develop for eating healthier?
Redirect your energy toward something useful.
https://onlinelibrary.wiley.com/doi/10.1111/1468-0009.70066
Which variables are conflated?
It asserts that UPF is bad because they tend to result in quicker absorption, amongst many other things. So why not say quick absorbing food is bad for you, and why use a definition that also includes food that is processed to absorb slower?
Then repeat across several other characteristics. Few UPF foods will bingo on all characteristics and a lot of non-UPF foods will bingo on many of the same characteristics.
This is like arguing astronomy isn’t real because colloquial definitions of space are ambiguous.
The study [1] uses a definition that finds a significant effect. We should investigate that further. If it pans out and the term ultra-processed food triggers people, we can rebrand it. (Did the cigarette lobby ever try muddying the water on what cigarettes are?)
[1] https://onlinelibrary.wiley.com/doi/10.1111/1468-0009.70066
https://en.wikipedia.org/wiki/Nova_classification
Presumably, since the first citation in the paper is said epidemiologist (Monteiro), this is the framework they rely on.
Unless you’re intent on scientific gatekeeping, in which case having actually read the reported study (it’s linked in the article fyi) would have offered much more effective methods of rebuttal than semantic quibbles.
Nova also does not even attempt to categorize in terms of health because "processed" has nothing to do with "healthy" despite being used in conversations about public health. Absolutely perfect example of how bad the term "processed" is.
Besides, 'ultraprocessed food' itself is and has always been a useless buzzword (buzzphrase?).
It also has enough overlap with addictive food to be a useful criterion.
In contrast "hyperpalatable" is more precisely describing the problem, but seems much more difficult to proof / easy for manufacturers to wiggle out of.
How would you prove that a given food item is "hyperpalatable"?
The Nova system's classification for UPFs seems to be what the majority of people who refer to them use as a definition.
In the Nova system, there are four main groups of food:
- Group one has 'unprocessed or minimally processed' foods, e.g. grains and fresh fruits.
- Group two has 'processed culinary ingredients'. These include foods that use naturally-derived ingredients like salt and flour.
- Group three has foods that combine the first two, like salted nuts, and can also include things with some added preservatives or flavourings.
- Group four is ultraprocessed foods. These are defined as industrially-manufactured foods made with multiple ingredients (typically multiple oils, sugars, fats, and salt) and ingredients with minimal culinary use.
The issue with group four is that it's far broader than it should be. For instance, under the Nova system sparkling water is a UPF because it's carbonated, and carbonation is considered a chemical additive. It also classifies anything with, say, Stevia as a UPF even though it's a perfectly safe artificial sweetener. It's broad enough that it covers tofu, various cheeses, and various breads, to name a few.
It also ignores the actual nutritional content of the foods (which the original Nova paper touches on, I think, specifically saying it's not meant to be used for nutrient profiling).
> How would you prove that a given food item is "hyperpalatable"?
I was recently looking at a study about this [0]. The three criterion that have been found to best define hyperpalatability are as follows:
(1) Foods with over 25% of calories from fat and more than 0.3% sodium by weight
(2) Foods with over 20% of calories from fat and more than 20% of calories from simple sugars
(3) Foods with over 40% of calories from carbs (not counting dietary fibre and simple sugars) and more than 0.2% sodium by weight
Please don’t tell me impossible burger patties are like cigarettes.
I guess “bad foods should be treated more like cigarettes” is too obvious.
Sometimes I wonder if the gluten free trend is a ploy by food processing companies to whitewash expensive proprietary processed foods as “whole”.
- non processed: fruits, grains, roots, leafs, pulses
- processed: pasta, breads, nuts milks, sorbet, fries
- UPF: most drinks, most sweeties, most prepared food
Some exceptions exists but don't change the general trend: - vegan burger: some are UPF, some are just smashed fallafels
- GF bread: rice or rye bread suits most gluten intolerants. Those suffering allergies have limited options obviously (which include abstaining from bread) but their medical condition isn't a "gluten free trend".
- meats cuts: some contains sodium nitrite and other nasty additives while others are just raw animals parts.I don’t need a term to be perfect to be useful.
For losing fat, "fried chicken", "chocolate cake", and "sugary drinks" are intuitively unhelpful, and "vegetables", "lean meat", "water" is more "healthy".
It's not that I didn't know that certain foods were unhealthy. The term UPF (understood to mean foods that are manufactured specifically to be hyper-palatable while otherwise lacking in nutrients) taught me the reasons why I find certain foods harder to resist than others, and consequently what foods I should focus on instead (higher protein / high fiber).
Not everyone has a good nutritional understanding of their foods, so these are short form efforts to try and help.
Rather than knocking what's out there, how about also trying to determine an alternative and see how challenging it is.
I read a lot of people poking holes, but not a lot of suggestions of how to improve things.
What we're talking about here is similar to the food pyramid, its a generalised approach to helping people understand what they should and shouldn't eat specific to the type of food and level of "processing". Something developed based on rising scientific evidence of the impacts of large consumption of highly processed or hyper palatable foods.
I'm not saying we shouldn't use the NOVA system, I'm asking those that bash it to come up with an alternative approach or remodel it. The same way the food pyramid has changed, whilst the zodiac system hasn't.