Consuming large amounts of ultra-processed food (UPF) increases the risk of an early death, according to a international study that has reignited calls for a crackdown on UPF.
Each 10% extra intake of UPF, such as bread, cakes and ready meals, increases someone’s risk of dying before they reach 75 by 3%, according to research in countries including the US and England.
UPF is so damaging to health that it is implicated in as many as one in seven of all premature deaths that occur in some countries, according to a paper in the American Journal of Preventive Medicine.
They are associated with 124,107 early deaths in the US a year and 17,781 deaths every year in England, the review of dietary and mortality data from eight countries found.
Each 10% extra intake of UPF, such as bread, cakes and ready meals, increases someone’s risk of dying before they reach 75 by 3%, according to research in countries including the US and England.
Was a bit surprised to see bread there, as it’s been a staple of many cultures’ cuisines for millennia. Did a quick search, and got some clarity in this list - “mass-produced packaged bread” is UPF, not the stuff you make from scratch or perhaps pick up from the local bakery.
A relief, actually, as I just took a loaf of sourdough out of the oven and was waiting for it to be cool enough to slice into. This article took the shine off the experience for a moment there 😅
Enjoy that sourdough!! I have always wanted to get into baking bread. I will eventually get there someday. The semolina my local bakery makes is 😗🤌 i love bread
Ooh, semolina, nice! Love me some Pane Siciliano… Think you just inspired my next loaf 🤭
(Highly recommend breadmaking as a hobby, if the spirit moves you. Very meditative - particularly the kneading - with bonus baked goods when you’re done!)
I’m sure the actual paper defines this better, but without a definition of what puts something in this category, it’s not useful.
Even for bread, is it all bread? Is it added gluten? Is it a specific preservative? Is it only bread with bleached flour?
Even so, mass produced and packaged is not the actual contributor…
Same with prepared food… Costco makes prepared food that is equivalent to what you’d make at home. It’s that still bad? If not, what other prepared food is fine?
Even for bread, is it all bread?
It’s most bread. There will always be a few outliers, but they’re a tiny minority.
Is it added gluten?
Gluten isn’t ‘added’ to bread, it’s a naturally occurring component of grains like wheat, rye and barley. Gluten free bread is made from alternative grains that naturally do not contain gluten (sorghum, rice, buckwheat, etc.). Gluten isn’t unhealthy unless you have Coeliac disease or a gluten sensitivity/intolerance. It won’t factor into UPF status.
Is it a specific preservative?
The ideal bread is preservative free. Mass-produced bread is almost never preservative free, because the time it takes for the bread to be baked, shipped, put on the shelf in a shop, picked up by you and taken home to eat is longer than it takes to go mouldy (particularly if it’s in a plastic bag). Hence, they add a preservative to extend the shelf life.
A bakery is less likely to use preservatives, because they bake fresh daily, based on customer demand. Homemade bread also doesn’t need preservatives for pretty much the same reason.
No need to demonise preservatives, or split hairs over “better” or “worse” ones, but worth being mindful of the amount you consume.
Is it only bread with bleached flour?
Bleached flour improves performance for baking (making lighter, fluffier loaves with more ‘bounce’ and chewiness from the gluten), but also strips out a lot of the minerals that are beneficial for your health. Mass-produced bread tends to use bleached flour, because a white and fluffy loaf is more appealling to consumers than a denser and darker one, and the lighter consistency makes it less filling, leading you to consume more of it, which means more money for them. Given the choice between bleached and unbleached flour, choose the latter if you can.
So, yes, ‘mass-produced and packaged’ does tend to correlate directly with the overall nutritional content.
Costco makes prepared food that is equivalent to what you’d make at home.
I can only speak for myself on this one, but I’ve never seen a pre-prepared meal at Costco that is the equivalent of what I’d make at home. It tends to be carb, fat and animal protein heavy, and very light on veg. My cooking is the opposite (lots of veg, some complex carbs, not too much fat or animal protein).
Just like the preservatives and bleached flour in bread, companies who mass-produce food are looking to use the cheapest ingredients with the longest shelf life to maximise their profits. Makes good business sense for them, but not good health/nutritional sense for consumers.
The food industry is going to go through the same rebuke that the tobacco industry went through only bigger.
It’s astonishing to me that scientists are using such unscientific terms like “ultra processed food”. What is it about these foods that is unhealthy?
It’s like saying “sports are dangerous” while including football and golf in your definition.
Scientists only use terms like ultra processed food after defining them in their scientific papers. The problem here is that the media find it difficult to write a short article for the general audience if they have to define things scientifically.
What specifically is bad about UPF foods is still being researched. A few leading ideas are:
- Very little fibre
- Starches are all immediately accessible to digestion and so blood glucose spikes much more than for the non-UPF equivalent
- UPF foods are soft and dry (so weigh less) making it very easy to eat a lot very fast, so you eat too many calories.
- Relatively high in salt and sugar
- Use of emulsifiers. These may change your gut microbiota and also make your gut more leaky causing inflammation
- Use of preservatives and artificial colours
- Frequently have a lot of oil
Low fibre, emulsifiers and preservatives, while lacking variety of phytochemicals found in fresh food is known to change your gut health. People on UPF diets tend to eat more and have higher blood glucose spikes leading to heart disease and diabetes.
Altogether this is a recipe for a shorter, less healthy life
Those are shit definitions that come from pop-science not real science. They’re so broad as to be functionally useless.
Is UPF food with ultra high fibre bad? Is UPF with ultra high vitamin A bad?
Is UPF food with ultra high fibre bad?
I don’t know.
My thoughts are that your total daily intake is more important than considering any single food item. As such, having some UPF in your diet is ok. The problem becomes epidemiologically measurable when, like the UK and US, 60% of calories consumed by some demographics are from UPF food.
And there are almost certainly multiple different things ‘wrong’ with UPF and so if you fix one problem, you may still be at risk from another. For example in your question, there are a lot of studies showing the importance of fibre in the diet, including those that add bran to whatever the person normally eats. So UPF with lots of fibre, all things equal, is likely less bad than UPF without.
Is UPF with ultra high vitamin A bad?
Fat soluble vitamins (A, D, E and K) are interesting in that they don’t show benefits above RDA, and in high doses cause a long list of nasty symptoms. In particular, vitamin A in excess is correlated with increased risk of multiple major diseases and even death.
There is no single definition of ultra-processed foods, but in general they contain ingredients not used in home cooking.
Many are chemicals, colourings and sweeteners, used to improve the food’s appearance, taste or texture.
Fizzy drinks, sweets and chicken nuggets are all examples. However, they can also include less obvious foods, including some breads, breakfast cereals and yoghurts.
A product containing more than five ingredients is likely to be ultra-processed, according to public health expert Prof Maira Bes-Rastrollo of the University of Navarra in Spain.
Ultra-processed foods are often high in salt, sugar and saturated fats. In the UK, look out for a “traffic light” label on the packaging.
https://www.bbc.co.uk/food/articles/what_is_ultra-processed_food
Thank you for the details - as you point out this is a functionally useless definition.
It reeks of “You know what I mean - that bad stuff”. And that’s not a good scientific definition.
A product containing more than five ingredients is likely to be ultra-processed
Curry is “ultra-processed” - you heard it hear first.
Like I said - “Sports are dangerous” is a very bad way to try to categorize risky activity. Golf and football are very different as are Curry and Twizzlers.
Yea the 5 ingredient stuff is weird, what if I make a 5 fruits salad. To me the number of unnatural processing steps (processes that don’t occur regularly in nature) makes more sense.
Yes, curry is processed food. It goes through the unnatural process of high heat cooking. I’m not sure about healthy-ness, I think a lot also depends on dosage. I don’t see processing as always being bad.
To me, Dosage makes the poison.
Drinking 4 gallons of curry in 1 sitting is probably bad, same as drinking 4 gallons of unprocessed water in one sitting.
Yeah, but it’s delicious and makes me feel good and I don’t want to be 90 anyway. Wait, smokers say that. Shit.
It’s a shame that bread and donuts are de facto considered ultra processed foods now. Done right, they totally aren’t.
The pictures also shows french fries and popcorn. In my house those are literally just potatoes and olive oil and popcorn and olive oil respectively, maybe some salt. Bad for me? Maybe, but ultra processed?
I think they might be referencing the pre-packaged-already-popped popcorn or the microwavable version.
I hope so. I admit, I didn’t read the article.
I’m rather surprised you are able to pop corn with olive oil. Temp-wise you would hit the smoke point well before the oil was hot enough to pop the kernals, which would be smoky misery in the kitchen.
Nope works fine. But you can’t use extra virgin olive oil. It has a lower smoke point. Also I’ve found you can do a small bowl or a regular bowl but a large one is best done in two shots.
I used to just use a brown paper bag. Put about a teaspoon of olive oil in the bottom and a little less than a 1/4 cup of popcorn in the bottom (it will start to bleed through, so I put it on a paper towel), put a couple staples in the top (no they won’t spark) and nuke for maybe a couple of minutes.
This did not produce enough popcorn for my addiction, so I started using as plastic microwave popcorn bowl someone gave me. It was more or less the same recipe but I was able to up the quantity a little bit. I didn’t like cooking in plastic though, so now I use a Pyrex bowl with a square plate over the top. The square plate is too keep the popcorn in but still have a little space for the steam to escape. I like not having plastic in the equation anymore but there are some drawbacks.
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It takes about 5.5 minutes now(1st world problem).
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The bowl gets really hot so you MUST use oven mitts to handle it.
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The salt, which I put in before popping, seems to stay more in the bowl than on the popcorn.
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I’m constantly worried that at some point the bowl is just going to explode.
YOU’RE USING A MICROWAVE?!?!?!

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Even done fast they could be better.
The Aerated Baking Company had bread close to as fast and cheap as the modern Chorleywood process, but it isn’t ultra-glutenous. They were also an early feminist icon.
I feel like we’ve known this for a very long time
That hot dog bun and the cupcake with a head next to it are concerning
There’s bread and there’s bread and there’s bread. All are highly processed, given the milling, kneading, fermentation, and baking required for bread, but there’s a huge gap between wonder bread and Russian black bread. I’d be very surprised if the latter is worse for you than bananas, a starch we eat with very little processing
I switched from white bread to 100% whole grain about a decade ago after learning just how much better it was supposed to be. I wonder if it’s actually still pretty awful after reading this
No, it’s not. This refers to pre-packaged bread, e. g. white bread, toast etc. - the stuff you find in a supermarket shelf, full of preservatives and other additives.
What about smoking, can you make a study on that too? /s
Actually it’s important to do these studies so that you have real proof, but man was the outcome not unexpected.
We know
Bread is UPF???
probably depends on the type of bread. sliced bread commonly sold in the uk is certainly UPF
this feels like common sense
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