This article is from the source 'bbc' and was first published or seen on . It last changed over 40 days ago and won't be checked again for changes.

You can find the current article at its original source at https://www.bbc.co.uk/news/health-48446924

The article has changed 3 times. There is an RSS feed of changes available.

Version 1 Version 2
Ultra-processed food linked to early death Ultra-processed food linked to early death
(about 3 hours later)
Ultra-processed foods - such as chicken nuggets, ice cream and breakfast cereals - have been linked to early death and poor health, scientists say.Ultra-processed foods - such as chicken nuggets, ice cream and breakfast cereals - have been linked to early death and poor health, scientists say.
Researchers in France and Spain say the amount of such food being eaten has soared.Researchers in France and Spain say the amount of such food being eaten has soared.
Their studies are not definite proof of harm but do come hot on the heels of trials suggesting ultra-processed foods lead to overeating.Their studies are not definite proof of harm but do come hot on the heels of trials suggesting ultra-processed foods lead to overeating.
Experts expressed caution but called for further investigation.Experts expressed caution but called for further investigation.
What are ultra-processed foods?What are ultra-processed foods?
The term comes from a way of classifying food by how much industrial processing it has been through.The term comes from a way of classifying food by how much industrial processing it has been through.
The lowest category is "unprocessed or minimally processed foods", which include: • fruit • vegetables • milk • meat • legumes such as lentils • seeds • grains such as rice • eggsThe lowest category is "unprocessed or minimally processed foods", which include: • fruit • vegetables • milk • meat • legumes such as lentils • seeds • grains such as rice • eggs
"Processed foods" have been altered to make them last longer or taste better - generally using salt, oil, sugar or fermentation."Processed foods" have been altered to make them last longer or taste better - generally using salt, oil, sugar or fermentation.
This category includes: • cheese • bacon • home-made bread • tinned fruit and vegetables • smoked fish • beerThis category includes: • cheese • bacon • home-made bread • tinned fruit and vegetables • smoked fish • beer
Then come "ultra-processed foods", which have been through more substantial industrial processing and often have long ingredient lists on the packet, including added preservatives, sweeteners or colour enhancers.Then come "ultra-processed foods", which have been through more substantial industrial processing and often have long ingredient lists on the packet, including added preservatives, sweeteners or colour enhancers.
Prof Maira Bes-Rastrollo, from the University of Navarra, told BBC News: "It is said that if a product contains more than five ingredients, it is probably ultra-processed." If a product contains more than five ingredients, it is probably ultra-processed, says Prof Maira Bes-Rastrollo, of the University of Navarra, citing a maxim.
Examples include: • processed meat such as sausages and hamburgers • breakfast cereals or cereal bars • instant soups • sugary fizzy drinks • chicken nuggets • cake • chocolate • ice cream • mass-produced bread • many "ready to heat" meals such as pies and pizza | meal-replacement shakesExamples include: • processed meat such as sausages and hamburgers • breakfast cereals or cereal bars • instant soups • sugary fizzy drinks • chicken nuggets • cake • chocolate • ice cream • mass-produced bread • many "ready to heat" meals such as pies and pizza | meal-replacement shakes
How bad were the findings?How bad were the findings?
The first study, by the University of Navarra, in Spain, followed 19,899 people for a decade and assessed their diet every other year. The first study, by the University of Navarra, in Spain, followed 19,899 people for a decade and assessed their diet every other year. There were 335 deaths during the study.
There were 335 deaths during the study.
But for every 10 deaths among those eating the least ultra-processed food, there were 16 deaths among those eating the most (more than four portions a day).But for every 10 deaths among those eating the least ultra-processed food, there were 16 deaths among those eating the most (more than four portions a day).
The second study, by the University of Paris, followed 105,159 people for five years and assessed their diet twice a year.The second study, by the University of Paris, followed 105,159 people for five years and assessed their diet twice a year.
It showed those eating more ultra-processed food had worse heart health.It showed those eating more ultra-processed food had worse heart health.
Rates of cardiovascular disease were 277 per 100,000 people per year among those eating the most ultra-processed food, compared with 242 per 100,000 among those eating the least.Rates of cardiovascular disease were 277 per 100,000 people per year among those eating the most ultra-processed food, compared with 242 per 100,000 among those eating the least.
Dr Mathilde Touvier, from the University of Paris, told BBC News: "The rapid and worldwide increasing consumption of ultra-processed foods, to the detriment of less processed foods, may drive a substantial burden of cardiovascular diseases in the next decades." The rapid increase of ultra-processed foods over less processed foods, "may drive a substantial burden of cardiovascular diseases in the next decades," said Dr Mathilde Touvier, of the University of Paris.
So do these foods damage health?So do these foods damage health?
Dr Mathilde Touvier, from the University of Paris, told BBC News: "[The] evidence is accumulating. "[The] evidence is accumulating," said Dr Touvier, noting "increasing numbers of independent studies". Prof Bes-Rastrollo said she was "very certain" ultra-processed foods were bad for health.
"Increasing numbers of independent studies observe associations between ultra-processed foods and adverse health effects."
Last year, a link was made with an increased risk of cancer.Last year, a link was made with an increased risk of cancer.
Prof Bes-Rastrollo, from the University of Navarra, told BBC News she was "very certain" they were bad for health. The challenge is being 100% sure. The studies have spotted a pattern between highly processed food and poor health but they cannot prove that one causes the other.
The challenge is being 100% sure.
The studies have spotted a pattern between highly processed food and poor health but they cannot prove that one causes the other.
Those who ate the most ultra-processed food were also more likely to have other unhealthy behaviours, such as smoking, which the researchers tried to account for.Those who ate the most ultra-processed food were also more likely to have other unhealthy behaviours, such as smoking, which the researchers tried to account for.
But Kevin McConway, a professor of statistics at The Open University, said: "One can't be sure that everything relevant was allowed for. But there's no guarantee everything relevant was covered, says Kevin McConway, a professor of statistics at The Open University.
"These studies do increase my confidence that there's something real behind these associations - but I'm still far from sure.""These studies do increase my confidence that there's something real behind these associations - but I'm still far from sure."
Why might ultra-processed foods be bad?Why might ultra-processed foods be bad?
The first trial of ultra-processed foods showed they led people to eat more and put on weight.The first trial of ultra-processed foods showed they led people to eat more and put on weight.
Researchers at the US National Institutes of Health monitored every morsel of food that volunteers ate for a month.Researchers at the US National Institutes of Health monitored every morsel of food that volunteers ate for a month.
And when given ultra-processed food, they ate 500 calories a day more than when they were given unprocessed meals.And when given ultra-processed food, they ate 500 calories a day more than when they were given unprocessed meals.
Other suggestions include:Other suggestions include:
These ideas still need researching.These ideas still need researching.
Is there any useful advice?Is there any useful advice?
While the term ultra-processed food may be new, the health advice coming out of the study will be very familiar. While the term ultra-processed food may be new, the health advice will be very familiar: adopt a Mediterranean-style diet.
Victoria Taylor, senior dietician at the British Heart Foundation, said: "We already recommend people adopt a Mediterranean-style diet, which also happens to include plenty of minimally or unprocessed foods, such as fruit, vegetables, fish, nuts and seeds, beans, lentils and wholegrains. Such a diet includes plenty of minimally or unprocessed foods, such as fruit, vegetables, fish, nuts and seeds, beans, lentils and wholegrains, said Victoria Taylor, senior dietician at the British Heart Foundation.
"This, along with exercising regularly and not smoking, has been shown to be beneficial for lowering risk of heart and circulatory disease.""This, along with exercising regularly and not smoking, has been shown to be beneficial for lowering risk of heart and circulatory disease."
Prof Bes-Rastrollo thinks there is already enough evidence for governments to start acting too. Measures such as taxation and marketing restrictions on ultra-processed foods, should be considered, said Prof Bes-Rastrollo, given the weight of evidence.
She said: "Measures like taxation and marketing restrictions on ultra-processed foods to discourage consumption [should be considered].
"At the same time, promotion of fresh and minimally processed food is a requirement."
Is the ultra-processed label a load of nonsense?Is the ultra-processed label a load of nonsense?
Describing foods as ultra-processed has a lot of critics. There are certainly a lot of critics.
Dr Gunter Kuhnle, an associate professor in nutrition and health at the University of Reading, said the studies were important and warranted further investigation. The labelling of food as ultra-processed could be inconsistent, said Dr Gunter Kuhnle, an expert in nutrition and health at the University of Reading
But the labelling of food as ultra-processed could be inconsistent. "It is also not obvious why salami is considered to be ultra-processed, yet cheese, which often requires considerably more processing steps and additives, is not. The classification combines a wide range of foods with very different potential impacts on health, which limits its usefulness as a basis for recommendations."
He said: "It is also not obvious why salami is considered to be ultra-processed, yet cheese, which often requires considerably more processing steps and additives, is not.
"The classification combines a wide range of foods with very different potential impacts on health, which limits its usefulness as a basis for recommendations."
The studies were published in the British Medical Journal.The studies were published in the British Medical Journal.
Follow James on Twitter.Follow James on Twitter.