We are probably all used to getting five-alarm headlines about the perils of some food or other, just to read later on “uh, never mind. It’s all good.” Nutritional research is infamous for big pendulum swings on its pronouncements about the goodness or badness of foods (just search “fit is a feminist issue eggs” for more info).
I’ve written on worries about ultra-processed food a couple of times for the blog:
The newest processed food nutrition studies: more to chew on
New news on ultra-processed food: similar verdict but with more nuance and context
Two reasons why the picture on ultra-processed foods and health hasn’t been so clear:
- The classification system for level of processing in food is a work in progress, and some foods (like grocery store bread) count as ultra-processed even though they have high nutrition value.
- Our industrial food system delivers mostly processed and ultra-processed food to most people, leaving them with little access to less processed food; so it’s not reasonable to say “don’t eat these foods” without a new plan in mind.
This very useful (and freely accessible) article in the Conversation by the authors of three new papers on ultra-processed foods lays out a clearer and more dire story.
Here’s the short version:
The food industry’s production of processed foods is changing diets worldwide.
In the United States, United Kingdom and Canada, it’s been consistently high for decades (around 50% of daily energy). Ultra-processed foods are essentially the national diet. The same goes for Australia.
It’s not that the global eating public has become lax or lazy– these products are designed not only to be high in sugar, salt, and fat. Their tastes and textures promote overeating.
Crucially, it’s not just about “too much sugar, salt and fat”. Clinicaltrials show that when adults eat diets heavy in ultra-processed foods, they consume about 500–800 extra calories per day, gain weight and fat mass, and eat more rapidly, when compared with eating a non-ultra-processed diet with the same proportions of macronutrients. This is likely because of higher energy density, tastiness, and soft textures that make overeating ultra-processed foods easy.
Almost a hundred long-term studies show significant health risks associated with a diet high in ultra-processed foods.
92 [studies] reported greater associated risks of one or more chronic diseases. Meta-analyses of these studies confirmed associations for obesity, type 2 diabetes, high blood pressure, high cholesterol, cardiovascular disease, chronic kidney disease, Crohn’s disease, depression, and early death from all causes.
Addressing this global health problem requires big policy solutions, not individual willpower.
Steps recommended by the authors of three papers on this subject in the Lancet medical journal are:
- changing the composition of food products
- fixing food environments
- curbing corporate power
- addressing subsidies and supply chains
Yes, these are nutrition policy wonk solutions, with complex details and long-term goals. But we all know that really big changes rarely happen without a lot of people working together, exerting political, scientific and economic influence.
So, what can we do? Keep reading, keep (or start) cooking when we can, keep voting, and keep remembering that change is slow, but change can and does happen. I believe this, and encourage you to believe it, too.




















