"Processed" Isn't the Problem. "Ultra-Processed" Is.
"Just eat whole foods and avoid processed food." You've heard this a hundred times. It sounds simple. It's also almost useless advice, because canned beans are processed. So is frozen spinach, roasted almonds, and the block of cheddar in your fridge. If "processed" is the enemy, you'd have to give up most of what keeps a modern kitchen functional.
The distinction that actually matters isn't processed versus unprocessed. It's a system called NOVA, developed by Brazilian researchers in 2009, that sorts food into four groups based on what kind of processing happened and why.
Group 1 is whole or minimally processed food — produce, eggs, plain yogurt, dried beans. Group 2 is processed culinary ingredients like oils, butter, and salt — things you cook with, not foods on their own. Group 3 is processed food: bread, canned vegetables, cheese — usually just a Group 1 food combined with a Group 2 ingredient to extend shelf life or improve flavor.
Group 4 is where it gets interesting. Ultra-processed foods aren't just "more processed" versions of real food. They're industrial formulations built from ingredients you wouldn't find in a home kitchen — hydrogenated oils, protein isolates, modified starches, flavor compounds engineered specifically to make you keep eating. The tell isn't the ingredient list length. It's whether the additives are there to preserve the food, or to manufacture a sensory experience real food doesn't naturally have.
This is the distinction the "just avoid processed food" crowd — and, frankly, plenty of food marketing — glosses over. A company can put "made with real fruit" on a product that's still 90% ultra-processed filler, because technically nothing in the description is a lie. It's just not the whole picture. That's the same sleight of hand I spent a good part of my book chasing down: not outright lies, but framing designed to survive a fact-check while still leading you to the wrong conclusion.
I'll say this clearly, because I try not to overstate things: NOVA isn't perfect. Nutrition researchers who use it themselves point out that it lumps some genuinely fine foods — like store-bought whole grain bread or plant-based milk alternatives — into the same "ultra-processed" bucket as soda and packaged snack cakes, just because of how they're manufactured, not what they actually do in your body. If you want a deeper dive on the pros and cons of NOVA before you rebuild your grocery list around it, that's worth reading the primary research yourself rather than taking any one blogger's word for it — mine included.
But as a starting filter — "does this ingredient list read like a kitchen or a chemistry set?" — it's a far more useful question than "is this processed," and it's exactly the kind of quietly-buried distinction We're Not Sick, We're Being Sold is built around: not one big conspiracy, just a hundred small ways the full story never quite makes it to the label.
Knowing the distinction is step one. What to actually do with it at the grocery store — without turning every shopping trip into a label-reading marathon — is part of the REAL Protocol I lay out in the book's practical section.