The same firms that engineered cigarette cravings now own your snack aisle

A public-health journal puts a tobacco logo on your cereal box

The American Journal of Public Health published a study arguing that the rise of ultra-processed food (UPF) is not just a story about industrial chemistry — it's a story about who owned the factories. The paper hit 214 points on HN and drew a thread that turned into a referendum on whether "ultra-processed" means anything at all.

The thesis: cigarette R&D, re-pointed at snacks

The study's claim is concrete: during the 1980s and 1990s, tobacco companies — Philip Morris (which absorbed Kraft and General Foods) and R.J. Reynolds (RJR Nabisco) — bought their way into the center of the American grocery store. With those brands came something more dangerous than the brands themselves: decades of in-house research into how flavor, salt, sugar, and fat combine to drive compulsive consumption. The paper's argument is that this expertise didn't stay in the tobacco division. It was deliberately transferred into food formulation and marketing, shaping which products got engineered, how they were tuned for craving, and how they were sold.

The through-line tobacco companies pioneered — manufacture a product whose appeal is partly chemical, deny the mechanism in public, and market aggressively to the young — maps, the authors argue, onto the modern UPF playbook. (The full text sits behind the AJPH paywall, which returned a 403 on fetch; the substance here is the study's stated thesis as carried in the discussion.)

The thread: "junk science" versus the ingredient list

The sharpest fault line was whether the category itself is real. The skeptics were blunt:

"Ultra-processed is a meaningless word used to get media attention. The state of nutrition science is abysmal." — a skeptic who rejects the UPF category outright

Against that, a commenter who works in chemistry laid out the actual machinery — not vibes, but a named list of what "ultra-processed" buys you:

"There are two driving factors behind ultra-processed food tech: shelf life and addictive potential… this impacts your gut microbiome negatively, puts added burdens on your liver and kidneys." — a commenter who catalogued the preservative and emulsifier systems by name

A third voice refused to treat tobacco-style marketing as a special evil, and instead indicted the whole industry:

"And this is different from all other marketing how? If tobacco style marketing is a problem that needs to be solved, then 95% of marketing needs to be banned." — a commenter arguing the practice is just ordinary marketing

And a fourth flipped the moral frame entirely — maybe a cigarette company selling food is the good outcome:

"I don't think US tobacco firms diversifying is bad… I'd rather they sold food than cigarettes. But, they want to sell high fat, high sugar, high salt PROFITABLE foods to people worldwide, not actual nutritionally balanced good food." — a long-time commenter weighing the diversification on its merits

One commenter watching the argument unfold was alarmed by the tilt of it: "the majority are DEFENDING Big Food," he wrote.

The real claim is about provenance, not chemistry

The defenders and the chemists are arguing past each other, and the study is mostly about the third thing neither side leads with: ownership. Whether or not "ultra-processed" is a tidy scientific category, the historical record the paper assembles is that the institutional knowledge of how to engineer compulsion didn't vanish when cigarette consumption fell in the West — it changed aisles. The argument worth keeping isn't "snacks are poison." It's that an industry built on denying its product's mechanism bought the companies that feed you, and brought its denial habits along. That's a claim you can check against acquisition records, not against a microbiome.