Big Food's Tobacco Moment: Ultra-Processed Food Lawsuits Target Coca-Cola, PepsiCo, and Ten Industry Giants

Tobacco companies paid out $250 billion after decades of hiding what they knew. The same legal playbook is now being run against the world's biggest food manufacturers — and the list of defendants reads like a who's who of Big Food.

Since December 2025, Coca-Cola, PepsiCo, Kraft Heinz, Mondelez, Mars, Nestlé, General Mills, Kellogg, Post Holdings, and ConAgra have been named in at least three separate lawsuits across the United States. Each case makes the same core argument: that these companies engineered ultra-processed foods to override the brain's natural hunger signals, drove chronic disease across millions of consumers, and did so knowingly.

The lawsuits are not coming from fringe litigants. The attorneys building these cases include the same firms and legal architects behind the tobacco and opioid mass torts — the two largest litigation campaigns in U.S. history, which extracted a combined $322 billion in settlements.

Three Fronts, One Strategy

In December 2025, San Francisco City Attorney David Chiu filed the first government-led action in U.S. history targeting ultra-processed food manufacturers. The suit — filed in San Francisco Superior Court against ten companies — claims they engaged in deceptive marketing and created a public health crisis that imposes direct costs on the city's healthcare system. A federal judge later remanded it back to California state court, where it will proceed.

In January 2026, a plaintiff in the U.S. District Court for the Eastern District of Louisiana alleged she developed Type 2 diabetes and non-alcoholic fatty liver disease from consuming ultra-processed foods. The complaint names the same roster of major manufacturers and argues they used internal research to engineer products that suppress satiety and drive compulsive consumption.

On April 27, 2026, a consumer class action seeking $1 billion in damages was filed in the U.S. District Court for the Eastern District of Wisconsin. It names twelve defendants — including Unilever, absent from the earlier suits — and makes nearly identical claims about addictive formulation and deliberate harm.

Three jurisdictions. Three legal theories. One core allegation: the companies knew, and they didn't stop.

Why the Tobacco Comparison Is More Than a Metaphor

The tobacco link is not just rhetorical. When RJ Reynolds acquired Nabisco in 1985 and Philip Morris bought Kraft in 1988, they brought with them internal research into dependency formation, reward conditioning, and sensory targeting. Plaintiffs' attorneys argue that this institutional knowledge was transferred directly into food product development — that the addiction-engineering that once sold cigarettes was applied to breakfast cereal and carbonated drinks.

The $250 billion Master Settlement Agreement tobacco companies signed in 1998 — and the $72 billion in opioid settlements since — are the benchmarks these attorneys are working toward. The legal infrastructure being built now mirrors the early phases of both campaigns: individual personal injury claims first, class consolidation next, state government suits alongside.

No settlements exist yet, but the pipeline is growing fast. At a major mass tort conference in early 2026, plaintiffs' attorneys explicitly called UPF litigation "the next tobacco." One early personal injury case was dismissed for failing to establish causation. Within months, more carefully constructed complaints appeared in its place. Courts are not killing this litigation — they are improving it.

The MAHA Effect: Political Tailwinds

The litigation arrives as Washington is formally hostile to ultra-processed food. In January 2026, the USDA's revised dietary guidelines called for "a dramatic reduction in highly processed foods" — the clearest official U.S. government statement yet that ultra-processed foods represent a public health crisis. The Make America Healthy Again initiative is applying direct political pressure on the sector from inside the federal government.

Regulatory condemnation creates a political context that emboldens plaintiffs and makes jury outcomes harder to predict. Tobacco plaintiffs benefited from exactly this dynamic: once the Surgeon General's office began treating tobacco as a public health emergency, jury sympathy shifted permanently.

The MDL Question Every Board Should Be Asking

The cases are not yet consolidated. As of mid-2026, the U.S. Judicial Panel on Multidistrict Litigation has not yet formed an MDL for ultra-processed food cases. Most observers expect this to change as the case count rises through 2026. An MDL would be a structural shift: one federal docket, coordinated discovery, shared expert witnesses, hundreds or thousands of plaintiffs moving in concert.

For defendants, MDL formation means losing the ability to fight cases jurisdiction by jurisdiction. Internal documents — research files, product testing records, marketing strategy memos — become shared across all cases simultaneously. This is the mechanism through which tobacco's internal documents became public. It is also how the opioid manufacturers' internal research destroyed their defences in court.

What Boards and Investors Need to Price In

These lawsuits will not resolve in 2026. Early cases will be dismissed, rewritten, and refiled. The process will be slow. But the lesson from tobacco and opioids is that the financial impact materialises long after the strategic window to respond has closed.

The companies named repeatedly across all three suits — Coca-Cola, PepsiCo, Kraft Heinz, Mars, and Mondelez — are now carrying unquantified contingent liabilities that do not yet appear in risk disclosures at the level tobacco companies eventually had to acknowledge.

Companies reformulating products, reducing additives, and building cleaner nutritional profiles are positioning themselves for both the litigation wave and the regulatory shift — not because the lawsuits will necessarily win, but because the political and consumer environment has already shifted permanently. The only open question is the size of the bill.