Ultra-processed foods should be regulated like tobacco

What's this about?

People disagree about whether ultra-processed foods should face rules like tobacco. These foods often have many added parts and change a lot in factories.

What supporters say

• Studies link eating lots of these foods with heart illness, weight gain, some cancers, low mood, and earlier death.
• One short study found people ate more and gained weight on ultra-processed meals than on less changed meals.
• Food texture, strong taste, and easy eating may make people eat more than nutrition labels suggest.
• Stronger limits on ads for unhealthy foods could help protect children, since voluntary promises have not worked well.

What critics say

• Studies that link these foods to illness cannot prove the food changes alone caused every health problem.
• Ultra-processed food is a very wide group, including foods with very different health effects.
• Tobacco harms people even in small amounts, but food helps people live and can fit into a healthy diet.
• Rules should target clearly unhealthy products, not treat every factory-made food like cigarettes.

The bottom line

Evidence supports stronger health rules for clearly unhealthy ultra-processed foods, especially ads aimed at children. But we do not yet have enough proof to regulate every ultra-processed food like tobacco.

Ultra-processed foods should face stronger public-health rules, advocates argue, because high consumption is tied to a wide range of illnesses. But the evidence does not yet support regulating every ultra-processed food as if it were tobacco.

The case for

The health case for action is substantial. Large reviews and long-term studies repeatedly link higher consumption of ultra-processed foods to heart and metabolic disease, cardiovascular illness, some cancers, mental-health problems and earlier death. These findings do not prove that processing alone causes every outcome, but they provide a strong population-health reason to move beyond simply telling individuals to make better choices. 1

A small but influential randomized feeding study adds more direct evidence. In a short inpatient trial, participants ate more calories and gained weight while eating an ultra-processed diet than while eating a minimally processed diet, even though the meals were presented as matched for calories and several nutrients (see Figure 1). The study suggests that factors such as a food’s texture, formulation, taste or ease of eating may encourage overconsumption in ways that standard nutrition labels do not capture. 2

Some tobacco-style tools also have evidence behind them when aimed at clearly unhealthy products or at children. Voluntary limits on advertising have been found inadequate to protect children from marketing of unhealthy foods, strengthening the case for mandatory restrictions on heavily marketed, energy-dense products. 3 Studies also suggest that nutrient warnings can help shoppers recognize unhealthy features and may change intended purchases, while taxes on sugar-sweetened drinks generally reduce purchases or consumption. 4

There is also a case for tighter rules around industry influence. Reviews have reported lobbying, intimidation and other commercial-political tactics in debates over ultra-processed-food policy. That evidence supports transparency rules, conflict-of-interest protections and independent oversight, even if food policy need not copy every aspect of tobacco law. 5

The case against

The central problem is that “ultra-processed food” is a very broad category. It includes obvious discretionary products, but also convenient staples that may have useful nutritional qualities. The NOVA system classifies foods by how they are processed, not by a fully proven ranking of health risk; meanwhile, some less-processed foods can still be high in sugar, salt or calories. Incomplete product and ingredient information can also make consistent classification difficult, creating real enforcement problems (see Figure 2). 6

The health evidence is compelling, but it is not as conclusive as the evidence against tobacco. Much of it comes from observational studies, which can be affected by differences in income, lifestyle, existing illness, diet reporting and other factors that are hard to fully separate. The randomized trial was short and small, and it could not show which feature of the diet caused greater intake or whether it leads directly to long-term disease. 7

Food also differs fundamentally from tobacco. Tobacco has a specific, addictive and lethal exposure profile, while food is essential and ultra-processed products range from treats to everyday items. Blanket penalties or limits on availability could therefore raise concerns about affordability, access and unequal effects on lower-income households, without the same level of evidence that underpins tobacco control. 8

Most importantly, policy evidence is strongest for narrowly defined targets: sugar-sweetened beverages, nutrient warnings and child-directed marketing of unhealthy products. There is little direct evidence that applying taxes, labels, advertising restrictions or availability limits to every ultra-processed food would deliver comparable health gains—or avoid substitution and administrative problems. 9

The bottom line

The evidence strongly supports meaningful, and in some cases mandatory, regulation of unhealthy food environments. Governments have a solid basis to restrict child-focused marketing of clearly unhealthy products, use targeted taxes and warning labels, improve access to minimally processed foods, and protect policymaking from commercial interference.

But the broader claim—that ultra-processed foods as a whole should be regulated like tobacco—is not yet supported. The main uncertainty is whether this diverse, processing-based category is precise enough to regulate as a single hazard. The best-supported approach is a graduated system focused on validated harmful nutritional features, well-defined high-risk products and settings, rather than treating every ultra-processed food as the equivalent of tobacco.