“Fast food chains add chemicals to their food that are intended to be addictive and encourage repeat purchases.”

“First, I will demonstrate that ultraprocessed food is addictive because of the sugar that is added to it, and that the food industry specifically adds sugar because of its addictive properties. Fast food contains four components whose hedonic properties have been examined: salt, fat, caffeine, and sugar. Some investigators have argued that specific components of processed food, and in particular those in “fast food”, are addictive in a manner similar to cocaine and heroin.”

“Released industry documents have revealed that the same tobacco industry leaders admitted to applying the techniques used to enhance the addictive properties of tobacco products to the development of UPFs (e.g., use of additives to enhance flavor, texture, and visual appeal) in order to maximize profits. As such, the direct role of UPFs in driving the obesity epidemic may be at least partially explained by the tobacco industry's involvement in designing UPFs to be highly reinforcing, using practices like those used for maximizing the addictive potential of tobacco.”

“The added fat, sugar, and salt create a taste that makes people crave these foods, a sensation that many describe as an addiction. Both sugar ...”

“A recent review found that ultraprocessed foods (UPFs) may be as addictive as tobacco products. The researchers found that UPFs are designed to heighten reward and accelerate the delivery of reinforcing ingredients. The “addictive” quality of these foods means they drive compulsive consumption and disrupt appetite regulation. “Cigarettes and UPFs [ultraprocessed foods] are not simply natural products but highly engineered delivery systems designed specifically to maximize biological and psychological reinforcement and habitual overuse,” noted the new study's research team from Harvard, Duke, and the University of Michigan.”

“Ultraprocessed foods (UPFs) are designed to provide a burst of intense flavor as quickly as possible, driving compulsive consumption and appetite dysregulation. A new conceptual analysis published in The Milbank Quarterly explored how the UPF industry borrowed its tactics from the tobacco industry. UPF design is intended to promote habitual repeated consumption of these products, by engineering five key aspects: dose optimization – to produce intense but not overwhelming pleasure and induce craving for more of the same; delivery speed – stripping away the natural food matrix to ensure extremely rapid digestion, delivering reinforcing elements almost immediately to the brain; hedonic engineering – ensuring a rapid decline in sensory pleasure, thus inducing craving.”

“Highly processed foods often “have unnaturally high levels of both carbohydrates and fat.” When we eat these foods, we get a quick “hit” of carbs and fats that give the brain a boost. That makes us want to eat them again and again. Companies add extra sweeteners and flavors “to increase the appeal of something which is, in fact, not that tasty, nutritious or healthy.””

“Modern nutritional research reveals a disturbing fact: ultra-processed foods that are ubiquitous in daily life may have addiction potential comparable to those traditionally recognized as addictive substances. This addiction is not only reflected in behavioral dependence but also exhibits striking similarities at the neurobiological level with substance addiction. These foods are meticulously designed to deliberately enhance certain sensory properties like sweetness or crispness, and the specific ratios of components like carbohydrates and fats (especially near 1:1) can create unique 'reward effects.'”

“A US attorney who is suing some of the biggest food manufacturers is accusing them of deliberately designing products to be addictive - despite the harm they are known to cause. The lawsuit alleges the companies deliberately designed the foods to be addictive and marketed them to maximise profit, in full knowledge they make people sick. David Chiu, a San Francisco city attorney, stated, "Our case is about companies that have designed these foods to be addictive, marketed it to maximize profits, and like the tobacco industry years ago, they knew their products made people very sick, but they hid the product, hid the truth from the public."”

“There is growing recognition that hyperpalatable foods high in sugar, fat and sodium can produce addictive processes in the brain, such as drugs of abuse. Animal models and human neuroimaging studies have repeatedly shown that foods rich in sugar and fat activate the brain reward circuitry in ways comparable to those of addictive substances. She suggested that repeated consumption of hyperpalatable foods, such as those high in sugar and processed ingredients, leads to dopamine neuroadaptation, wherein the brain's reward system becomes desensitised, requiring larger amounts of food to achieve the same level of pleasure.”

“Gearhardt et al in the British Medical Journal discusses how ultra-processed food high in carbohydrates and fats are addictive substances. It has also been found that intake of processed foods with high levels of refined carbohydrates or added fats, such as sweets and salty snacks, are addictive. These types of foods are most strongly implicated in behaviors of addictions such as excessive intake, loss of control over consumption, intense cravings, and continued use despite negative consequences.”

“A 2024 review also highlights that some research highlights potentially addictive qualities of ultra-processed food items, such as fast food.”

““We found phthalates and other plasticizers are widespread in prepared foods available at U.S. fast food chains, a finding that means many ...” (Note: Focuses on contaminants like phthalates from packaging, not intentionally added addictive agents by chains.)”

“Fast food triggers the reward system in your brain. This includes the release of dopamine, a potent chemical transmitter of the nervous system. Dopamine is associated with pleasurable feelings. Foods high in sugar, salt, and flavor trigger a greater dopamine release.”

“Fast-food chains are no longer simply rewarding repeat customers - they're restructuring their entire loyalty approach. Subscription services and gamified rewards are turning once-sporadic transactions into habitual spending, offering brands a more reliable revenue stream.”

“Cultivating a base of repeat customers isn't just a bonus; it's fundamental to your restaurant's long-term health and profitability. Loyal patrons offer immense value in several key ways: Stable Revenue Stream, Increased Profitability, Free Marketing Power, Reduced Marketing Spend, Valuable Feedback.”

“Hyperpalatable products override the multiple mechanisms the body has in place to manage hunger and stop eating. These products beat out hormones, the stretch responses in your stomach and intestines (which signal you're full) and can even manipulate your mood. Hyperpalatable foods interfere with the bodies balance of minerals and nutrients, compounds essential for health.”

“While many studies suggest ultra-processed foods trigger addiction-like behaviors via sugar, fat, and salt, major health organizations like WHO and FDA do not classify foods as addictive substances akin to drugs; the debate continues with no formal regulatory recognition of 'food addiction' as a disorder in DSM-5 beyond related eating disorders.”

“Food companies purposely manufacture foods to be addictive. Learn why this happens and better alternatives to these addictive processed ...”