Millions of Americans with certain personality trait need extra 'protection' from ultra-processed foods... are YOU one of them?

Daily Mail​

28-07-2025

Some children are hardwired to overeat appealing and artificial ultra-processed foods linked to diabetes, obesity, heart disease, and depression.
They are born with what scientists call a strong food reward drive, an intense biological pull toward eating that makes them feel hungrier, eat faster, and struggle to feel full. Their brains are wired to seek out food more aggressively.
While children with this drive can regulate their eating with whole foods, such as fruits, vegetables, and lean proteins, ultra-processed foods, which are packed with refined sugars, industrial fats, and artificial additives, can overwhelm their brain's natural satiety signals.
These foods are designed to bypass fullness cues. Sugary or salty snacks trigger a rush of dopamine in the brain far more robust than apples or grilled chicken.
This dopamine rush causes the brain to seek out those same good feelings over and over again, often in the form of reaching for junk foods over whole produce and lean protein.
Having a strong food reward drive causes a person to crave food constantly, even when they're not hungry, and struggle to stop eating when they're full.
Scientists recommend avoiding ultra-processed foods in the grocery store altogether and reserving them for special occasions. Keeping them in the house while trying to moderate a child's eating habits rarely works, and not keeping them in the home is typically more successful, they said.
It is estimated that Americans obtain roughly 70 percent of their daily calories from ultra-processed foods and a growing body of research has linked a diet full of them increases a person's risk of chronic diseases including diabetes and cancer.
People who score highest on the Reward-based Eating Drive (RED) scale, a self-reported test on lack of satiety and a struggle to stop eating, are more likely to have a high BMI, obesity, and weight fluctuations.
Ultra-palatable foods activate the brain's opioid and dopamine systems. The dopamine rush keeps people coming back for more, while the opioid effect dulls feelings of fullness, stimulates endorphins, and increases cravings.
Research has shown that children with a strong food reward drive can regulate how much whole produce and lean protein they eat, but struggle doing the same with ultra-processed foods.
Research has suggested that some people are genetically predisposed to having fewer dopamine receptors, requring more junk food to attain the same flood of dopamine that hooks people.
Genetics don't solely influence eating behavior, though. If a child is frequently rewarded with junk food or it's constantly available, they are more likely to develop dopamine-driven habits.
But Parents have a significant influence on their children's eating habits.
One study found that around 21 percent of parents used food as a reward, which is associated with emotional overeating in their children.
Kerri Boutelle, a professor of psychiatry and pediatrics at the University of California, San Diego's School of Medicine, works with children struggling with their weight and overeating.
Her years of research have shown that children, even siblings, show different responses to ultra-processed foods.
'One child would eat half of the ice cream cone and put it down,' she told NPR. They have a low food reward drive, meaning that ultra-processed foods do not significantly alter their behavior.
'They just eat to get full, and then they move on,' Boutelle said.
The other child, who has a high food reward drive, would gobble up their ice cream cone and finish the other child's too.
'They want to eat all the time, and it doesn't matter if they're full,' Boutelle added.
'Those kids are going to gain weight in today's environment. I always tell parents, the environment today tricks kids into overeating.'
Reward-based eating is similar to but different from food addiction, which causes obsessive thoughts about food, a loss of control when eating, and continued overeating despite existing health problems, such as obesity or diabetes.
Around 20 percent of American children, more than 14 million, are obese. Roughly 300,000 of them have type 1 or type 2 diabetes.
Boutelle recommends that parents avoid buying ultra-processed foods altogether, but if they do, limit their purchases to three items, as having a wide variety can increase the risk of overeating.
'What you can do as a parent is make your home as safe as it can be for your children,' she said.