Just 5 minutes of junk food ads can drive kids to eat more: Study

Kids are like little sponges—soaking up everything they see, hear, and scroll through. And when it comes to junk food ads? Oh boy, they absorb that too—and fast. A new study just confirmed what most parents already kind of knew: it takes barely five minutes of junk food advertising to nudge kids into eating more.And here’s the kicker—it doesn’t even matter if the ad shows actual food.Researchers at the European Congress on Obesity found that even brand-only ads (think logos, jingles, and catchy slogans) can push kids to consume an extra 130 calories a day. That’s like an extra chocolate bar, a bag of crisps, or a few cookies—every single day—just from seeing a couple of ads. That might not sound like a huge deal, but those little extras really add up over time.And it doesn’t stop at TV. These ads are all over Instagram, YouTube, gaming apps, bus stops—you name it. If it’s a screen or a space, odds are it’s playing host to some fast food logo or sugary drink promotion.

So why are kids so vulnerable to this kind of marketing?

Well, kids aged 7 to 15 are still learning how to think critically. They don’t totally get that ads are designed to influence them. To them, it’s just fun colors, cool music, and maybe their favorite cartoon character dancing around holding a bag of chips. That positive vibe gets stuck in their heads—and next thing you know, they’re reaching for a snack, even if they weren’t hungry.Professor Emma Boyland, who led the research, explained it well: even a short exposure to ads for high-fat, salty, sugary food can drive kids to eat more. It’s not about the time of day or the kind of media—it’s about the emotional and psychological hooks that grab kids and steer their behavior, even subconsciously.

Childhood obesity

Let’s zoom out for a second and talk about the bigger issue: childhood obesity. It’s not just about looking chubby or having a little baby fat. It’s a growing public health crisis. More kids today are putting on excess weight due to a combo of poor eating habits, sitting around too much (hello, screens!), and constant exposure to tempting food messages.And this extra weight brings along some heavy baggage—like high blood pressure, type 2 diabetes, and joint issues. These are problems we used to see mostly in adults, but now they’re showing up in elementary school kids. And we can’t ignore the emotional side either. Kids struggling with obesity are more likely to deal with low self-esteem, teasing, bullying, and even depression.The worst part? This isn’t totally their fault. They’re living in a world that’s basically built to push junk food—from what’s on the menu at school to what they see between YouTube videos.

So what can we do about it?

For starters, some governments are stepping in. The UK, for example, is working on banning junk food ads before 9 pm. That’s a great start. But there’s more to be done—by parents, schools, advertisers, and even tech platforms.Here are a few real-world fixes we can work on together:Parents can get more involved in what their kids watch, and try to balance out screen time with outdoor play and home-cooked meals.Schools can offer healthier lunch options and teach kids about nutrition in a way that’s fun and easy to understand.Communities can build more parks, support sports clubs, and make being active accessible and exciting.It’s not about making kids feel guilty or ashamed. It’s about setting them up for a lifetime of health and confidence. That means less soda, more veggies, swapping couch time for bike rides, and maybe—just maybe—less exposure to a world full of flashy snack commercials.Because when it comes down to it, healthy kids mean a healthier future for everyone. And it all starts with what they see, what they eat, and how we, the adults in the room, step up and help.