Inc.
As more people eat alone, scientists are uncovering surprising links between social connection and physical health.
Science Just Revealed the Worst Way to Eat a Meal (and Many of Us Do It Every Day)
Author: Jessica Stillman
Thompson has been chronicling America’s “party recession” for some time. So I was vaguely aware that various surveys show we’re spending more and more time alone and less and less hanging out with other humans.
But his latest article pulled together even more startling evidence for just how rarely we have people over to our homes these days.
After sifting through various data sources, Thompson discovers: “The share of Americans who say they host friends or family at their home at least monthly has fallen from 42 percent in 1975 to 12 percent in 2026—a 70 percent collapse in a half century.”
Combine that sad statistic with numbers from the American Time Use Survey showing that more than a quarter of Americans eat most of their meals alone, and you paint a really stark picture of our lonely eating habits.
Which is sad. But according to a new study, it’s also bad for our collective health. Researchers have discovered that solo dining directly impacts how your body processes food in worrying ways.
The health toll of eating alone
Thompson spends a lot of time in his article trying to puzzle out why we’re suddenly so averse to sharing a meal. Is it about women entering the workforce and not having time for their traditional hosting duties? Maybe we’re spending our time helicopter parenting or distracted by screens instead? Are we just too busy or poor?
It’s a fascinating discussion. But your pancreas is unaware of the debate. And according to a new study out of Israel recently published in Science Advances, whatever the reasons for our shift away from sharing meals, our bodies physically react to all this solo eating.
The researchers recruited 100 volunteers and gave them the not-too-taxing task of eating a slice of bread and then allowing the scientists to monitor their blood sugar levels for a couple of hours afterwards. The twist was that half of the participants ate their bread alone and half munched while hanging out with a friend.
Everyone had the same plain slice of white bread. But not everyone’s body reacted the same way. Participants who had company saw their blood sugar spike less and return to pre-meal levels faster.
“Blood sugar regulation is not just about what we eat, but who we eat with,” commented study co-author Shir Atzil.
Not just a worry for diabetics
Obviously, spikes in your blood sugar levels are bad if you are diabetic or even pre-diabetic. But the researchers insist this work is important for, well, basically everyone.
First, because medical experts agree that more stable blood sugar levels are generally better for your mood and energy, as well as for your all-around health.
“Regardless of whether you have diabetes, when your blood sugar isn’t stable, it can affect how you feel, eat and function throughout the day,” UCLA Health senior dietitian Christine Goukasian has warned. “Over time, frequent blood glucose spikes can make weight loss difficult and contribute to metabolic changes that increase your risk for chronic diseases, including diabetes.”
That means scarfing a personal pan pizza alone is likely worse for your all-around health than sharing a pie with a couple of friends. Even if it’s the exact same pizza.
“Our bodies run better together.”
There’s a larger lesson here too. We’re often told that socializing helps protect our mental and physical health. You may have heard, for instance, that super agers who reach advanced ages in great shape are generally quite social. Scare warnings about the health toll of loneliness abound.
These threats can sound a little abstract. It’s not fun to never go to any parties and eat most of your meals alone, sure. But how does that translate into lost years of health and vitality? Well, this study shows you how. Being alone has real, measurable, and negative impacts on how your body functions.
“We used to think of the body as an isolated system that regulates itself,” Atzil explains. “Our findings show that human physiology is inherently social. Being close to someone you love lowers the physical energy your body spends on regulating itself … Our bodies run better together.”
That shows up in our blood sugar levels. But it shows up elsewhere too. The bread study was actually part of a larger research project that also looked at how being alone or together impacts our physical responses. Other experiments showed we also regulate our response to cold and stress better when there is company around too.
Solo scarfing is tempting … and harmful
Thompson concludes his article by acknowledging the seductions of solo entertainment.
“Compared with TikTok, a dinner party is a terrible leisure technology. It requires matching schedules, cleaning the house, buying food, accommodating children and allergies, tolerating awkwardness, and taking the risk that the evening is mediocre. By contrast, what does television ask of us? Nothing,” he writes.
Heating up some leftovers to scarf while you’re half watching Netflix is convenient. Believe me, I understand how incredibly tempting it can be to eat this way on a tired Tuesday night. But giving in too frequently to the impulse to chill alone isn’t just sad. Eating alone — being alone generally — has biological consequences.
All those experts yelling at you to socialize more aren’t speaking metaphorically when they say too much solo time is bad for you. Being alone physically impacts how our body responds to food, stress, and cold in ways that make us less resilient and, over time, less healthy.
So maybe take a colleague out to lunch or invite someone over for dinner this week. Your pancreas will thank you.
Credits: TCA, LLC.