A new long-term study may make you rethink when you eat your first meal of the day.

Researchers tracked about 3,000 adults ages 42 to 94 for more than two decades. They were not focused on calories, carbs or cholesterol. They looked at something many people rarely consider: what time they ate breakfast.

Most participants ate breakfast around 8 a.m. on average. Over time, though, many began eating later, sometimes closer to 10 or 11 a.m. The study found that each additional hour of delay was associated with roughly a 10% higher risk of earlier death. By the end of the follow-up period, people who regularly delayed breakfast into late morning had lower survival rates than those who ate earlier.

Before you swear off brunch, association is not the same as cause. It doesn’t mean that eating breakfast at 10 a.m. will shorten your lifespan. 

The researchers noted that eating breakfast later may be a marker of health, not the driver of it. In other words, if someone is dealing with fatigue, depression, pain, low appetite or dental problems, they may naturally get up later or put off eating. Those same challenges are also linked with shorter life expectancy. So the real question is whether delayed breakfast reflects underlying health issues rather than creating them.

Another important limitation: The study did not evaluate what people ate.

“Breakfast” can mean oatmeal and berries for one person, black coffee with sugar for another. And yes, breakfast has become a socially acceptable way to eat cake, cleverly rebranded as pancakes and waffles. Those choices affect blood sugar, blood pressure and heart health in very different ways.

A late-morning coffee, for example, may raise blood pressure for someone with undiagnosed hypertension. Instead, what their body needs is a more balanced meal with fiber-rich foods and key nutrients like potassium and magnesium.

As a pharmacist, I look at the bigger picture. Meal timing can offer clues, but food choices and medications also play a huge role in long-term health. Some blood pressure medications can deplete magnesium, a mineral that helps relax blood vessels. Coffee may also contribute to lower magnesium levels. I often refer to this as the “drug mugger” effect: When meals are skipped or replaced with coffee, it can set the stage for rising blood pressure over time and may worsen heart rhythm issues for some people.

What’s the takeaway?

Don’t panic if you prefer a later breakfast. Still, it’s a reminder to pay attention to patterns. If your breakfast keeps drifting later, it may be worth asking why. And whenever you do eat, make it count with foods that match your health needs.

Early bird or brunch lover, what’s on your plate matters more than the clock.