Could Skipping Breakfast Increase Your Risk of Heart Disease?

Updated July 2026

You've heard that breakfast is the most important meal of the day, and skipping it has become more and more common, with roughly a quarter of young adults never eating it. It turns out the old adage may carry more weight than we realized. A growing body of research links skipping breakfast not just to weight gain, but to a measurably higher risk of dying from heart disease and stroke.

Is it bad to skip breakfast?

The evidence increasingly says yes, at least where your heart is concerned. Skipping breakfast has long been tied to higher rates of overweight and obesity, but the more striking findings are about cardiovascular risk. In one frequently cited study, scientists followed more than 6,500 people for around 20 years and found that those who never ate breakfast were nearly 2.5 times as likely to die of heart disease, and about 3.5 times as likely to die of stroke, as those who ate it daily. That association held up even after accounting for other lifestyle habits and traditional risk factors.

And that study is no longer alone. Since then, multiple large analyses, including reviews pooling hundreds of thousands to millions of participants, have reached the same conclusion: habitually skipping breakfast is associated with higher rates of cardiovascular disease and earlier death. When many separate studies of different populations keep pointing in the same direction, the signal is worth taking seriously.

One honest caveat: these are observational studies, so they show association, not ironclad proof of cause and effect. People who skip breakfast may differ in other ways that matter. But there are good physiological reasons to think the meal itself plays a real role.

Why would skipping breakfast hurt your heart?

Because of what it does to your metabolism over the course of the day. Three mechanisms stand out.

First, skipping breakfast tends to lead to overeating later, and habitual overeating impairs how the body handles blood sugar. Eating breakfast, by contrast, has been shown to improve appetite regulation and steady blood sugar after the next meal, which appears to improve the body's overall insulin sensitivity.

Second, better insulin sensitivity leads to better cholesterol numbers. So the simple act of regularly eating breakfast can, on its own, help improve cholesterol control.

Third, skipping breakfast has been shown to affect the brain regions that regulate blood pressure, nudging readings higher, while eating breakfast is associated with lower blood pressure. Newer work also links chronic breakfast skipping to higher inflammation, another driver of heart disease.

Does it matter what you eat for breakfast?

Enormously. Eating breakfast is only half the equation, what you eat is the other half. A pastry and a sugary coffee drink is a very different metabolic event from a bowl of oatmeal with berries and nuts. The goal is to use that first meal to your advantage: fiber, whole grains, healthy fats, and protein that steady your blood sugar rather than spike it. Eating the right foods at breakfast can multiply the benefit of eating the meal at all, and it's one of the easiest daily opportunities to build health rather than erode it. If you want to go deeper, I've written about what makes a breakfast cholesterol-lowering, as well as why breakfast matters and how to optimize it.

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