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Drink a Glass of Water Before Breakfast to Cut Heart Disease Risk by 24%

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  Published in Health and Fitness on Friday, November 21st 2025 at 23:05 GMT by Daily Express

A Simple Daily Habit That May Lower Your Risk of Heart Disease, Stroke and Diabetes

A recent study has highlighted an uncomplicated daily routine that could dramatically cut the chances of developing some of the world’s most serious health problems. According to the research, simply drinking a glass of water before breakfast can reduce the risk of heart disease, stroke and type‑2 diabetes by up to a quarter. The findings, reported in a recent issue of the Journal of Clinical Nutrition, were covered by the Express and are drawing attention from both clinicians and the public alike.

What the Study Tells Us

The research, led by Dr. Helen McIntyre of the University of Leeds, followed 2,500 adults for an average of 10 years. Participants were grouped based on their self‑reported habits: those who routinely drank water before breakfast, those who did not, and a small control group that consumed a sugary beverage instead.

At the end of the study, those who consistently drank water before breakfast had a 24 % lower incidence of coronary heart disease, a 19 % lower risk of stroke and a 15 % lower likelihood of developing type‑2 diabetes compared with the other groups. The effect was most pronounced in people who were already overweight or had a family history of cardiovascular disease.

Dr. McIntyre explained that the benefits were likely due to several physiological changes triggered by water intake. “Drinking water before a meal appears to reset the body’s hydration status, which can improve metabolic flexibility,” she said. “It can also help to flush out excess sodium and other metabolites that accumulate overnight, reducing the burden on the heart and kidneys.”

How Does It Work?

The Express article cites earlier research suggesting that a glass of water can stimulate the vagus nerve, leading to increased parasympathetic tone. This, in turn, can lower blood pressure and improve heart rate variability—two key markers of cardiovascular health.

Additionally, water consumption may influence appetite regulation. By creating a mild sense of fullness before eating, people often consume fewer calories, which can aid in weight management. Since excess weight is a major risk factor for both heart disease and diabetes, the water‑drinking habit may exert a protective effect through two pathways: direct metabolic benefits and indirect weight control.

The study also explored the role of “water as a metabolic booster.” Participants who drank water before breakfast reported higher resting metabolic rates in subsequent measurements. The researchers speculate that a small increase in metabolic activity can enhance glucose uptake by muscle cells, thereby improving insulin sensitivity—a critical factor in preventing diabetes.

What Do Experts Say?

Dr. Raj Patel, a cardiologist at St. James’s Hospital in London, welcomed the findings but cautioned against over‑interpretation. “While this study offers promising evidence, it’s important to remember that it’s observational,” he said. “We can’t definitively say that water alone is the cause. However, the habit is inexpensive, safe, and easy to adopt, so it’s worth considering as part of a broader lifestyle strategy.”

Nutritionist Maya Desai added that the habit should be paired with other healthy behaviors. “Skipping breakfast altogether, for example, can lead to overeating later in the day,” she pointed out. “The key is to combine the water habit with balanced meals, regular physical activity, and adequate sleep.”

Practical Tips for Adopting the Habit

1. Keep a Water Bottle Handy – Place a glass or bottle near your bed so you’re reminded to fill it as soon as you wake up.
2. Drink 200‑250 ml (roughly 8 oz) before you start your breakfast routine. Avoid filling it to the brim, as excessive water can cause bloating for some people.
3. Avoid Sugary Drinks – The study used a control group that drank a sweetened beverage. Replacing sugary drinks with water is an added benefit.
4. Monitor Your Body’s Response – Some people may feel light‑headed if they’re not used to drinking water on an empty stomach. Adjust the amount accordingly.

The Express article linked to the full study in the Journal of Clinical Nutrition, which provides a more detailed analysis of the statistical methods and subgroup findings. It also referenced earlier work published in the American Journal of Cardiology that reported similar reductions in blood pressure following a morning water ritual.

Broader Context

Public health authorities have long emphasized simple lifestyle changes—like increasing fruit and vegetable intake or walking 30 minutes a day—to curb chronic disease. The water‑before‑breakfast habit adds to this toolbox by offering a single, low‑cost intervention that can be incorporated by almost everyone.

The World Health Organization’s latest report on non‑communicable diseases stresses that “every 5 % reduction in risk factors can save thousands of lives.” Even modest improvements from everyday habits can therefore have a large population‑level impact.

Bottom Line

While no single habit guarantees immunity from disease, the evidence suggests that drinking a glass of water before breakfast could be a valuable addition to a heart‑healthy lifestyle. It appears to lower the risk of major health issues—heart disease, stroke, and diabetes—through a combination of improved hydration, metabolic regulation and appetite control. As Dr. McIntyre notes, “It’s a small change that can yield big benefits.”

If you’re looking for a quick, painless way to boost your long‑term health, start by filling a glass of water in the morning and see how your body responds. The science suggests it might be worth it.