For people who are sensitive to sodium, consuming excessive amounts can contribute to increased blood pressure.
When blood pressure remains elevated for long periods, the walls of arteries experience greater stress.
This can contribute to damage, stiffening, and other cardiovascular complications.
The American Heart Association recommends limiting sodium intake, particularly for people with high blood pressure.
Reducing packaged foods and preparing meals with less added salt can be useful steps.
2. Processed meats and foods high in saturated fat
The second category includes certain processed meats and foods that contain large amounts of saturated or trans fats.
Examples include:
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Bacon.
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Sausages.
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Hot dogs.
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Fatty processed meat products.
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Certain fast-food burgers.
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Deep-fried foods.
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Commercial pastries made with unhealthy fats.
Not every type of meat has the same nutritional profile.
Lean, minimally processed protein sources can be part of a balanced diet.
The greater concern is regularly consuming processed meats and foods high in saturated or trans fats.
Saturated fat can raise LDL cholesterol in many people.
LDL is commonly called bad cholesterol because elevated levels contribute to the accumulation of cholesterol-rich plaque inside arteries.
This process is known as atherosclerosis.
Over time, plaque can narrow arteries and make them more vulnerable to complications.
If a clot forms and blocks an artery supplying the brain, an ischemic stroke may occur.
Trans fats are particularly undesirable because they can increase LDL cholesterol and negatively affect cardiovascular health.
The World Stroke Organization recommends limiting foods high in saturated fats, trans fats, and excessive salt as part of stroke prevention.
World Stroke Organization+1
3. Sugary drinks and highly processed sweet foods
The third category is frequently overlooked.
Sugary beverages and heavily processed sweets can contribute to excessive calorie consumption.
Examples include:
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Sweetened soft drinks.
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Energy drinks containing added sugar.
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Sweetened bottled tea.
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Packaged cakes.
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Doughnuts.
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Cookies.
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Sweetened milk drinks.
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Desserts with large amounts of added sugar.
Regularly consuming large quantities of sugary drinks can contribute to weight gain and increase the risk of type 2 diabetes.
Both obesity and diabetes are associated with increased stroke risk.
High blood sugar over time can damage blood vessels and contribute to cardiovascular complications.
This does not mean that eating a dessert occasionally causes a stroke.
The concern is a long-term pattern in which sugary foods and beverages replace nutritious options.
Should these three categories be completely eliminated?
Not necessarily.
The most important factor is the overall eating pattern.
People can reduce excessive sodium, replace some processed meats with healthier protein sources, and choose water instead of sugary beverages more often.
These changes may help improve blood pressure, cholesterol, and metabolic health.
The American Heart Association's 2024 stroke prevention guideline recommends a Mediterranean-style dietary pattern, particularly one that includes vegetables, fruits, whole grains, nuts, and olive oil.
American Heart Association+1
Small, consistent changes are often more sustainable than strict diets that are difficult to maintain.
Chapter 3: How Unhealthy Eating Habits Can Gradually Damage Blood Vessels
The human circulatory system is designed to transport oxygen and nutrients throughout the body.
Healthy arteries have flexible walls that allow blood to flow efficiently.
However, several conditions can gradually change the structure and function of these vessels.
High blood pressure, elevated cholesterol, diabetes, smoking, and unhealthy dietary habits can contribute to this process.
One of the most important conditions is atherosclerosis.
What is atherosclerosis?
Atherosclerosis occurs when plaque accumulates inside artery walls.
Plaque consists of cholesterol, fatty substances, cellular waste, calcium, and other materials.
As plaque builds up, the arteries may become narrower and less flexible.
This can restrict blood flow to important organs, including the heart and brain.
The condition often develops slowly over many years.
A person may feel completely normal while plaque accumulates inside their arteries.
Problems can arise when a plaque becomes unstable and ruptures.
The body may respond by forming a blood clot at the damaged location.
If the clot blocks an artery supplying the brain, an ischemic stroke can occur.
Why does high blood pressure matter so much?
High blood pressure places excessive force on artery walls.
When this happens over many years, blood vessels can become damaged.
Hypertension can also contribute to the development and progression of atherosclerosis.
In some cases, it can weaken small blood vessels in the brain, increasing the risk of hemorrhagic stroke.
The CDC identifies high blood pressure as a leading risk factor for stroke.
CDC+1
One particularly concerning aspect is that hypertension often has no obvious symptoms.
Someone may continue working, exercising, and eating normally without realizing their blood pressure is elevated.
That is why regular blood pressure measurements are important.
The connection between cholesterol and stroke
Cholesterol is a substance the body needs to build cells and produce certain hormones.
However, having too much LDL cholesterol can contribute to plaque formation.
When LDL levels remain elevated, cholesterol can accumulate inside artery walls.
Over time, this may narrow blood vessels and increase the risk of cardiovascular events.