1. Instant Noodles and Spicy Foods
Instant noodles are high in carbohydrates, monosodium glutamate, calories, and saturated fats but lack essential vitamins and minerals, making them a nutritionally poor choice. The seasoning packets often contain high levels of sodium and spicy ingredients like chili, which are not ideal for individuals with high blood pressure. Instant noodles typically contain 15-20% fat, mostly in the form of saturated fats that are hard to digest. Additionally, the trans fats present can raise bad cholesterol levels, increasing the risk of heart disease, stroke, arteriosclerosis, and hypertension. Instant noodles can also contribute to uncontrolled weight gain as they are deep-fried and dehydrated, making them high in fats. This can put extra strain on the heart and blood vessels, worsening hypertension. Spicy foods, including sauces, chili pastes, and dishes with strong flavors, should be avoided by those with high blood pressure, as they can lead to digestive issues and increase blood pressure, potentially causing a higher risk of cerebral hemorrhage, especially for older individuals.


2. Pickled Vegetables
Pickled vegetables are a form of fermentation. During fermentation, beneficial bacteria break down the difficult-to-digest cellulose and certain natural sugars in fruits and vegetables. These good bacteria help prevent spoilage and promote the growth of beneficial microbes in your gut. To preserve any food through pickling, the salt content must be at least 5%. Consuming excessive pickled vegetables means ingesting large amounts of sodium, which can raise the risk of high blood pressure and other health issues. Pickled vegetables are considered unsuitable for individuals with hypertension because they contain little fat and calories but are high in sodium due to the large amount of salt used during the pickling process. A single serving of pickled vegetables can provide up to 570 mg of sodium, exceeding the daily recommended intake. Those suffering from high blood pressure should avoid pickled vegetables, as consuming them with other salty foods and alcohol can lead to blood vessel blockages and increase the risk of strokes.


3. Foods high in energy
You can determine the total energy of a particular food by burning it and measuring the heat released. Foods that are lower in calories per gram, such as vegetables, fruits, low-fat soups, high-fiber foods, and lean proteins, generally have relatively low energy density. In contrast, foods high in fat and low in water content, such as pastries, chocolate, cookies, snacks, fried foods, or oils, have relatively high energy density. Foods like glucose, cane sugar, chocolate, and fast food increase the risk of obesity, which in turn raises the likelihood of high blood pressure. Individuals with hypertension should avoid deep-fried foods, such as donuts and fried meats, as they can contribute to fat buildup in the blood and increase the risk of cardiovascular diseases and high blood pressure. Chicken should also be limited, as excessive consumption can elevate cholesterol levels, further worsening hypertension.


4. Eggs
Eggs are a highly nutritious food. They contain proteins, fats, vitamins, minerals, enzymes, and hormones in a balanced and proportionate way. The nutritional composition of eggs is well-balanced, with the yolk being the most important part, as it contains most of the nutrients. Chicken egg yolks have 13.6% protein, 29.8% fat, and 1.6% minerals. Eggs are commonly consumed and highly nutritious, making them suitable for both children and adults. For babies between 5-6 months old, it is recommended to eat eggs 3 times a week, with half an egg yolk each time in porridge or mashed form. For children over 7 months, they can eat one whole egg or duck egg, or 4 quail eggs at a time. Adults can consume eggs 3-4 times a week. Those with high blood pressure or high cholesterol can still eat eggs because of their beneficial nutrients, but people with high blood pressure and cholesterol should limit their intake to only 2 eggs per week.


5. Foods high in sugar
According to nutrition experts, sugary drinks add extra energy to your daily intake, and although they can provide a refreshing and satisfying taste, they often lead to overeating, particularly fried or grilled foods. This excess energy can accumulate as fat, disturb metabolism, and increase the risk of non-communicable diseases such as obesity, hypertension, and diabetes. A severe consequence is cardiovascular disease, the leading cause of death worldwide, accounting for 33% of all annual deaths. According to the WHO, an average daily diet contains 2,000 kcal, with 10% of the total kcal coming from free sugars, equivalent to 50 grams of sugar or 12.5 teaspoons of sugar. The average Vietnamese currently consumes about 46.5 grams of free sugar daily, nearly reaching the maximum recommended limit of 50 grams and nearly double the WHO-recommended intake. Diet is one factor people can change to improve health. For those with high blood pressure, alongside medication, adopting a scientific and balanced diet is essential for effective treatment.


6. Processed Meats
While it's hard to deny the convenience of processed meats like cold cuts and bacon, these foods are often packed with sodium due to the preservation process, which involves heavy salting and seasoning. These meats are not recommended for those with high blood pressure. Processed meats contain hundreds of milligrams of sodium, a primary contributor to hypertension. Many people mistakenly believe only fatty foods are harmful, but the high sodium content in processed meats makes them particularly risky. A single 60-gram serving of certain processed meats can contain over 500 milligrams of sodium. Foods like these, which are heavily seasoned and preserved with salt, contribute to the development of high blood pressure, making them unsuitable for those already suffering from hypertension.


7. Pre-packaged Foods – Frozen Pizza
In general, individuals with high blood pressure should avoid consuming excessive amounts of packaged and fast foods. Pizza, in particular, is a highly risky choice for those monitoring their sodium intake. The combination of cheese, salted meats, tomato sauce, and crust increases the salt content significantly. Frozen pizzas are especially dangerous for people with hypertension, as manufacturers often add large amounts of salt to preserve flavor. A single serving of frozen cheese or meat and cheese pizza can contain over 700 milligrams of sodium, if not more. The thicker the crust, the more cheese it holds, and thus the higher the sodium content becomes. Pre-packaged foods like these are also high in saturated fats, trans fats, and sugar, all of which contribute to elevated blood pressure, making them foods to be avoided for those with hypertension.


8. Organ Meats
According to the World Health Organization (WHO), over 1 billion people globally suffer from high blood pressure, and this number continues to rise, with an increasing number of younger individuals affected. Each year, approximately 9.4 million deaths worldwide are attributed to hypertension. In Vietnam alone, around 12 million people have high blood pressure, meaning 1 in 5 adults is affected, with nearly 60% of them undiagnosed and over 80% untreated. Experts emphasize that hypertension is a silent, progressive disease that can cause numerous complications, affecting health, work productivity, and leading to significant economic burdens for individuals and society. Therefore, individuals with high blood pressure need to actively limit foods harmful to their health. Organ meats, including the heart, liver, kidneys, intestines, and brain, are commonly consumed in some regions, especially in Vietnam, where they are often prepared in stir-fries, stews, and grilled dishes. However, for those with high blood pressure, these foods should be avoided due to their high cholesterol content, which can raise blood pressure. Moreover, these foods can produce substances that lead to unstable blood pressure. Additionally, organ meats from untrusted sources may pose risks such as cancer, brain diseases, parasites, and heart or lung infections.


9. Chicken Skin or Processed Meat Products
Limiting the consumption of chicken-based dishes can help reduce the strain caused by the cholesterol found in chicken meat, preventing blood pressure from spiraling out of control. However, chicken is a common dish in many Vietnamese households, making it difficult to completely eliminate from the diet. If you crave chicken but are avoiding it, you can still indulge, but refrain from eating the chicken skin. While the skin contains beneficial nutrients, it also harbors unhealthy cholesterol, which can destabilize blood pressure after consumption. Instead, opt for healthier cooking methods such as boiling or steaming rather than frying or grilling. Those with high blood pressure, especially those who are also obese or pre-diabetic, should reduce calorie intake by avoiding foods that are excessively energy-dense. Foods that lead to weight gain and increased body fat can elevate cholesterol levels, contributing to artery plaque buildup, which can result in atherosclerosis. Excess weight also raises blood pressure, and the more weight gained, the higher the blood pressure becomes. Therefore, it's essential to regulate your eating habits and maintain a healthy weight. Limit processed foods as much as possible to support better health.


10. Alcohol
High blood pressure is a major risk factor for stroke, which carries a high rate of mortality and disability. In addition, it causes several complications such as aortic dissection, eye problems, kidney failure, and heart attacks. Therefore, controlling blood pressure is a crucial goal for individuals with hypertension. To manage blood pressure, patients must strictly follow their doctor’s prescribed medication regimen, adopt a healthy lifestyle, exercise regularly, and avoid alcohol and tobacco. Drinking alcohol is one of the leading triggers for hypertension and its related complications such as stroke, heart attack, arrhythmia, gout, and elevated triglyceride levels. Alcohol causes the heart to beat faster and constricts blood vessels, leading to a rapid increase in blood pressure. Calcium salts and cholesterol can accumulate on blood vessel walls, causing atherosclerosis, and in severe cases, stroke. People who are addicted to alcohol are more likely to develop hypertension and arteriosclerosis than those who do not drink. Therefore, it's essential to quit drinking alcohol to maintain stable health.


11. Strong Tea
Some scientific studies have shown that tea contains compounds known as catechins, which are effective in lowering blood pressure. These include epigallocatechin (EGC), epicatechin (EC), epigallocatechin-3-gallate (EGCG), and epicatechin gallate (ECG). All of these are powerful antioxidants that help eliminate harmful free radicals from the body. With the help of these compounds, cellular damage is repaired, and inflammation is reduced. However, experts recommend that people with high blood pressure should avoid drinking strong tea, as it contains high levels of alkali that can stimulate the brain, potentially causing insomnia, increased heart rate, or arrhythmia, and raising blood pressure. Instead of strong tea, it is better to drink green tea, which not only helps detoxify the body but also contains antioxidants that support stable blood pressure and overall health.


12. Salt
Salt is composed of about 40% sodium and 60% chloride. Sodium is a vital mineral for muscle and nerve function, and along with chloride, it helps the body maintain proper water and mineral balance. Salt is commonly used to add flavor to food and preserve it, making it an essential ingredient in daily life. For some individuals, the more salt they add to their food, the more flavorful and satisfying it seems. However, excessive salt consumption can lead to negative health effects. In particular, consuming too much salt is a major risk factor for high blood pressure and cardiovascular diseases. People who regularly eat salty foods are at a higher risk of developing high blood pressure. Therefore, individuals with high blood pressure should limit their salt intake and opt for fresh vegetables, especially boiled dishes, to maintain a healthier diet.


