Dante Carrillo
Poor diet is a leading global risk factor for cardiovascular disease (CVD), causing nearly 8 million deaths per year. Unhealthy diets, high in saturated and trans fats, salt, refined grains, and sugar, can lead to a build-up of cholesterol in the arteries, increasing the risk of heart attack, stroke, and other major health issues. Conversely, a diet rich in fruits, vegetables, whole grains, lean protein, and healthy fats can substantially reduce the risk of CVD. Therefore, adopting healthier dietary patterns is crucial for preventing cardiovascular disease and improving overall health.
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What You'll Learn
High intake of saturated and trans fats
A poor diet is a leading global risk factor for cardiovascular disease, with nearly 8 million deaths attributed to it annually. One aspect of a poor diet is the high intake of saturated and trans fats, which can have detrimental effects on cardiovascular health.
Saturated fats are a type of dietary fat that is solid at room temperature and found in animal-based foods such as butter, cheese, red meat, and some plant sources like coconut and palm oils. These fats can raise LDL cholesterol levels in the blood, which is a major risk factor for heart disease. When there is too much LDL cholesterol in the blood, it can lead to cholesterol buildup in the arteries, known as atherosclerosis, or the hardening of the arteries. This narrowing of the arteries supplying blood to the heart increases the risk of heart attack and stroke.
Trans fats are formed when vegetable oils are hydrogenated and hardened, creating margarines, deep-frying oils, and shortenings used in baked goods. They are also found naturally in some meats, butter, and dairy products. Trans fats are particularly harmful as they not only raise LDL cholesterol but also lower HDL ("good") cholesterol. This double impact on cholesterol levels significantly increases the risk of cardiovascular disease.
The American Heart Association recommends limiting saturated fats to less than 6% of total calories. For a 2,000-calorie diet, this equates to about 200 calories or 22 grams of saturated fat per day. It is important to read food labels to monitor saturated fat intake and choose foods with lower amounts. Lean meats, poultry without skin, fish, nuts, beans, legumes, and plant-based proteins are recommended to reduce saturated fat intake.
In addition to the direct impact on cholesterol levels, a high intake of saturated and trans fats can contribute to weight gain. Many high-fat foods, such as pizza, baked goods, and fried foods, are calorie-dense and can lead to excess calorie consumption if consumed in large quantities. This can result in weight gain over time, which is a risk factor for cardiovascular disease. Therefore, it is important to balance calorie intake with physical activity to maintain a healthy weight and reduce the risk of cardiovascular disease.
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Low intake of fruits and vegetables
Unhealthy diets are a leading global risk to health, particularly cardiovascular disease (CVD). Nearly 8 million deaths a year are attributable to poor dietary habits. A diet high in saturated and trans fats causes cholesterol to build up in the arteries, which can lead to a heart attack, stroke, and other major health problems.
Fruits and vegetables are part of a heart-healthy diet. They are good sources of fiber, vitamins, and minerals, and most are low in fat, calories, sodium, and cholesterol. Eating whole fruits and vegetables provides more fiber than drinking juice. Consuming fruits and vegetables at least three times a day is associated with a 27% lower stroke incidence and a 24% lower ischemic heart disease mortality rate.
A low intake of fruits and vegetables can increase the risk of cardiovascular disease. A diet high in fruits and vegetables has been shown to reduce the risk of coronary heart disease in many epidemiological studies. The extent of the association is uncertain, but the protective effect of fruits and vegetables is thought to be due to their high content of fiber, vitamins, and minerals.
It is recommended to eat five or more servings of fruits and vegetables per day. This can include apples, pears, citrus fruits, green leafy vegetables, salads, cruciferous vegetables, and green-yellow vegetables. These foods provide essential nutrients that support heart health and reduce the risk of cardiovascular disease.
In addition to increasing fruit and vegetable intake, maintaining a healthy body weight is important. Portion sizes have increased over time, and consuming too many calories can lead to obesity, which is a risk factor for cardiovascular disease. Balancing calorie intake with physical activity can help maintain a healthy weight and lower the risk of cardiovascular disease.
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High intake of salt and sugar
Excessive salt and sugar consumption is linked to cardiovascular disease through various mechanisms. Firstly, a diet high in salt contributes to fluid retention, bloating, and water retention, which can lead to puffiness and bloating after a salty meal. More importantly, high salt intake is a significant risk factor for high blood pressure or hypertension, which increases the chances of heart failure and other types of heart disease. Hypertension is known as the "silent killer" due to its subtle symptoms, and it affects a large proportion of adults worldwide.
The recommended daily sodium intake is no more than 2,300 milligrams (about one teaspoon of salt), with an ideal limit of no more than 1,500 milligrams for most adults. However, the average American diet often contains twice the recommended amount of sodium. Reducing salt and sodium intake can help lower blood pressure and mitigate the associated risks of heart disease, heart attack, stroke, and kidney disease.
On the other hand, high sugar intake is associated with a greater risk of dying from heart disease. A 15-year study found that individuals who derived 17% to 21% of their calories from added sugar had a 38% higher risk of cardiovascular disease-related death compared to those consuming only 8% of their calories as added sugar. Added sugar is prevalent in soft drinks, fruit drinks, flavoured yogurts, cereals, baked goods, processed foods, and even unexpected sources like soups, bread, cured meats, and ketchup.
The excessive consumption of sugar can lead to several issues that indirectly increase the risk of heart disease. Firstly, sugar can overload the liver, leading to the accumulation of fat and potentially resulting in fatty liver disease, which is a contributor to diabetes. Additionally, high sugar intake increases "bad" LDL cholesterol and decreases "good" HDL cholesterol, causing artery-clogging plaque that damages blood vessels and the heart. Sugar-rich diets also contribute to weight gain by interfering with the body's appetite control system, as liquid calories from sugary beverages are less satisfying than those from solid foods.
To maintain a healthy body weight and reduce the risk of cardiovascular disease, it is crucial to balance calorie intake with physical activity. While sugar is not a required nutrient, it is advisable to limit the consumption of foods high in calories and low in nutrition, such as soft drinks and candy. A high intake of fruits, vegetables, and whole grains is associated with a reduced risk of chronic diseases, including diabetes, heart disease, and certain types of cancer.
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Low intake of whole grains
Unhealthy diets are a leading global risk to health, particularly cardiovascular disease (CVD). Nearly 8 million deaths annually are attributable to poor dietary habits, and unhealthy diets are associated with increased lipid levels and atherosclerotic cardiovascular disease (ASCVD). Ischemic heart disease and stroke are the two major causes of disability in individuals above the age of 50.
Whole grains are a great source of fiber, vitamins, minerals, and complex carbohydrates. Eating whole grains is associated with a lower risk of coronary heart disease (CHD). The germ in whole grains is nourishment for the seed and contains antioxidants, vitamin E, and some B vitamins. The endosperm provides carbohydrates, protein, and energy.
Several previous prospective studies have found a lower risk of coronary heart disease, stroke, and cardiovascular disease associated with a high intake of whole grains, though not all studies reported a clear association. Higher consumption of most individual whole grain foods was associated with a significantly lower risk of CHD.
The Mediterranean diet and the DASH diet are good for heart health and include whole grains. Whole-grain foods include whole-wheat bread, cereal, crackers, pasta, and brown rice.
Cardiovascular diseases take approximately 18 million lives each year, making this group of disorders the leading cause of death worldwide. The most crucial behavioural risk factors are smoking, physical inactivity, and unhealthy diets. The effect of behavioural risk factors can lead to hypertension, diabetes, dyslipidaemia, and obesity.
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High intake of refined grains
Poor dietary habits are a leading global risk factor for cardiovascular disease (CVD). Unhealthy diets, along with other factors like smoking, physical inactivity, and high body-mass-index, contribute to nearly 8 million deaths annually. Diets high in saturated and trans fats, for example, can cause cholesterol to build up in arteries, increasing the risk of heart attack and stroke.
On the other hand, eating too many grains, especially refined grains, can lead to weight gain. Weight gain can, in turn, increase the risk of CVD. Additionally, refined grains are often found in processed foods, cakes, biscuits, and deep-fried takeaway meals, which are typically high in unhealthy fats and sugars. These foods can contribute to the overall unhealthiness of a diet, which may increase the risk of CVD.
To maintain a heart-healthy diet, it is recommended to choose whole-grain foods, such as whole-wheat bread, cereal, crackers, pasta, or brown rice, for at least half of your daily grain intake. Whole grains provide fiber, vitamins, minerals, and complex carbohydrates, which are beneficial for overall health and can help reduce the risk of CVD.
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Frequently asked questions
Poor diet is a leading global risk factor for cardiovascular disease (CVD). Unhealthy diets can lead to weight gain and are associated with increased lipid levels, high blood pressure, high cholesterol, and atherosclerotic cardiovascular disease (ASCVD).
Foods that are high in saturated and trans fats, such as butter, cheese, whole milk, ice cream, fatty meats, and processed foods, can increase the risk of cardiovascular disease by causing cholesterol buildup in the arteries.
A heart-healthy diet includes fruits, vegetables, whole grains, lean protein sources like fish and seafood, legumes, nuts, and seeds. These foods provide essential nutrients and can help lower cholesterol and blood pressure.
