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Nutritional deficiency and nutritional excess both play a role in disease. Nutritional deficiency occurs when the body does not get enough of a particular nutrient. Nutritional excess occurs when the body gets too much of a particular nutrient.

Nutritional deficiency can lead to a wide range of health problems, including:

• Stunted growth and development: Children who suffer from nutritional deficiencies may not grow and develop properly.
• Weakened immune system: Nutritional deficiencies can weaken the immune system, making people more susceptible to infections.
• Increased risk of chronic diseases: Nutritional deficiencies can increase the risk of developing chronic diseases, such as heart disease, stroke, and cancer.

Nutritional excess can also lead to a number of health problems, including:

• Obesity: Obesity is a major risk factor for many chronic diseases, including heart disease, stroke, and diabetes.
• High blood pressure: Nutritional excess can lead to high blood pressure, which is another risk factor for heart disease and stroke.
• High cholesterol: Nutritional excess can lead to high cholesterol levels, which can increase the risk of heart disease and stroke.

It is important to eat a healthy diet that provides the body with all of the essential nutrients it needs in the proper amounts. A healthy diet includes a variety of fruits, vegetables, whole grains, lean protein, and low-fat dairy products. It is also important to limit processed foods, sugary drinks, and unhealthy fats.

Here are some tips for eating a healthy diet:

• Eat plenty of fruits and vegetables. Aim to eat at least five servings of fruits and vegetables per day.
• Choose whole grains over refined grains. Whole grains are a good source of fiber and other nutrients.
• Choose lean protein sources, such as fish, chicken, and beans.
• Limit processed foods, sugary drinks, and unhealthy fats. Processed foods are often high in unhealthy fats, sugar, and salt. Sugary drinks are a major source of added sugar in the diet. Unhealthy fats, such as saturated and trans fats, can raise cholesterol levels and increase the risk of heart disease.

If you are concerned about your nutrition, talk to your doctor or a registered dietitian. They can help you to create a healthy eating plan that meets your individual needs.