Jeffrey Salazar
A balanced diet is one that gives your body the nutrients it needs to function correctly. There are seven essential nutrients that the body cannot make in sufficient quantities. These include vitamins, minerals, protein, carbohydrates, fats, fibre, and water. Each of these nutrients supports vital bodily functions, including growth, the immune system, and the central nervous system. A healthy, balanced diet will usually include foods from the following groups: fruits, vegetables, dairy, grains, and protein.
| Characteristics | Values |
|---|---|
| Nutrients | Vitamins, Minerals, Carbohydrates, Fats, Water, Protein |
| Vitamins | Vitamin A, Vitamin C, Vitamin D, Vitamin E, B Vitamins |
| Minerals | Sodium, Iron, Potassium, Calcium, Magnesium, Zinc, Phosphorus |
| Carbohydrates | Simple, Complex |
| Fats | Unsaturated Fats, Omega-3 fatty acids, Trans Fats, Saturated Fats |
| Water | 6-8 glasses per day |
| Protein | 10-30% of daily calories |
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What You'll Learn
Vitamins and minerals
Vitamins fall into two categories: fat-soluble and water-soluble. The body can store fat-soluble vitamins, which include vitamin A, D, E, and K, for future use. In contrast, water-soluble vitamins, such as vitamin C and B-complex vitamins (vitamin B6, B12, niacin, riboflavin, and folate), cannot be stored by the body and need to be consumed daily.
Minerals like calcium, iron, and potassium are essential for building strong bones and teeth, turning food into energy, and supporting overall health. For example, calcium helps regulate heartbeats and ensures normal blood clotting for healing. Iron is crucial for making red blood cells to carry oxygen throughout the body, and potassium maintains fluid balance and supports heart health.
A well-rounded diet that includes a variety of whole-grain products, fresh fruits and vegetables, dairy products, nuts, seeds, eggs, and meats typically provides the necessary vitamins and minerals. For vegetarians, it is important to include plant-based sources of vitamins and minerals, such as vegetable pizzas or fajitas, sandwiches with lean cuts of meat, fresh salads, and baked potatoes.
While supplements are available, it is generally recommended to obtain vitamins and minerals from a balanced diet whenever possible.
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Carbohydrates
Fiber and starches are complex carbohydrates, while sugars are simple carbohydrates. Complex carbohydrates take longer to digest and don't cause a rapid spike in blood sugar, making them a better option for people with diabetes. Healthy, whole grains such as whole wheat bread, rye, barley, and quinoa are better options than highly refined white bread or French fries. The amount of carbohydrates in the diet is less important than the type of carbohydrate.
To add healthy carbohydrates to your diet, consider starting your day with whole grains like steel-cut oats or a cold cereal that lists a whole grain as the first ingredient and is low in sugar. Using whole-grain bread for lunch or snacks is another way to incorporate healthy carbohydrates. You can also look beyond the bread aisle and try whole grains like brown rice or quinoa in a salad.
It's important to note that some people cut down on carbohydrates to promote weight loss or for medical conditions like epilepsy. However, these restrictions can be challenging to maintain over time, and it's always best to consult a healthcare provider before making significant changes to your diet.
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Proteins
A balanced diet is one that includes all the nutrients our body needs to function correctly. One of the most important nutrients is protein. Protein is an essential building block of a healthy diet and is responsible for several crucial functions in our body. It is made up of long chains of amino acids, which are the building blocks of cells.
Protein-rich foods play an integral role in forming muscles, creating new enzymes and hormones, and are essential for growth and development. They also help repair and build cells and tissues, and play an important role in body processes such as blood clotting, fluid balance, and the immune response.
Protein can be obtained from both plant and animal sources. Animal sources of protein, such as meat, eggs, and milk, as well as soy and quinoa, are called complete proteins. This means they contain all the essential amino acids required by the body. On the other hand, most plant-based proteins are incomplete, meaning they do not contain all the essential amino acids. However, this can be addressed by consuming a variety of plant-based proteins throughout the day. Examples of plant-based proteins include tofu, tempeh, beans, nuts, and legumes.
It is important to note that while protein is essential, excessive consumption can lead to an overall dietary imbalance. A well-rounded diet should include a balance of protein, carbohydrates, and fats. Additionally, physical activity should accompany a high-protein diet to prevent weight gain from excess calories.
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Fats
There are saturated fats, unsaturated fats (including monounsaturated and polyunsaturated fats), and trans fats. Unsaturated fats should make up the majority of fat in the diet and can have beneficial effects on health when replacing saturated and trans fats. Monounsaturated fats (MUFAs) are liquid at room temperature and include olive, canola, peanut, safflower, and sesame oils. Avocados, nuts, and seeds are also good sources of MUFAs. This type of fat can help to reduce harmful cholesterol in the blood and contributes to vitamin E, which has an antioxidant effect and helps reduce inflammation. Polyunsaturated fats include omega-3 fatty acids, which have been shown to fight depression, reduce the amount of fat in the liver, lower blood triglycerides, and help prevent asthma.
Saturated fats have been linked to increased levels of cholesterol and inflammation, which can lead to heart disease, diabetes, and other chronic diseases. The American Heart Association recommends limiting the intake of saturated and trans fats to no more than 5% of daily caloric intake. Trans fats do not bring any health benefits and have been found to raise cholesterol levels, directly linked to inflammation, which can lead to heart disease, diabetes, and other chronic diseases.
Overall, it is important to consume a balance of fats, with a higher ratio of HDL cholesterol to LDL cholesterol. MUFA and PUFA fats contribute to this favorable ratio, while saturated and trans fats negatively impact it.
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Water
Drinking enough water throughout the day is essential to maintain hydration and prevent dehydration, which can cause constipation, headaches, fatigue, and other symptoms. The amount of water needed varies depending on factors such as sex, weight, age, activity level, and medical conditions. The Dietary Reference Intake for water is between 91 and 125 fluid ounces (2.7 to 3.7 liters) per day for adults. However, this includes water from both food and beverages. Water is the best drink for hydration, but other liquids such as milk, coffee, tea, soup, and juice also contribute to fluid intake. Eating water-rich fruits and vegetables can also help meet daily water needs.
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