nutrition
Definition
Nutrition is the science of how our bodies use food for energy, growth, and repair. It is the study of nutrients, which are substances in food that our bodies need to function properly.
The six main nutrients are carbohydrates, protein, fat, vitamins, minerals, and water. Carbohydrates are our body's main source of energy. They are found in foods like bread, pasta, rice, and fruits. Protein is needed for building and repairing tissues. It is found in foods like meat, fish, poultry, eggs, and beans. Fat is needed for storing energy and protecting our organs. It is found in foods like butter, oil, nuts, and seeds. Vitamins and minerals are needed for many different functions in our bodies. They are found in fruits, vegetables, and whole grains. Water is essential for life. It helps our body to regulate its temperature, transport nutrients, and remove waste.
Eating a balanced diet is important for good health. A balanced diet includes foods from all six food groups. The Dietary Guidelines for Americans recommend that we eat a variety of foods from all food groups to get the nutrients we need.
There are many different ways to eat a healthy diet. Some people choose to follow a specific diet, such as a vegan diet or a gluten-free diet. Others choose to follow a more general healthy eating plan. There is no one right way to eat healthily, as long as you are getting the nutrients you need.
How can the word be used?
Nutrition is essential for good health and well-being.
Different forms of the word
Noun: The process of providing or obtaining the food and other substances that are necessary for growth, health, and good functioning.
Adjective: Relating to nutrition.
Verb: To provide or obtain nutrition.
Etymology
The word "nutrition" comes from the Latin word "nutritio," which means "nourishment." The Latin word "nutritio" is also the source of the French word "nutrition" and the Spanish word "nutrición.".
The word "nutrition" was first used in English in the 16th century. It was used to refer to the process of providing or obtaining the food and other substances that are necessary for growth, health, and good functioning.
Question
What is nutrition?
AQA Science Exam Question and Answer
Question:
Explain the importance of balanced nutrition for maintaining good health.
Answer:
Balanced nutrition is crucial for maintaining optimal health and well-being as it provides the body with the necessary nutrients it needs to function properly.
Firstly, a balanced diet ensures that the body receives essential nutrients such as carbohydrates, proteins, fats, vitamins, and minerals. Carbohydrates provide energy, proteins support tissue repair and growth, fats are essential for hormone production and organ protection, and vitamins and minerals are involved in various biochemical processes.
Secondly, balanced nutrition helps in maintaining a healthy body weight. Consuming the right amount of calories based on individual needs prevents excessive weight gain or loss, reducing the risk of obesity-related health problems such as diabetes, heart disease, and joint issues.
Thirdly, adequate nutrition supports the immune system. Nutrients like vitamin C, zinc, and antioxidants boost the body's defence mechanisms against infections and diseases.
Furthermore, a balanced diet contributes to mental health. Omega-3 fatty acids, for example, found in fish, have been linked to improved cognitive function and reduced risk of depression.