Macro-nutrients are essential nutrients required by plants in relatively large quantities for their growth and development. They are called macro-nutrients because plants need them in larger amounts compared to micro-nutrients to support their basic metabolic functions.
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The term “macronutrients” comes from the Greek, “macro,” meaning large, and “nutrients,” referring to substances that provide nourishment.
Macronutrients are essential nutrients that are required by the body in relatively large amounts to support various functions. The three primary macronutrients are carbohydrates, proteins, and fats. These nutrients provide energy to our bodyfunctions and activities. Such as:
1. Carbohydrates: Carbohydrates are the body’s primary source of energy. They are broken down into glucose, which is used by cells for energy. Foods rich in carbohydrates include grains (such as rice, bread, and pasta), fruits, vegetables, and legumes.
2. Proteins: Proteins are essential for building and repairing tissues, as well as for various metabolic processes in the body. They are made up of amino acids, some of which are termed essential because the body cannot produce them. Proteins must be obtained from the diet. Good sources of protein include meat, poultry, fish, eggs, dairy products, legumes, nuts, and seeds.
3. Fats: Fats are source of energy and are necessary for absorbing certain vitamins, insulating the body, and providing essential fatty acids. They are also involved in cell membrane structure and other functions. Common sources of healthy fats include avocados, nuts, seeds, olive oil, and fatty fish.
These nutrients are called macronutrients because they are required by the body in relatively large quantities compared to micronutrients, such as vitamins and minerals, which are needed in smaller amounts.