Nutrients are molecules in food that all organisms need to make energy, grow, develop, and reproduce. Nutrients are digested and then broken down into basic parts to be used by the organism. There are two main types of nutrients, macronutrients and micronutrients. The three main categories of macronutrients include carbohydrate, protein, and fat. The two types of micronutrients are vitamins and minerals, and these are extra molecules that cells need to make energy. Let's take a look at the three groups of macronutrients we mentioned.

Types of Nutrients

In general, there are two types of nutrients:

• Macronutrients
• Micronutrients

Above nutrients could be obtained from the environment. Macronutrients provide energy to a living being for the function of the metabolic system. They provide massive energy has it is converted used to obtain energy.  Macronutrients include fats, proteins, and carbohydrates.

Micronutrient provides essential components for metabolism to be carried out. They also build and repair damaged tissues in order to control the body process. Micronutrients include calcium, iron, vitamins, iron, minerals and vitamin C.

Important Nutrients in Food

There are several nutrients that cannot be synthesized by the body and have to be taken externally through food. These are vital for the proper functioning of the body. The important nutrients and their functions include are mentioned below:

Carbohydrates

It is one of the main sources of energy for human beings. It comprises of three types of carbohydrates and they include fibre, sugar, and starch. They are usually low calories and thus help in maintaining a healthy diet.

Calcium

It is a mineral that is vital for building strong bones and teeth. In very fewer quantities it is also needed to our nerves, muscles work and heart. Sources of calcium include pudding, milk, yoghurt, tofu, canned fish, and fresh leafy green vegetables. Lack of calcium leads to a disease called Osteoporosis.

Cholesterol

It is essential for the brain, nerves, and development of cells. It plays an important role in the forming of enzymes and hormones. Foods include cheese, milk, chicken, beef, and fish.

Fats

It is one of the most important sources of calories. One gram of fat consists of 9 calories. It is almost twice of calories that we get from carbohydrates and proteins.  Fat is usually found in foods that we use in cooking, as spreads on bread and it also found in snacks, pastries.

Iron

It is a constituent of our red blood cells. Its function is to carry oxygen from our lungs to organs, muscles, and cells. Food sources include spinach, soybeans and other leafy vegetables.

Protein

They are made of amino acids. We can obtain protein in foods such as nuts, lentils, beef, rice, chicken, beef etc.

Sodium

Foods like milk and fresh vegetables contain sodium. Lack of sodium might lead to high blood pressure.

Functions of Nutrients

The important functions of nutrients include:

• They are the main source of energy for the body.
• They help in building and repairing body tissues.
• Increases the absorption of fat-soluble vitamins.
• Helps in the synthesis of collagen.
• Provides proper structure to the blood vessels, bones and ligaments.
• They also help in maintaining the homeostasis of the body.

Differences Between Vitamins, Minerals & Proteins

Food contains nutrients that are made from proteins, carbohydrates, fats, vitamins, minerals, antioxidants, fiber, water and other substances. A deficiency of any one of these nutrients can increase your risk of diseases, disorders and other medical conditions. A balanced diet of foods and nutrients may enhance your health and prevent disease. Consult your doctor or nutritionist to determine your nutritional needs and plan a diet and supplement program that is right for you.