What are the 10 importance of nutrition in Human Body




What is Nutrition

Quality nutrition refers to a condition in which the food consumed provides the recommended levels of essential nutrients, allowing the body to effectively perform its physiological functions. This state of nutrition depends on age, physiological state, level of physical activity and gender. The importance of good nutrition covers the entire life cycle, starting with pre-conception, conception, pregnancy, infancy, childhood, adolescence and adulthood. Good nutrition promotes human health, increases productivity and improves the quality of life.

In essence, good nutrition includes:

  • - Consumption of suitable products.
  • - The right meal time.
  • - Ensuring the right proportions (both in quality and quantity) for a balanced diet.
  • - Cooking in the right way and in the right conditions.

The importance of good nutrition is emphasized by various benefits:

  • - Promoting physical and cognitive development.
  • - Support optimal breast milk production, allowing mothers to breastfeed their babies effectively.
  • - Strengthening and improving the body's immune system, reducing susceptibility to diseases.
  • - Reduction of costs for the management and control of diseases.
  • - Increase overall productivity.

In contrast, people with poor nutrition are at increased risk:

  • - A growth and development disorder affecting both the body and the brain, especially in young people.
  • - Increased susceptibility to frequent diseases, infections and long recovery periods.
  • - Reduced ability to study effectively or do well in educational institutions.
  • - Reduction of the possibility of effective work and earning a living.
  • - Increased risk of death.




What are 10 Important of Nutrition 

 Nutrition is essential to maintain good health and well-being. Here are 10 key points about the importance of nutrition :

  • General Health: Adequate nutrition is crucial to maintain overall health. It provides the necessary nutrients that the body needs to function properly, including carbohydrates, proteins, fats, vitamins and minerals.
  • Disease Prevention:Proper nutrition can help prevent various health conditions and diseases. A balanced diet rich in fruits, vegetables, whole grains and lean proteins can help reduce the risk of chronic diseases such as heart disease, diabetes and certain cancers.
  • Energy and Endurance: Nutrition provides the necessary energy for daily activities and physical endurance. Carbohydrates are especially important because they are the main source of energy for the body.
  • Optimal Growth and Development: In children and adolescents, adequate nutrition is crucial for growth and development. Nutrients such as calcium, vitamin D and protein are essential for building strong bones and muscles.
  • Weight Management: A balanced diet plays a key role in maintaining a healthy weight. Proper nutrition regulates appetite, supports metabolism and reduces the risk of obesity.
  • Immune System Support:Certain nutrients, such as vitamins C and E, zinc and selenium, are important for a healthy immune system. A well-nourished body is better equipped to fight infections and diseases.
  • Mental Health: Nutrition also plays a role in mental well-being. Nutrient-rich foods can have a positive impact on mood and cognitive function, while deficiencies in certain nutrients can contribute to mental health disorders.
  • Digestive Health: Adequate fiber consumption is crucial for digestive health. Fiber helps prevent constipation, supports a healthy intestinal microbiota and can reduce the risk of certain gastrointestinal diseases.
  • Heart Health:A diet low in saturated and trans fats, cholesterol and sodium, combined with a high consumption of fruits, vegetables and whole grains, supports cardiovascular health. This can help reduce the risk of heart disease and hypertension.
  • Recovery and Healing::Proper nutrition is essential for recovery after illness, surgery or injury. Nutrients such as proteins, vitamins and minerals play a crucial role in the healing process and the reconstruction of tissues.
  • In summary, maintaining a balanced and nutritious diet is fundamental to promote overall health, prevent diseases and support the various functions of the body.

What are The main nutrients of human nutrition

The nutrients present in food are essential substances that nourish the body. They are essential to maintain general health and physiological functions such as the supply of energy, the development of body mass, the regulation of temperature, the strengthening of the immune system and the coordination of the different bodily functions necessary for life.

The main nutrients of human nutrition can be classified into three main categories: macronutrients, micronutrients and water.

  •  Macronutrients:These are necessary nutrients in relatively large quantities and include carbohydrates, proteins and fats/oils.
  • Carbohydrates:Serving as the main source of energy in most diets, carbohydrates include starches, fiber and sugars. Although foods such as sugar, jam, cakes and sugary drinks are sources of carbohydrates, their consumption should be limited due to the lack of other nutrients and an increased risk of being overweight.
  • Carbohydrate Needs: Individual carbohydrate needs vary depending on factors such as age, gender, level of physical activity and physiological state. The recommended daily intake of carbohydrates should be about 45% to 65% of the total energy/calorie needs, usually between 2000 and 3000 kilocalories (kcal). Each gram of carbohydrates provides 4 kilocalories.
  • Proteins:Acting as body-building foods, proteins play a crucial role in the growth, development, maintenance and repair of tissues, the production of metabolic and digestive enzymes, as well as the formation of hormones, cells and tissues.
  • -Protein Requirements:The recommended daily intake of protein is approximately 1 gram per kilogram of body weight. For example, a person weighing 60 kilograms would need 60 grams of protein per day, which is equivalent to an egg or a piece of meat about the size of an egg. However, children, adolescents, pregnant and lactating women have higher protein needs :


  1. - Children:* 30-50 g (half a palm of meat)
  2. - Teenagers:* 60-75 g (a palm of meat)
  3. - Adults:* 60-70 g (a palm of meat)
  4. - Pregnant and lactating women:* 90 g (one and a half palm of meat)

It is important to note that an additional amount of protein is needed in case of illness, convalescence and after surgery to meet the additional demands of the body for tissue replacement and repair.


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