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Ingestion: The process of taking food into the body is called ingestion.

Digestion: the process in which the foodcontaining large, insolublemolecules is broken downinto small, water soluble molecules is called digestion

Absorption: Theprocess in which the digested food passes through the intestinal wallinto blood stream is called absorption.

Assimilation: The processin which the absorbed food is taken in by the body cells and used for energy, growth and repair is called assimilation

Egestion: The process in which the undigested food is removed from the body is called egestion.

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Nutrition in Human Beings

Nutrition is the process by which organisms take in and use food for growth, repair, and maintenance of the body. In human beings, nutrition plays a vital role in maintaining overall health and well-being. In this guide, we will discuss the different aspects of nutrition in human beings.

Types of Nutrients

There are six major types of nutrients that are essential for human beings:

1. Carbohydrates - provide energy to the body
2. Proteins - essential for growth and repair of tissues
3. Fats - provide energy and insulation to the body
4. Vitamins - support various bodily functions
5. Minerals - help maintain bodily functions such as building strong bones
6. Water - essential for maintaining bodily functions

The Role of Digestion

The process of digestion is essential for breaking down food into its nutrient components, which can then be absorbed by the body. The digestive system consists of different organs such as the mouth, esophagus, stomach, small intestine, and large intestine. Each organ has a specific role to play in the digestion and absorption of nutrients.

Importance of a Balanced Diet

A balanced diet is crucial for maintaining good health. It should consist of a variety of foods from each food group, such as fruits, vegetables, whole grains, lean protein, and healthy fats. Eating a balanced diet ensures that the body receives all the necessary nutrients it needs to function correctly.

The Dangers of Malnutrition

Malnutrition occurs when the body does not receive adequate amounts of essential nutrients. It can lead to various health problems such as stunted growth, weakened immune system, and even death. Malnutrition can be caused by a lack of food, poor quality food, or an inability to absorb nutrients properly.

Conclusion

In conclusion, proper nutrition is essential for maintaining a healthy body. It is important to consume a balanced diet consisting of carbohydrates, proteins, fats, vitamins, minerals, and water. The process of digestion is critical for breaking down food into its nutrient components, which can then be absorbed by the body. Malnutrition can lead to severe health problems and should be avoided at all costs.