We chew our food with our teeth. Chewing means breaking down the food into smaller pieces that are easier to digest. Chewing allows your body to extract the greatest possible amount of nutrients from the food you eat.

After absorption, the end products of digestion are used by animals for various purposes, the utilisation of absorbed food materials in the body is called assimilation. This food may be utilized to provide energy, for growth, development, repair, etc.

The ingestion of food is the process of intake of food by an organism and human beings ingest food through their mouth. The ingested food is processed by breaking the food into small pieces by the teeth which is then lubricated by the saliva so that it can be swallowed with the help of the tongue.

Faeces is referred to as the solid or semi-solid remains of food that were not digested in the small intestine and have been broken down by bacteria in the large intestine. The fate of faeces is to get released from the body via the anus of the large intestine. The colour, shape and texture of the faeces can reveal signs of infection, digestive issues or more serious health problems.

Kwashiorkor is a deficiency disease caused due to lack of protein intake in our body. Protein is a body-building nutrient and it helps in building, maintaining and repairing the body tissues. We can prevent the diseases of protein-energy malnutrition by eating protein-rich foods like pulses, peas, beans, meat, egg, milk, fish and so on. We can prevent malnutrition by maintaining a balanced diet.