What are the steps of nutrition?Explain each of them.
There are 5 steps of nutrition. They are: INGESTION, DIGESTION, ASSIMILATION, ABSORPTION AND EGESTION.
Ingestion: It is the process by which the food is taken into the body of an organism. They have special organs for this purpose.
Digestion: The process of converting solid and complex food into simple ans soluble form is known as digestion.
Absorption: It is the process by which digested nutrients are absorbed from the intestine and transported to different parts of the body the circulatory system. It takes place through finger like projections called villi present in the walls of small intestine.
Assimilation: It is the process of utilising absorbed food materials foe energy, growth and devolopment.
Egestion: It is the process of removing undigested food materials from the body in the form of faeces.
Nutritionis the selection offoodsandpreparation of foods, and their ingestion to beassimilatedby the body. By practicing ahealthy diet, many of the known health issues can be avoided.Thedietof an organism is what it eats, which is largely determined by the perceivedpalatabilityof foods.
Dietitiansarehealth professionalswho specialize inhuman nutrition, meal planning, economics, and preparation. They are trained to provide safe, evidence-based dietary advice and management to individuals (in health and disease), as well as to institutions. Clinicalnutritionistsare health professionals who focus more specifically on the role of nutrition in chronic disease, including possible prevention or remediation by addressing nutritional deficiencies before resorting to drugs. Government regulation of the use of this professional title is less universal than for "dietician."
A poor diet may have an injurious impact on health, causing deficiency diseases such asscurvyandkwashiorkor;health-threatening conditions likeobesityandmetabolic syndrome;and such common chronic systemic diseases ascardiovascular disease,diabetes,andosteoporosis.