Nutrition and Malnutrition
Nutrition: nourishment, or aliment, is the supply of materials - food - required by organisms and cells to stay alive. In science and human medicine, nutrition is the science or practice of consuming and utilizing foods. As mentioned in the definition, most living creatures need nutrients to survive. Often times, these are not naturally produced in the body, and must be taken from other sources. For example, many vitamins humans need to survive must be absorbed through eating plants and other animals, and certain minerals must be taken in through water.
Being healthy means eating a balanced diet, and getting the proper amount of nutrients your body needs to survive and prosper. This is why so much priority is placed on eating enough of each food group. This is why one cannot just eat one type of food, or live off of junk food, the former because one type cannot have all the nutrients required, and the latter simply because it lacks nutrients overall.
Often, undernutrition and malnutrition are used interchangeably, but they are not the same thing. Malnutrition is the overarching definition under which both over and undernutrition fall. Undernutrition, being the opposite of overnutrition, is when a person does not get enough of the nutrients that they need to survive. This is most common in poorer countries, where many families cannot afford to have healthy foods.
Many deaths are attributed to malnutrition, whether it be from having too many nutrients or from having too little. Both main types can be fatal, or can lead to things that are. This is why it is as important as ever to encourage people who can eat well to do so, while also assisting those who cannot.