Human nutrition

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Human Nutrition

Human nutrition (pronunciation: /ˈhjuːmən njuːˈtrɪʃən/) is the study of the provision of necessary nutrients in the human body to support life and health.

Etymology

The term "nutrition" comes from the Latin word nutrire, meaning "to feed" or "to nourish". The prefix "human" is added to specify the study's focus on human beings.

Definition

Human nutrition involves the intake and utilization of food substances by which growth, repair and maintenance of the body are accomplished. It includes ingestion, absorption, assimilation, biosynthesis, catabolism and excretion.

Related Terms

  • Macronutrients: These are nutrients that the body needs in large amounts. They include carbohydrates, proteins, and fats.
  • Micronutrients: These are nutrients that the body needs in smaller amounts. They include vitamins and minerals.
  • Dietary Reference Intake (DRI): This is a system of nutrition recommendations from the Institute of Medicine (IOM) of the U.S. National Academy of Sciences.
  • Food Pyramid: This is a visual guide to help people make healthy food choices.
  • Malnutrition: This is a condition that results from eating a diet in which one or more nutrients are either not enough or are too much.
  • Obesity: This is a medical condition in which excess body fat has accumulated to the extent that it may have a negative effect on health.
  • Eating Disorders: These are mental disorders defined by abnormal eating habits that negatively affect a person's physical or mental health.

See Also

External links

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