
| WHO Information Series on School Health - Document 4 - Healthy Nutrition: An Essential Element of a Health-Promoting School (FAO - WHO, 1998, 61 p.) |
|
Condition |
Characteristics |
Effects on Schoolchildren |
|
Undernutrition |
not enough total food energy and nutrients are consumed |
low body weight, wasting of body fat and later of muscle |
|
Protein-energy malnutrition (PEM) |
inadequate dietary intake of protein and/or energy |
failure to grow and thrive, less resistance and high susceptibility to infections |
|
Wasting |
low weight for height |
see above |
|
Stunting |
low height for age |
see above |
|
Marasmus |
dietary deficiency of both protein and energy |
see above, (more severe) |
|
Kwashiorkor |
dietary deficiency of protein with adequate (or even excessive) energy intake |
see above, (more severe) |
|
Iron Deficiency |
body is depleted of iron stores (reduced red blood cell count), hampering the bodys ability to produce haemoglobin, which is needed to carry oxygen in the blood, most common in females |
increased fatigue, shortened attention span, decreased physical and intellectual work capacity, reduced resistance to infections, impaired intellectual performance |
|
Vitamin A Deficiency |
body is low or depleted of vitamin A, which is vital for vision |
night blindness and eventually total blindness, reduced resistance to infection (mainly preschool age) |
|
Iodine Deficiency |
body is low or depleted of iodine which is vital for cell differentiation and thyroid hormone synthesis |
can effect brain development, learning disabilities and, when severe, grossly impair mental development; impaired reproductive performance |
|
Overnutrition (Overweight/Obesity) |
more food energy is consumed than expended, resulting in excess of body fat |
elevated blood cholesterol and high blood pressure, associated with increased adult mortality |
|
Eating Disorders |
severe disturbances in eating behaviour, resulting in extreme thinness or overweight |
lower self-esteem, feeling of inadequacy, anxiety, social dysfunction, depression, moodiness |
|
Anorexia Nervosa |
intense fear of becoming obese and refusal to eat, leading to a significant weight loss |
see above |
|
Bulimia |
compulsion to binge eat and then purge the body by self-induced vomiting or use of laxatives |
see above |