Diseases Caused by Nutritional Deficiencies

Science: KS3, topic 1.4.10

Diseases Caused by Nutritional Deficiencies

The following diseases are caused by not getting enough of a certain food or nutrient:

Scurvy

Scurvy

  • Scurvy is caused by a vitamin C deficiency.
  • The body can't make enough collagen which can lead to bleeding and swollen gums, tiredness and muscle pain.
Vitamin D deficiency

Vitamin D deficiency

  • When children don't get enough vitamin D when they are growing, they can get rickets, where bones are malformed.
  • If adults don't get enough vitamin D, they can experience tiredness, and they can get severe bone pain called osteomalacia.
Anaemia

Anaemia

  • Anaemia is caused by a lack of iron in the diet or blood loss.
  • The body can't make enough haemoglobin and red blood cells, which leads to tiredness, pale skin and shortness of breath.
Kwashiorkor

Kwashiorkor

  • Kwashiorkor is caused by severe protein deficiency.
  • The body can't grow and repair its tissues, and the immune system becomes weak. It can also cause stunted growth and a swollen belly.

Test yourself on Diseases Caused by Nutritional Deficiencies

  • What is the main cause of anaemia?

  • Which deficiency would most likely cause bleeding gums, tiredness and muscle pain?

  • A child eats enough carbohydrates and fats but very little protein. Which deficiency disease are they most likely to develop?

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