Importance of diet

• Malnourished


  • A person not getting a balanced diet
  • Not eating the right nutrients in the right proportions
  • Can cause obesity or deficiency diseases
• Obesity


  • Being very overweight
  • Can lead to eg type 2 diabetes which means that the body stops regulating sugar in the blood
• Deficiency

  • When you don't have enough of something
• Lack of Iron


  Anaemia
• Anaemia


  • A condition when your red blood cells don't have enough iron
  • They need iron to carry oxygen (haemoglobin)
  • Breakfast cereals have a lot of iron to help prevent this problem
• Healthy diet 


  • Contains the right amount of healthy foods to give you enough energy
• Carbohydrates


  • Made of simple sugars such as glucose
  • Provide energy
  • The body breaks them up to gain glucose and oxygen to release energy through respiration
• Fats


  • Made from glycerol and fatty acids
  • Acts as energy store when the carbohydrates run out
  • Good insulator
  • Surrounds important organs and helps them keep at a constant temperature
• Proteins


  • Made from amino acids
  • 20 different amino acids
  • Proteins we eat are separated into amino acids by our body. It them builds them up as new amino acids/proteins
  • Used to replace damaged cells and make up new ones that allow us to grow
• Energy measurement


  Kilojoules