human nutrition

• what is a balanced diet ?

  A balanced diet is the right amount of carbohydrates , fats , proteins , vitamins , minerals , water and fibre to maintain good health .
• what is obesity ?

  eating too much of a particular component of food
• what is the simple unit for carbohydrates ?

  glucose
• what is the simple unit for proteins ?

  amino acids
• what is the simple unit for fats ?

  fatty acids , glycerol
• two types of vitamins for foods are

  vitamin C and vitamin D
• two types of minerals

  calcium and irons
• where can we find carbohydrates ?

  In cereals , potatoes , tapioca , fruits , vegetables , dried peas and beans.
• where can we find proteins ?

  In meat , fish , eggs , milk , beans and nuts .
• where can we find fats ?

  In meat , lard , butter , egg yolks , oils in nuts and seeds .
• where can we find vitamin C ?

  fruits ( lemons ) and green vegetables .
• where can we find vitamin D ?

  In sunlight , fish liver , oil , butter , cheese , egg .
• where can we find calcium ?

  In milk , cheese , peas , beans and vegetables .
• where can we find iron ?

  In liver , kidney , meat , fish , egg , peas and beans .
• what are the functions of carbohydrates ?

  • give us energy
  • form part of the nucleus of the cells as well as other body components
• what are the functions of proteins ?

  • growth of new cells
  • repair worn out tissues
  • gives energy
  • make enzymes and hormones
• what are the functions of fats ?

  • give us energy
  • form part of the cell membrane
  • help absorb certain vitamins
• what are the functions of vitamin C ?

  • healthy skin
  • healthy gums
• what are the functions of vitamin D ?

  • healthy growth of bones and teeth
• what are the functions of calcium ?

  • formation of strong bones and teeth
  • necessary for clotting of blood
• what are the functions of iron ?

  • production of hemoglobin in red blood cells.
• what is hemoglobin ?

  Hemoglobin is the protein contained in red blood cells that is responsible for delivery of oxygen to the tissues .
• what is Islets of langerhans is part of ?

  diabetes