Food nutrition and health

• Protein

  • is a macro nutrient
  • formed from chains of amino acids
• Protein specific functions in body

  • growth
  • repair
  • maintenance
  • Secondary energy source
• Protein Sources

  • Animal sources - meat, fish, eggs, cheese
  • Plant sources - Soya, nuts, seeds
• Biological value - amount of essential amino acids present
• Protein Animal sources contain all essential amino acids required by the body
• Quorn has a HBV
• Proteins from plant sources are LBV and lack some essential amino acids
• Calcium functions

  • strengthens bones and teeth with vitamin D
  • Bones able to reach peak bones mass
  • clots blood after injury
• Calcium sources

  • Milk and dairy foods
  • green leafy vegetables
  • sota products
• Calcium deficiency

  • bones become weak
  • during pregnancy womens bones and teeth weaken
• Iron functions

  • supports the production of haemoglobin in red blood cells
• Iron sources

  • Red-meat liver
  • Lentils, dried apricot, chocolate
  • leafy vegetables
• Iron deficiency

  • anaemia symptoms are tiredness
• Fluoride functions

  • strengthen enamel layer of teeth
• Fluoride sources

  • saltwater fish
  • some water companies put fluoride in water supply
• Fluoride deficiency

  • teeth may develop cavities
  • leading to a possible filling
• Iodine function

  • regulates hormones in thyroid which controls metabolic rate
• Iodine sources

  • seafood
  • food grown in iodine rich foods
• Iodine deficiency

  • poor functioning of thyroid resulting in tiredness
• Sodium function

  • regulates water in the body
  • assists body for use of energy
  • controls muscles and nerves
• Sodium sources

  • processed foods
  • salt added to food for flavour
• Sodium excess and deficiency

  • deficiency causes muscle cramps
  • Excess leads to high blood pressure and heart disease
• Water Functions

  • for normal brain function
  • decrease risk of kidney problems
  • normal blood pressure
  • help bowel movements
  • regulate temperatures and maintain hydration
• Water sources

  • drinking water
  • milk
  • tea
  • coffee
  • Fruit juices
• People with increased water needs

  • active lifestyle during hot weather
  • anyone suffering vomiting and diohrea to stop dehydration
  • breat feeding mothers for milk production