fats

• The funcions of fats are

  • Protect vital organs
  • provide the body with insulin, keeping us warm
  • act as an energy source
  • Provides fat soluble vitamins A, D, E, K
  • Provides body with essential amino acids
  • make body cells
• Fats can be visible on foods with a fatty layer like lamb, pork or butter on bread
• Invisible fats cant be seen as theyve been made withing the food like chips and cookies
• some animal sources of fat are butter, meat and fish
• some plant sources of fat are vegetable oils, avocadoes and nuts
• A triglyceride is the chemical name for a fat
• a triglyceride is made up of 3 fatty acids and a glycerol
• saturaturated fats have single bonds between all their carbon atoms

  
• Saturated fats are solid at room temperature and are found in animal products such as meat, dairy products and butter
• Saturated fats are usually high in cholesorol
• The average man should have 30g of saturated fats while the average woman should have 20g
• Unsaturated fats have double bonds in their carbon chain

  
• Unsaturated fats are liquid at room temperature and sources of them are sunflower and oil, nuts and seeds and oily fish
• There are 2 types of unsaturated fats, Monounsaturated and polyunsaturated fatty acids
• Monounsaturated fatty acids have 1 double bond and sources of them are avocados, cashews and peanuts
• polyunsaturated fatty acids have 2 or more double bonds and sources of them are corn, soya and sunflour oil
• Omega 3 and 6 are effential fatty acids which are polyunsaturated.
• Omega 3 is found in oily fish, seeds and leafy greens
• omega 6 is found in vegetables, grains, seeds and chicken
• Cholesterol is a fatty substance which is needed for bodily functions as it helps with digestion of fats
• Cholestorol is carried by lipoproteins, LDL and HDL
• Low density lipoproteins (LDL) is bad cholestorol, needed in low amounts
• High density lipoproteins (HDL) is good cholestorol, needed in high amounts
• Fats should be no more than 35% of your foods energy, 11% being saturated fats
• excess in fat can lead to weight gain and type 2 diabetes being developed
• A defficiency in fat can rewsult in weight loss and mineral deficiencies like omega 3 and A D E K vitamins