Saturday, 28 September 2013

Fats

Duties of fat in a human body


  • They are structural part of cell. Phospolipids are an important component of a cell membrane.
  • Glycolipids, lipoproteins and steroids work as vitamins and hormones as well.
  • Fats are the most economical part of a human body after carbonhydrates.The amount of energy given by fat is (1 gr. 9,3 K cal.)  and it doubles the energy given by the same amount of carbonhydrates and protein.
  • A large amount of metabolic water appears when fats are used in oxygen based breathing in cells. Energy is gained when stored fat is burned in bodies of animals travelling in long desert roads, and those which sleep in winter, during that period these animals supply a part of their water need as metabolic water appears from the burned fat.
  • Fat beneath skin and around organs protect the living thing from cold and hits. Layer of fat beneath skin is really thick especially in whales, seals and other sea mammals.
  • It is the source of A, D, E, K vitamins dissolving in fat and helps them to be absorbed
  • It provides growth and normal metabolic events.
  • It helps the saturation feeling to occur
  • Essential fatty acids which cannot be synthesized in body can be taken by fats
  • It is effective in protection of flexibility of human skin.

In conclusion:
Fats as nutrition:

  • Saturated fats are butter, animal fats and tail fat , so they consist cholesterol.
  • Margarines ( trans fat) is acquired from vegetable liquid oil in nutrition industry. Solid margarines are solid because they are saturated  with hydrogen in producing process and are  in the saturated fatty acid group. They consist cholesterol if animal fat and milk is added.
  • People usually consuming  food with over saturated fatty acids may have cardiovascular diseases. In One of the diseases , arteriosclerosis, lipid accumulates in side of the blood vein . These accumulations prevent the blood to flood and decreases the flexibility of veins. In order to protect heart health, a little amount of saturated fat should be consumed.
  • Saturated fatty acids prevent cleaning of low volumed lipoprotein in blood. As a result, they cause occlusion in veins as they form accumulation in veins. It is known to increase LDL cholesterol level and tendency to diabetes.
  • Consuming fried food repeatedly rises risk of cancer as fried oil’s comical structure is destroyed. During cooking, it is known that multi unsaturated fatty acid is formed in fried oil.
  • %25-30 of energy needed per day should come from fat .It is impossible to live without consuming fat.
  • Calorie taken with saturated fatty acids ,although being the same with other fatty acids’ calorie, is the reason for gaining weight.
  • Although the effects of single unsaturated fatty acids on LDL cholesterol is neutral,  it has an effect on increasing high volumed lippoorotein. Single unsaturated fatty acids are known to play a role in healing cardiovascular diseases’ risk factors.
There are a lot of positive and negative effects of fatty acids found in fats on nutrition and health. Saturated fatty acids are the reason for especially cardiovascular diseases and gaining weight with fat. Unsaturated fatty acids usually have positive effects. But, whole nutrition diet should be taken into considerate and enough and balanced fat should be consumed, fatty acids should be below limits and rated to each other. As a result of eating food consisting high amount of trans fat, rising in LDL cholesterol and decrease in HDL cholesterol occur. This situation leads to cardiovascular diseases. Consuming Omega 3 and Omega 6 fatty acids has positive effects. But these two acids should be consumed proportionately. It is obvious that KLA is protective against cancer, positive effect in immunity system and cardiovascular diseases, and preventing weight gaining and obesity.

For a balanced diet, it is essential for the consumers to become conscious about fatty acids.

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