Understanding Good and Bad Fats

Bad Fats

Saturated fats

  • Saturated fats raise total blood cholesterol as well as the bad LDL cholesterol.
  • Main contributors to heart disease.
  • Promote obesity due to the excess calories they provide that are more readily stored as fat.
  • Mainly found in animal products such as meat, dairy, eggs and seafood.
  • Some plant foods are also high in saturated fats such as coconut oil and palm oil.
  • Not all saturated fats are alike, and some are beneficial to our health.
  • Some margarines contain saturated fats, and these margarines are mostly made from vegetable oils.

Trans fats

  • Trans fat is the worst kind of fat
  • Trans fats are the result of hydrogenation, a process that occurs when hydrogen is added to a vegetable oil for the purposes of maintaining shelf life.
  • Trans fatty acids are found in many commercially prepared foods to enhance their longevity.
  • They can raise total and bad LDL cholesterol levels while also lowering good HDL cholesterol levels.
  • Found in processed foods such as non dairy cream, microwaved popcorn, cookies, cakes, fries and donuts.
  • Any item that contains “hydrogenated oil” or “partially hydrogenated oil” likely contains trans fats.
  • As from January 2006, all food manufacturers are required to list trans fat content on food labels.

Good Fats

Monounsaturated fatsolive oil

  • Lower total cholesterol and bad LDL cholesterol and increase the good HDL cholesterol.
  • Found in olive oil, nuts, sesame seeds, peanut oil, canola oil and avocados.
  • Liquid at room temperature but begin to solidify at cold temperatures.

Polyunsaturated fats

  • Polyunsaturated fats also lower total cholesterol and LDL cholesterol.
  • Found in seafood like salmon, corn, soy, safflower and sunflower oils.
  • Omega-3 fatty acids are critical for our health.
  • Good sources of omega-3 fatty acids are cold-water fish, flax seed, soy, and walnuts.

Summary of good fats

  • Good fats are an efficient energy source.
  • They are a good source of protective nutrients for the brain and muscular system.
  • An insulation source for the body, as they form a protective barrier against climate conditions and harmful substances.
  • They serve as padding to protect vital organs.
  • They are required for normal cell, tissue, gland, and organ function.
  • They can come only from fats, hence fat-free diets cannot supply them.

Problems that can occur due to lack of good fats

  • Dry skin
  • Constipation
  • Low energy levels
  • Brittle hair and hair loss
  • Poor nail growth
  • Liver and kidney deterioation.
  • Behavioral changes.
  • Glands dry up
  • Immune system deterioration.
  • Digestion problems, inflammation, bloating, allergies, autoimmune conditions
  • Bone mineral loss
  • Reproductive failure: sterility in males and miscarriage in females
  • Vision and learning problems
  • Insulin resistance
  • Increased risk of overweight
  • Increased cancer risk
  • Increased cardiovascular risk
  • Decreased tissue oxidation

Fats and cooking

The smoke point of various fats is important because it is believed that fats that have gone past their smoke points contain a large quantity of free radicals which contribute to risk of cancer. The supplied table gives the smoke points of some fats.

Fat

Smoke Point °F

Smoke Point °C

Unrefined canola oil 225°F 107°C
Refined canola oil 400°F 204°C
Extra virgin olive oil 320°F 160°C
Virgin olive oil 420°F 216°C
Unrefined sunflower oil 225°F 107°C
Refined sunflower oil 450°F 232°C
Unrefined corn oil 320°F 160°C
Refined corn oil 450°F 232°C
Unrefined flaxseed oil 225°F 107°C
Unrefined peanut oil 320°F 160°C
Unrefined soy oil 320°F 160°C
Refined soy oil 450°F 232°C
Unrefined walnut oil 320°F 160°C
Hemp seed oil 330°F 165°C
Butter 350°F 177°C
Ghee (Indian Clarified Butter) 485°F 252°C
Coconut oil 350°F 177°C
Unrefined sesame oil 350°F 177°C
Sesame oil 410°F 210°C
Lard 370°F 182°C
Macadamia nut oil 390°F 199°C
Cottonseed oil 420°F 216°C
Grapeseed oil 420°F 216°C
Almond oil 420°F 216°C
Hazelnut oil 430°F 221°C
Peanut oil 440°F 227°C
Refined peanut oil 450°F 232°C
Soybean oil 495°F 257°C
Avocado oil 520°F 271°C
 
Elements4Health
The information within this website is intended as reference material only and not as medical or professional advice.
Your use of this website indicates your agreement to these terms.