Thursday, March 21, 2013

THE OILS WE USE



For decades, dieticians, doctors and public health authorities told us to avoid saturated fats such as butter or lard in favor of unsaturated vegetable oils like safflower and soya bean.  Avoid animal fats such as butter and lard, and also some plant oils, such as coconut oil and palm oil, as they are high in saturated fat.  Healthy oils, such as olive, canola and peanut oil usually have a higher ratio of unsaturated fat.
Heating oil at high temperature will change its chemical structure and form harmful trans fats.  Healthy oils can also contribute to weight gain and harm health when overuse.  Information on some of the popular and trendy oils:

  1. Olive oil
·         The best known healthy oil
·         Associated with potentially protective effects that guard against many cardiovascular risk factors such as diabetes, high blood pressure, high cholesterol and obesity
·         Refined olive oil
·         Virgin olive oil
o   Can trigger cell cancer death
·         Extra virgin olive oil
o   Stroke prevention in older people
o   Protecting liver from oxidative stress
o   Best used as dressing and drizzle
·         Daily consumption of about 2 tablespoon olive oil may have beneficial effect on blood cholesterol levels
  1. Coconut oil
·         Have been in limelight for its alleged health giving properties
·         Stable at very high temperatures
·         Suitable for frying and baking
·         Virgin coconut oil
o   High in saturated fat (77%) but it’s mainly lauric acid that is quickly metabolized by the liver
o   Can reduce risk of heart disease, cancer and other ageing related conditions
o   Boost the immune system
o   Helps weight loss
o   Improves digestion and absorption of nutrients from food
  1. Rapeseed oil
·         Has high nutritional value
·         Comes from the seeds of a plant known as ‘rape’ (Latin for turnip)
·         Won’t go toxic at high heat
  1. Flaxseed oil
·         Traditionally use for arthritis
·         Can reduce risk of osteoporosis in post-menopausal women and women with diabetes
  1. Avocado oil
·         Rich in antioxidants and vitamin E
·         Help lower blood cholesterol
·         Have a role in prevention type 2 diabetes
·         Can be used for high temperature cooking
  1. Rice bran oil
·         Extracted from the germ and inner husk of rice
·         Rich in antioxidants and vitamin E
·         Appears to improve cholesterol profile
·         May reduce heart disease risk
·         Blend with sesame oil for cooking saw a significant  dropped in blood pressure and improved cholesterol levels
·         Help treat hot flushes and other symptoms experienced by menopausal women
  1. Chia oil
·         Chia seeds: the superfood originated in Mexico and South America
·         Healthy source of plant-based oils, arthritis sufferers looking to improve joints function and mobility, and to enhance heart health

Fat facts:
  • Saturated fat
    • Bad fat
    • Increase level of bad cholesterol (LDL)in blood that causes blockages in blood vessels, which in turn increases the risk of heart diseases
    • Associate with raising blood cholesterol, increases risk of heart disease, stroke and some cancers
    • Found in
      • Fats from animal sources
      • Plant oils such as coconut oil and palm oil
  • Trans fat
    • Bad fat
    • Product of hydrogenation process (adding hydrogen to vegetable oil)
    • Carries the same health concern as saturated fat
  • Polyunsaturated fat
    • Good fat
    • Decreases bad cholesterol level in blood
    • Help prevent heart disease
    • Found in
      • Sunflower oil
      • Safflower oil
  • Monounsaturated fat
    • Good fat
    • Decreases bad cholesterol and increases goo cholesterol levels in blood
    • Help prevent heart diseases
    • Found in
      • Olive oil
      • Canola oil

Shared from:
Greasy does it: The truths and myths about the oils we use
By Jeanette Wang & Gabriella Clarke
THEEDGE FINACIALDAILY, Monday 4 March 2013

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