
What is it?
Trans fat is actually an artificial, man made fat. It was created about a 100 years ago specifically for to raise the profits of the food manufacturing companies.
It is made by superheating healthy oils to temperatures of 270 degree Celsius. And then in the present of a nickel catalyst, hydrogen is passed thru the heated oil to create a semi-hard tasteless, highly stable fat that could:
a. Replace the more expensive butter and other healthier fats in processed foods
b. Increase the shelf-life of processed food so that there’ll be lesser spoilage and hence, higher profits for the food companies.
How do you spot them?
That's easy - take a trip to the nearest 7Eleven - you can bet that almost every snack item there contains Trans Fat. Check your food labels. Any items that contain hydrogenated or partially hydrogenated oils have trans fats in them. They are also contained in margarines and shortenings used in the manufacture of foods like, cookies, breads, cakes, instant noodles, non dairy creamer, 3-in-1 beverages, TV dinners, in fast foods…the list goes on really.
In a test done, it was discovered that one piece of KFC fried chicken contains 7g of trans fat!
Why is it a health hazard?
Unlike natural fats (monounsaturated, polyunsaturated and saturated fats), our bodies do not know how to process trans fats. As a result the fat gets deposited in our liver, fat cells and arteries. There is now evidence that trans fats are major contributors to increasing obesity, heart disease and even diabetes.
There’re studies showing evidence that high intake of trans fat increases the risk of breast cancer in women, by ^40%! (^Cancer Epidemiology, Biomarkers & Prevention September 1997 Issue)
It’s been shown to increase LDL or our ‘bad’ cholesterol and DECREASE the HDL or the ‘good’ cholesterol, in our blood. That’s like having a hammer fall on your head, followed by a huge piano!
The sad thing is that we in Singapore are still pretty ignorant about this fat. Our hawker centers boast of ‘The Healthier Choice’ yet our hawkers are using vegetable (partially hydrogenated) cooking oils. You will be better off consuming lard instead; the actual healthier choice. And we continue to gobble our cookies, french fries and afternoon coffee flavoured buns without a care in the world for our health.
Oh ya; actually we cannot really be blamed for it. How can we when even doctors are still advising us to eat margarine instead of butter (if you have to take butter at all). And we continue to trust the ‘Healthy Heart Pyramid’ found on the packaging of some ‘health’ foods.
Regarding trans fats – we should insist on ‘Zero tolerance’ really. And only then will the food companies comply.
*McDonald’s fries (171g) in Denmark for example contain only 1.0% trans fat as compared to 28% in South Africa. Why? Denmark has very strict laws pertaining to trans fats. (*source: New England Journal of Medicine Vol 354; Apr 2006)