TRANS FATS – WHAT YOU SHOULD KNOW!
Trans Fats have become a hot topic of discussion in the USA and in the health industry, but general awareness in Australia seems quite low. This may be because legislation in Australia does not yet require Trans Fats to be identified on food labels, so we simply aren’t aware that we’re eating it.
What are Trans Fats?
Trans Fat is the common name for a type of unsaturated fat with trans- isomer fatty acid. Most Trans Fats in our diet come from chemically altered vegetable oils. These oils are made using a process called hydrogenation, and are appropriately called ‘hydrogenated vegetable oils’. Essentially, a bunch of chemicals (some of them petroleum based) are used to turn liquid vegetable oil into solid fat, and in the process, Trans Fats are produced.
So are Trans Fats Bad for me?
Doesn’t sound healthy, does it? Well it’s NOT. Trans Fats have been linked to high cholesterol, which can lead to health conditions such as coronary heart disease, heart attack and stroke. The main problem is that Trans Fats increase levels of ‘bad’ LDL Cholesterol, while simultaneously reducing levels of ‘good’ HDL Cholesterol in the body. While saturated fats (animal fats) also increase bad cholesterol, they don’t have the magnifying effect of reducing good cholesterol at the same time. Health authorities worldwide have concluded that Trans Fats are detrimental to health, and offer no positive benefits whatsoever. Therefore, there is no recommended daily upper limit for trans fats consumption, as any amount of consumption is believed to increase the risk of coronary heart disease.
Which Foods Contain Trans Fats?
Because labeling of Trans Fats is not yet compulsory in Australia, it can be difficult to tell exactly what you are eating. As a general rule, any product containing ‘hydrogenated’ or ‘partially hydrogenated’ vegetable oil is likely to contain Trans Fats. This includes a huge range of sweet and savoury snack foods (biscuits, chips, rice crackers), baked goods (cakes, muffins, donuts) and fried fast foods (hot chips, fried chicken, spring rolls, deep fried fish).
Why are Trans Fats used by manufacturers?
Trans Fats are used because they are cheap, add bulk to products, have a neutral flavour and give products a long shelf life. Restaurants started to use vegetable oils for frying after saturated animal fats were declared unhealthy, and hydrogenated vegetable oils were cheaper to use and had a longer life span.
Avoiding Trans Fats
Avoiding Trans Fats comes down to general healthy eating principles, and taking care when reading product labels. This means using taking care to ensure the only oils you consume, are as close as possible to their natural state, and are NOT hydrogenated!
· avoid products that list hydrogenated or partially hydrogenated oils or fats on the label
· avoid all fried fast foods
· avoid commercially baked goods such as doughnuts, pastries and biscuits
· contact the manufacturers of your favourite products if you have a concern about their ingredients
· bake or fry your own alternatives at home, using healthier, 100% natural oils such as olive oil
The Final Word
Remember – ALL oils and fats contain the same amount of kilojoules, and even the ‘healthier’ versions should only be used in very small amounts if you wish to lose or maintain your weight!