Trans Fats
Normal
Trans Fats
All fats are made up of carbon
chains with hydrogen atoms attached to them by covalent bonds.
Trans-Fats are one such fat, they are unsaturated fats with the structure
of atoms arranged such that the hydrogen atoms are on 2 different sides
of the carbon atoms, but their configuration is different from that
of the standard unsaturated fat. (see diagrams)
When we say a fat is “saturated” it means that the maximum
amount of hydrogen atoms that can be attached to each carbon has been
attached, in the case of most fats, this is 2.
Structure
Trans-Fats are different from standard fats in the fact that the positioning
of the hydrogen atoms are different, this gives rise to the two fats
having different chemical and physical properties.
To give an example of how the structure is changed, the “CIS”
(Latin for “on the same side of”) fatty acid has a bend
somewhere in the middle, whereas the Trans-Fats’ equivalent molecule
with the same chemical composition is straight. This changes the melting
point and makes it much more stable than standard fats.
Overview
Trans-Fats, were once said to be the replacement for saturated fat.
But it is now known that they provide no known health benefits and are
a leading cause of obesity in the world, they can cause cardiac disease,
obesity,
Trans-Fats are also found in naturally occurring animal fat, but the
Trans-Fats created by the process of hydrogenation has the “benefit”
of being Halal, that is, suitable for consumption by Islamic law, it
is also suitable for consumption by vegetarians.
What they do
Trans-Fats are stored as energy in the body, now this may seem like
a good thing, but the reality is that this “energy” is stored
as a layer in the arteries, can build up around the heart. This increases
the risk of cardiac problems. This is not the only problem, there is
also an increased risk of Type 2 diabetes due to the fact that insulin
is unable to cope with the increased blood sugar levels.
Advanced
Trans Fats
Hydrogenated vegetable oils are
often mistakenly labeled as Trans-fats, but this is not the case, Trans-Fats
are rather a byproduct of this process. However, some fats are intentionally
hydrogenated just so that Trans-Fats can be created. The hydrogenation
process involves the conversion of vegetable oils to either solid or
semi-solid fats.
Due to the atomic structure of Trans-fats, it is much more stable and
thus can last longer
Hydrogenation means to add hydrogen
to the substance; fats contain multiple bonds joining the molecules.
Most standard vegetable fats contain more than a single double bond,
but there are still a number of single bonds, a fat is considered “saturated”
when all the spaces for double bonds have been filled.
When a fat undergoes hydrogenation, it produces Trans fat as a side
effect, this fat is usually left in the product. Trans-fats are also
found in naturally occurring animal fat, but this has the “benefit”
of being Halal, that is, suitable for consumption by Islamic law, it
is also suitable for consumption by vegetarians.
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