Antioxidant Support
Free radicals are a natural consequence of oxidation – that
vital process that allows our body to function normally. Free
radicals actually play an important role in a number of
biological processes, some of which are necessary for life,
such as intracellular killing of bacteria by neutrophil
granulocytes. They have also been implicated in certain cell
signaling processes. The two most important oxygen-centered
free radicals are superoxide and hydroxyl radical. They are
derived from molecular oxygen under reducing conditions, such
as when a person breathes.
However, because of their high reactivity, free radicals
often participate in unwanted side reactions resulting in cell
damage. Many forms of cancer are thought to be the result of
reactions between free radicals and DNA, resulting in mutations
that can adversely affect the cell cycle and potentially lead
to malignancy. Scientists have also pointed to free radicals as
the cause of some of the symptoms of aging, such as
atherosclerosis, alcohol-induced liver damage, alpha
1-antitrypsin in the lung, and even emphysema.
Now, don’t get this wrong. Free radicals are still necessary
for life, but in order to prevent yourself from developing
these diseases, you need to take action in keeping free
radicals at a minimum. Fortunately for us, the body has a
number of mechanisms to minimize free radical induced damage
and to repair the damage which does occur. Enzymes superoxide
dismutase, catalase, glutathione peroxidase, and glutathione
reductase, these are only a few of the substances found in the
body that can help repair cell damage.
But that’s only as far as repair is concerned. What about
controlling free radicals in the form of prevention? Now, this
is where antioxidant support comes in. Antioxidant support
plays a key role in the defense mechanisms of the body. The
most common antioxidant supports are in the form of vitamins,
specifically vitamin A, vitamin C, and vitamin E. In addition,
there is good evidence that bilirubin and uric acid can act as
antioxidant support to help neutralize certain free
radicals.
Antioxidant support can be found in almost everything that
we eat. More particularly, fresh fruits and vegetables are the
richest sources of antioxidant support available. For instance,
the antioxidant support Retinol or Vitamin A (or beta-carotene)
are found in dark green, yellow, and orange vegetables and
fruits. In fact, it is the antioxidant support found in these
fruits that protect them from solar radiation damage. Another
antioxidant support, ascorbic acid or Vitamin C is a water
soluble compound that is found in citrus fruits, green peppers,
broccoli, green leafy vegetables, strawberries, raw cabbage,
and tomatoes.
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