Vitamin C is mainly present in fruits like
kiwi, strawberries and citrus fruits, as well as in fresh vegetables such as
cauliflower, spinach and tomatoes. One of vitamin C’s characteristic is its
lability, that means that this vitamin is very unstable. The amount of vitamin
C can notably decrease in food as a consequence of storing or cooking it. The
root cause of this is its high water solubility. This is the reason why,
sometimes, our diet cannot provide all the vitamin C that our body needs.
Do I have to take vitamin C supplements?
Our body uses vitamin C to maintain and
repair cellular tissues. It is antioxidant and key in the formation of
collagen.
The daily supply of vitamin C that we need
depends on age and situation. If our diet doesn’t provide enough vitamin C,
there are some signs and symptom that can help us detect it:
In all these cases, supplementation with
vitamin C is possible. But, above all, it is important to find the most
suitable presentation. This is because great doses of vitamin C in a single
intake can lead to some undesirable effects, like a peak of vitamin C that our
body cannot absorb. Moreover, an excess of this vitamin can induce insomnia,
gastric irritation, a high blood and urine acidity, kidney and liver overload,
diarrhea or nausea.
How should I take vitamin C?
When taking vitamin C, we should always try
to keep adequate levels during the 24 hours of the day, aiming for the greatest
therapeutic benefit. Another important factor is how vitamin C is presented.
The most suitable are:
As a liposome, containing vitamin C
inside little and spherical cells. These have two functions: on one side, they
protect the vitamin and prevent its oxidation and, on the other side, under
this form they can trespass the intestine walls without needing transporters, achieving
better absorption. An important factor to take into account is that the body
receives vitamin C abruptly and the metabolization process takes 12 hours,
approximately.
Sustained-release form, in which vitamin C
is coated by a hydrophilic matrix that hydrates when in contact with
gastrointestinal fluids. When the coating agent hydrates, it creates a layer of
gel, where active principles are released. From there, they keep on releasing
little by little, at constant speed, not overloading intestinal receptors and
guaranteeing the adequate absorption of vitamin C for 12 hours.