VITAMINS AND MINERALS
Wide spectrum multivitamins
Our multivitamin/mineral formulas contain a high dose of essential nutrients. Many of our products are fortified with a higher dose of vitamin B-complex and vitamin C (rosehip), and boast essential nutrients – magnesium, zinc and selenium among others - in an increased amount. Some of our complex formulas provide further extras, eg. extra amino acids, carnitines, stimulants, Glucosamine-Chondroitin- MSM, mixed herbs and other ingredients.
Special mono – and two-component formulas
Vitamin C is helpful in protecting cells against oxidative stress, while contributing to normal collagen production and maintaining the normal condition of cartilages, bones, veins, gums, teeth and skin. Furthermore, it contributes to the normal functioning of the immune system during and after intensive training sessions; its beneficial effects can be achieved by an extra intake of 200 mg vitamin-C on top of the recommended daily amount.
Vitamin-D contributes to the normal operation of muscles and the immune system, the maintenance of bones and the conditioning of teeth, while redounding the absorption/utilisation of calcium and phosphorous.
Magnesium supplements normal protein synthesis, boosts neural functions (such as neurotransmission and muscle-contraction, including myocardial contractions), helps alleviating exhaustion, while contributing to energy yielding metabolic processes and electrolyte balancing.
COLLAGEN SYNTHESIS AND VITAMIN-C
What is collagen?
Collagen is an important constituent of the human body, as it is present in all organs. The word is of Greek origin: “cola” means agglutination and “genno” stands for parents. The name denotes its solidifying role. Collagen is an extremely resistant, fibrous protein, which is a main constituent of bones, cartilages, sinews, ligaments and other connective tissues (skin, nails and hair). In reality, 25-30% of the protein found in our body is provided by collagen. Because collagen does not contain all the essential amino acids (it lacks tryptophan and its cysteine level is quite low as well) it is categorised as an “incomplete protein”. In its commonly known form, collagen is composed of three specially combined amino acid chains. Multiple triple helixes (a spiral of three chains) build up a single collagen fibre.
In general, collagen fibres consist of several different collagen types: collagen I and III are found in the skin, whereas II and III are present in cartilages. The density of collagens (I, II and III) is determined by the differing amounts of amino acids in its chains. Due to its unique physical attributes, the thick system of collagen fibres found in the dermis provides a structural integrity to the entire skin, thus securing the flexibility of it. Collagen synthesis is one of the main “manufacturing” ventures of the human body. The notorious scurvy is an illness, during which collagen synthesis is disturbed, resulting in the body “falling apart”. Collagen shortage leads to atrophy, and as a result cartilages, ligaments, sinews, bones, skin and gums may waste away, get loose and fall off. The condition of the human body soon starts to deteriorate.
Collagen is produced by fibroblast cells. At first, the precursor of collagen, procollagen is created, with Glycine and Prolin as its main components. Vitamin C plays an important role, even at the early stages of procollagen formation. In an experiment, human connective tissue cells were nurtured by vitamin C for a longer period of time. The results showed an eightfold increase in collagen synthesis, whereas other protein processes were left unaffected. (Boyera N, Galey I, Bernard BA.: Effect of vitamin C and its derivatives on collagen synthesis and cross-linking by normal human fibroblasts. Int J Cosmet Sci. 1998 Jun;20(3):151-8. doi: 10.1046/j.1467-2494.1998.171747.x.)
Proper vitamin C supply is vital in the process of healthy collagen production. Furthermore, it is necessary for the normal functioning of lysyl and prolyl hydroxylase – those two enzymes which take part in collagen production. Once these enzymes become inactivated, it might threaten the maintenance of a mature collagen system.
The structure of collagen fibres
After the age of 25, the ability of natural
collagen regeneration weakens,
and by
the age of 50-60, it falls to really low levels.
It results in the appearance of wrinkles,
cellulite, and dry skin, while the nails and
the hair start to become matte. These are
the signs of irreversible aging.
Even though aging is inevitable, there
is absolutely no need to accelerate the
process with smoking. It is common
knowledge that smoking is not only
harmful to our internal organs, but it
makes the skin age faster as well. Heavy
smokers tend to look 5-10 years older
in conjunction with their contemporaries.
According to a study conducted in 1985,
there is a phenomenon that describes a smoker’s aging skin as “the smoker’s
face”. This explains the condition pretty
well. The face of a smoker is prone to
become wrinkled, haggard and pale
even after a few years of smoking. Heavy
and constant smoking might accelerate
the aging of cells and tissues. As cell
formation slows down, the skin turns
flaccid and dried out, and as a result,
it becomes more vulnerable to harmful
external effects. It will start creasing earlier
as it can’t produce enough collagen.
The most menacing side-effect of
smoking on human skin is that it
narrows veins (may cause varicose
veins).
Besides looking healthy, fresh and
alive, the skin gets more oxygen and will
have an efficient vitamin/mineral circulation
too, if it has a satisfactory blood supply.
The tighter these inherently narrow
veins get, the less blood can pass
through them, thus providing
less fresh blood to tissues and
worsening its quality – circulating
stagnant and decomposed
blood. On top of this, carbon
dioxide - as found in smoke –
supersedes a bigger share of
oxygen from blood, and as a
result, less oxygen will be transferred
to the skin.
Smoking harms connective tissues in
many other ways. We already covered that
vitamin-C is vital in the process of collagen
production. Harmful substances found in
cigarettes bound oxygen, which reduce
the effectiveness of collagen synthesis due
to the lack of oxygen in the body. Collagen
fibres’ ability to bound water plays a role in
retaining the tautness of the skin. If there
is a decrease in the number of collagen
fibres or “faulty” fibres are produced, the
skin loses a portion of its water retaining
capabilities, which results in the skin losing
its flexibility and becoming flabby. The face
starts to age optically as well as a result of
the lack of contours.
FREE RADICALS – THE “MISCHIEF-MAKERS” OF THE HUMAN BODY
Our immune system is constantly put to the test as it is extremely exposed to daily stress and our environment in general. When discussing the defense of the human body, we are prone to think about defending against certain pathogens only. In addition to viruses and bacteria, we have another enemy to fear, which is partly produced by ourselves and partially by other different industrial activities. This enemy is the “group” of so-called free radicals.
Free radicals are short-lived, highly reactive molecules which are capable of doing harm to any matter and organ in the human body. These are unstable and reactive particles which seek out other electrons in order to produce new chemical bonds. They exert their influence by dissolving the chemical bonds in intact tissues and forming new, otherwise inapt bonds. Despite all harmful effects, bury in mind that a portion of free radicals plays an important role in various self-supporting mechanisms of the body. A handful of our cells produce free radicals in order to eliminate intruding pathogens. Others generate such radicals which regulate coagulation and blood pressure. Optimally, the defense of the human body should be capable of eliminating those free radicals which were otherwise produced by itself. In case more free radicals are present in the system, it does not only threaten pathogens, but the cells of our body as well. Considering our current environmental circumstances and nutritional habits, it is getting increasingly difficult to provide the required amount of nutrients for neutralising processes. It is harder to maintain a healthy, balanced system, which then starts to feed free radicals which turn against their own host body.
healthy cell
the attack of free radicals
oxidative stress
Free radicals are constantly produced in our environment.
Smoking, drug-,
medicine- and alcohol consumption,
paired with UV radiation, air pollution
and contact with contagious chemicals
all contribute to the formation of free
radicals. Even such an ordinary act as
touching our bathroom accessories
accelerates radical production. Nutrition
can’t be ignored either, as red meat
consumption tends to generate a lot of
free radicals. Furthermore, our digesting
capabilities also have an influence on the
amount of free radicals present in our
system. We don’t necessarily have to
associate them with “ugly” and “harmful”
things when discussing radical sources.
It is enough to take a deep breath outside and the body gets filled with lots of free radicals. Those who have a normal respiration utilise 95% of the air taken, while the remaining 5% breeds free radicals which then launch oxidation processes in our bodies.
The emergence of numerous illnesses is accounted for the activities of free radicals. According to medical science, free radicals are accounted for the appearance of vascular illnesses, cancer, eye diseases, articular- and neural malfunctions for the most part, while other observations claim them to be a cause of Alzheimer’s disease and Parkinson’s disease to a certain extent. They also play a key role in the process of aging, most notably the untimely aging of the skin and elderly dementia. These effects make them the real rebels and – as their English name explains - radicals of cells. If uncontrolled, they are going to ruin everything that comes in their way. Free radicals destroy DNA in cells, they alter the composition of enzymes and other substances which take part in biochemical processes, and they might destroy cell walls or even the entire cell. The effect of free radicals is best illustrated by putting a halved apple on the table. After a couple of minutes it starts to get brown which is a sign of oxidation. The latter is a process that involves molecular electronic transition. If we pour lime juice on it though, the browning won’t occur. Antioxidants found in lime juice prohibit the destruction of cells. The corrosion of metal is a form of oxidation too, against which there are effective antioxidants.
Oxidative stress is a state, in which the proportion of free radicals (prooxidants) and antioxidants shifts towards radicals.
The maintenance of antioxidant
– preoxidant proportions is an important
tool of maintaining overall health. Oxidative
stress damages certain tissues and
biomolecules of organs.
In reality, certain amounts of nucleic acid, proteins and lipids are present in every cell. It means that not only biomolecules are oxidised in real time, but the restoration of their oxidised products is incomplete as well. The quantity of oxidised products indicates the relationship between oxidative- and repairing systems. There is almost no such illness in which the harmful effects of free radicals are not shown; due to their overproduction, or because of the damaged antioxidant system. Antioxidants serve as the frontline versus free radicals. In a broader sense, every oxidation delaying or –inhibiting substance is called antioxidant. However, the expression is primarily used for biological antioxidants. They are capable of neutralising free radicals in a number of ways. They either give an electron to the radical to terminate its operation, or sacrifice themselves in an oxidative process, or they even help repairing damaged antioxidants. They work in synergy, and always back each other up.
The two most renowned antioxidants are vitamin E and C. What is special about vitamin-E is that it is a big molecule and is capable of fighting multiple free radicals simultaneously, and on top of these, it can be reactivated and deployed several times. Vitamin C, as a water-soluble vitamin, “works” in the liquid stocks of cells. Thanks to its special attributes it excels at protection against excessive solar radiation, cigarette smoke and other toxins. Moreover, it is also able to heal a “fallen” vitamin-E. Another antioxidant vitamin is beta-carotene, from which the body manufactures vitamin-A. Selenium is also beneficial for vitamins, most notably vitamin-E. Furthermore, with the help of Selenium, Glutathione Peroxidase – an enzyme incorporated in cells – is successfully able to defend against the attack of free radicals.
VITAMIN-D – 10 TIMES MORE
In reality, vitamin-D is not even a
vitamin, because as opposed to
normal vitamins, the human body
is able to manufacture it for itself.
It rather resembles a hormone
which contributes to the production
of active D-hormones. Out of
vitamin D2 (ergocalciferol) and D3
(cholecalciferol), the latter is more active
when it comes to biological activity and
effectiveness. Upon ultraviolet radiation,
vitamin-D3 is created in the skin from
its precursor, 7-Dehydrocholesterol.
As a second step, it goes through
another mutation in the liver and then
the kidney until it transforms into
1,25-Dihydroxy Vitamin-D (Calcitriol).
Vitamin-D formation is brought
about by the UV-B spectrum of solar
radiation. That is why solarium – which
contains UV-A rays for the most part –
is not eligible to complement vitamin-D.
Unfortunately, from late autumn until
early spring it is impossible to provide the sufficient amount
of vitamin-D in the
majority of Europe.
The increased risk in
the appearance of
certain illnesses in
this period is often
associated with a
possible vitamin-D
deficit. Researches
have shown that 37
degrees north of the
Earth’s equatorial
plane (which
runs through the
Mediterranean See
and Sicily in Europe) it
is impossible to satisfy
vitamin-D needs solely
from sunlight.
The role of vitamin-D
The development of active vitamin-D
The most recent studies pointed out that
vitamin-D does not only contribute to
the health of bones. The European Food
Safety Authority – which is not particularly
famous of its permissiveness – has officially
authorised the following effects:
Vitamin D contributes to:
Vitamin-D also plays a role in cell division. In parallel with newer researches over the past decades, the amount of medically prescribed vitamin-D has grown tenfold as opposed to previous recommendations. The recommended daily intake of vitamin-D for adults is 1500-2000 IU, which is often impossible to solely provide by nutrition during sunlight lacking months.
The daily nutritional intake of vitamin-D among European nations is 40 – 300 IU (Spain and Finland correspondingly). Greater quantities of this vitamin can be found in marine/saltwater fishes, cod liver oil, while it is present in eggs and liver in smaller quantities. Vitamin-D enriched yoghurts, and various non-prescription supplements are available too.
Foods with the highest vitamin D content
cod liver oil; 1 tablespoon | 924 |
salmon; grilled, 100g | 284 |
mackerel; grilled; 100g | 352 |
tuna; in a salty pickle; 100g | 144 |
sardine; canned; in a salty pickle; 100g | 184 |
margarine; enriched; 20g | 62 |
bran flake; 30g | 52 |
hen egg; 50g | 36 |
calf liver; roasted; 100g | 36 |
Possible causes for vitamin D deficit
In the past couple of decades less and less sunlight reaches our skin. Why is it so exactly? It has multiple reasons:
1. |
We tend to spend less time outdoors due to the increased use of air-conditioning. |
2. |
The popularity of home entertainment – multimedia, electronic gadgets, internet etc. – resulting in kids playing less outside. |
3. |
As a result of dominant office jobs and -occupations, we tend to work less outdoors. |
4. |
As the population gradually migrates towards cities, country life is continuously pushed to the background. |
5. |
The increasing popularity of lighter skin shades. |
6. |
We are more afraid of sunbathing, because of the exaggerated fear of skin cancer. |
7. |
Decreasing cholesterol intake – which is otherwise necessary for vitamin D production. |
8. |
Increasing obesity – the vitamin D need of an overweight person is higher! |
9. |
Soft drink consumption means increased phosphorous intake. |
10. |
With the expansion of intensive animal farming, livestock products and meat contain less vitamin D as opposed to animals which were bred outdoors. |
11. |
The increased use of vitamin D “consuming” or blocking medicines. |
12. |
More windows. Windows let through UV-A rays only, which destroy vitamin D. Windows take up more and more space in walls, both in the office and in our homes. |
13. |
High salt consumption decreases the effectiveness of vitamin-D, because it accelerates the depletion of magnesium and calcium in the body. |
The consequences of vitamin D deficit
Vitamin D deficit leads to bone loss and osteoporosis (decreasing of bone mass and density). A more serious shortage might even trigger osteomalacia (bone softening). It increases the chance of bone fracturing, and lowers the effectiveness of medication aimed at osteoporosis. Out of all autoimmune illnesses, vitamin D is often related to rheumatic joint inflammations, diabetes and the increased risk in the appearance of sclerosis multiplex. According to various studies, vitamin D deficit contributes to the appearance and worsening of heart failures, it increases the risk of high blood pressure and arteriosclerosis.
The risk of vitamin D deficit is also considered as a risk factor for those with a diseased kidney. In their case, vitamin D intake is of high priority. From a perspective of breast- and colon cancer, vitamin-D deficit is also a considerable factor, as it is proven to be an emphasized risk factor. Furthermore, it is very likely to have a negative influence on conceiving.
During foetus-, baby- and infant ages, vitamin-D deficit also increases the possibility of type 1 diabetes, and type 2 diabetes after reaching adulthood. On the other hand, liver- and bile diseases might worsen the risk of vitamin-D deficit.
VITAMIN- AND MINERAL CONTENT OF FOODS – FACTS AND FIGURES
Vitamin-C content of fruits and vegetables
(MG/100g; fresh harvest)
It is often read and heard that the
proper way of vitamin- and mineral
replenishment is through daily
nutrition. For an easier navigation
through vitamin- and mineral content
of various foods, please find our
informative charts attached. It is worth
bearing in mind though, that such
charts containing the nutritional facts
of various fruits and vegetables forget
to mention that the data pr esented
only applies to freshly harvested goods. Not only processing, simply
storing decreases the micronutrient
content of harvested vegetables
and fruits. A hundred years ago
roughly two days passed between
harvesting and consumption. This
time span has been extended
to roughly two weeks by today.
Even though vitamin-loss can be
minimalized with quick-freezing,
a 30% loss is still inevitable. When
entering a supermarket though,
our information on the possible
nutrient content of various fruits and
vegetables is approximate to say
the least.
The effect of storage on the vitamin-C
content of vegetables
SCITEC ESSENTIALS AND VITAMIN PRODUCTS