Archive for the ‘Vitamins’ Category
Consume vitamins in excess may be useless and dangerous
Excess vitamins can be useless or even dangerous, said an expert group on an analysis of Americans’ penchant to consume in the hope of having a long and healthy life.
In a panel discussion held in Washington, nutrition professionals, biochemists, toxicologists, physicians, geriatricians and oncologists indicated that there is no doubt that they are necessary and even indispensable.
However, no study has shown that the amount is equivalent to quality and no matter how many vitamins a person takes will not get to live more or better health. Read the rest of this entry »
Vitamins to Maintain Liver in Perfect Condition
The liver is one of the principal organs of cleansing the body, but for its proper functioning is necessary that we provide ourselves with the necessary substances. Vitamins occupy an important role in this respect and it is therefore necessary that we acquire proper eating habits, and that the liver is an organ that can be significantly affected by reasons such as excessive alcohol intake or taking very strong drugs that cause it to weaken.
As always, food will play an essential role. In this case we will help strengthen the liver and improve its status, namely the hepatocytes, which are responsible for the proper functioning of this body. To make this function correctly the liver needs input from a number of specific vitamins such as B1 or thiamine, B6 or pyridoxine, and B 12 or cyanocobalamin.
The Importance of Vitamin B12
Vitamin B12 is one of the eight most important vitamin B complex and is found mainly in meat, fish and dairy products, although vegetarians may be obtained from algae such as Spirulina.
According to research published in the American Journal of Clinical Nutrition found that meat contains one of the highest levels of the vitamin, but it is absorbed by the body when consumed.
Researchers at the University of Oslo and the University of Bergen, Norway, has found higher levels of bioavailable Vitamin B12 is found in milk, which despite having lower concentrations than the flesh is much better understood.
Vitamin B12, a Concern Vegetarian
Vitamin B12 is necessary for growth, repair and overall health, so it must be present in any type of diet, but their natural sources for obtaining further found in animal products, so vegetarians should pay special attention to get it from other sources.
For lacto-ovo-vegetarians do not have major problems that is present in dairy products and eggs, so do not suffer the same shortcomings, but a problem in other forms of strict vegetarianism, where these products not consumed.
So in place of meat as a source of production, vitamin B12 is found in milk, cheese, eggs, fortified yeast extracts, fortified cereals and fortified soy products.
Foods Rich in Vitamin D
The importance of vitamin D for growth and development, especially in younger children is undeniable. I invite you to learn more about where food sources are.
There are only a few food sources of vitamin D. To begin, we mention fortified foods and beverages such as milk, soy drinks and margarine. Check the labels on these foods.
Fish, liver and egg yolk are the only foods that naturally contain vitamin D.
Vitamin C – Ascorbic Acid
Ascorbic acid, or Vitamin C is a water soluble vitamin, related chemically to glucose, which is only a vitamin for humans, higher primates, guinea pig, some fruit bats and some birds. The vast majority of animals, including farm, they can synthesize it, so do not accumulate in your body (or, possibly, secreted in milk). This has the effect that food animals are generally poor in this vitamin.
Ascorbic acid has a lactone structure. The acidity is not due to a carboxylic group, but the possibility to ionize the hydroxyl located on carbon 3, forming an anion that is stabilized by resonance. Its pKa is 4.04. Eventually, it may even dissociate the hydroxyl located at carbon 2, forming a dianion, although its pK is much higher (11.4), because it is not stabilized by resonance, such as carbon 3.
Ascorbic acid deficiency causes a disease called scurvy, resulting in damages related to the synthesis of collagen, since ascorbic acid is an essential cofactor in this process. The clinical consequences ranging from weak to bleeding gums spread throughout the body.
Overview of vitamins
Vitamins are organic molecules, even in small quantities, are essential for the proper functioning of our body. No single food contains them all, but all provide some.
1. What are they?
Vitamins are organic molecules essential for the proper functioning of our body.
The vast majority of vitamins are essential nutrients needed in small quantities, but must be made through a rich and balanced diet because our body can not synthesize them.
However, there are exceptions, such as vitamin D, which is formed in the skin of niacin or nicotinic acid, formed in liver from an essential amino acid (tryptophan) and vitamin K synthesized by bacteria from the intestinal flora.
2. Functions of vitamins
Vitamins are not used as fuel and provide no energy. However, their presence is essential for the agency to adopt and utilize the energy it needs and to provide other nutrients in the diet as carbohydrates, lipids and proteins.
In addition, vitamins help regulate the nervous system, as well as processes involved in formation of genetic material, protein, red blood cells and hormones.
The lack thereof may cause complex disorders and diseases, most of which are corrected with an adequate supply of them.
Saving Vitamins
There are two main types of vitamins, water soluble vitamins and fat soluble vitamins, and the way the body stores or vitamin content taken from food depends on what type it is. The body can not store water-soluble vitamins and this means that a person needs to replenish your vitamins taking them on a regular basis. The eight B vitamins and vitamin C are water soluble vitamins and the body can not store them.
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Vitamin B12
Do we need vitamin B12
Vitamin B12 or cobalamin is found only in foods of animal origin who have a vegan diet need to consume vitamin supplements for preventing diseases that are caused by their absence.
The required daily dose of vitamin B12 is 2.4 mcg per day.
* The lack of vitamin B12 prevents the iron from being absorbed which can cause anemia.
* Cobalamin deficiency causes nervous disorders, irritability, insomnia, depression, loss of memory, reasoning difficulties, including severe mental illness.
* Tingling in the arms or legs, or numbness can also be caused by lack of vitamin B12. Read the rest of this entry »
Vitamin A for Healthy Eyes
Vitamin A is an antioxidant found in foods made from animals, including liver and eggs and fruits and vegetables such as carrots and spinach. Most types of milk are also fortified with vitamin A.
Vitamin A is essential for the functioning of the retina. This also helps prevent night blindness by helping the eye adjust between light and darkness.
Vitamin A also helps reduce the risk of age-related macular degeneration (AMD) and cataract formation. With AMD and cataracts are a major cause of visual impairment and the number of people who will be affected by the increase, to get a good amount of vitamin A is essential for eye health and beauty.