Thursday, March 24, 2011

Facts about Hypervitaminosis (Vitamin Overdose) on Selected Vitamins


Vitamins plays crucial to our organ system especially in maintaining the overall homeostasis in physiology, thus vitamins as biomolecules comes into different types each with unique structural chemical composition, and biological role to human organ system. And among of the most widely take daily vitamins are C, B complex, A and E. Actual doses are strictly advice depending to age, sex and needs. But, if these are taken excessively or in overdose, it will actually cause several systemic toxic effects to organ system from acute to chronic. So therefore, it is strictly recommended that adequate dosage must be followed to prevent any megadose side effects. 
There several class of vitamins each with unique chemical properties and with important biological roles to human body system. Commonly, classification of these vitamins may vary according to structural chemical composition, biological role and its solubility (fat soluble or water soluble). But whatever the biological role may it serve to human system vitamins are essential biomolecules which sustain homeostasis to organ system physiology as enzymes especially in enhancing the performance of the immune system. With this fact, it is now a norm that vitamin intake supplementation in daily basis must be considered to ensure health wellness especially those who suffer from diseases and illness; actually there are specific intake doses to each vitamin types both to water and fat soluble, if taken excessively beyond the normal dose, it will cause toxicity to organ system hence can lead to paralysis or death is some worst case. For this purpose, only selected vitamins will be viewed in terms to harmful effects that it may cause due to overdose, as well as the right dose that a normal individual must take daily; and these vitamins are C, B complex, A and E.
 Vitamin C (ascorbic acid), is a water soluble types which plays numerous essential roles to human organ system especially in metabolic reactions and enhancement of the immune system. The recommended daily intake of ascorbic acid depends by age and sex; such in the United States, adult males should take 90mg per day while for adult female 75mg per day and the tolerable upper intake level for both adult male and female 2,000mg per day. The toxicity of ascorbic acid overdose may vary according to subject age, but the most common manifestation of ascorbic acid overdose and side effects are indigestion, skin rashes, headache, disturbed sleep, nausea, and vomiting if severe.
Vitamin B complex, this type is of water soluble comes into many types (B1, B2, B3, B5, B7, B9, and B12) each with unique biological function, and  plays crucial role to human organ system especially in the enhancement of the immune system, nervous system, and metabolism. The recommended daily intake of B complex may vary from types, so far the established recommendation for B3 (niacin) is 35mg/day; while for B6 (pyridoxine) is 100mg/day; and B9 (folic acid) is 1mg/day. B complex toxicity may vary, but the most common manifestation is nausea, vomiting, liver toxicity, skin rashes, and blured vision.
Vitamin A (retinol) is a essential biomolecule has numerous metabolic functions which includes vision (formation of retinal), gene transcription, haematopoiesis (blood cell production), antioxidant activity, skin health and many more. The recommended daily intake of retinol may vary according to subject age and sex. For adult males, the recommended daily intake is 900µg and upper limit of 3000µg; for adult female, is 700µg and upper limit of 3000µg. While for children age 1-3, the recommended dose is 300µg and upper limit is 400µg. Overdose of retinol can cause some adverse effects to organ system depending on the amount taken excessively; among the common effects to organ system of retinol overdose is renal failure, liver toxicity, anorexia (reduced appetite), blurry vision, vomiting, hair loss, altered mental health, muscle and abdominal pain, irritability, and drying of skin; actually there are numerous manifestations of retinol overdose from acute to chronic other than stated.
Vitamin E (tocopherol) is a fat soluble vitamin, its function to the organ system generally is very essential especially in protecting the cell as an antioxidant. The recommended daily intake of tocopherol for adult male and female is 15mg/day; while depending on the age, daily recommended intake of tocopherol generally vary. In relationship, there is no findings regarding the toxicity of tocopherol overdose to human organ system; but there are several ongoing studies are now progressing towards this path to identify the effects of vitamin E overdose to human health.



Wednesday, March 23, 2011

Vita-minds; recommended vitamins for your nervous system


The human nervous system is the most complex system which plays numerous very important roles to the human organ system; primary one of the most important function of the nervous system is the maintenance of internal physiologic homeostasis. And one of the most important bio molecules that play a crucial part to the function of this system is the vitamins. Vitamins comes into numerous classes, they differ according to their structural and chemical composition and their biological role to cellular metabolism. Among of the most important vitamins that play vital function in to this system is vitamin B complex, vitamin C, and vitamin E. These vitamins play different roles to the wellness of the nervous system, such as in the enhancement of nerve impulse transmission.

The most complex system of the human body is the nervous system, which abundantly comprises of neurons, astrocytes, glial cells, and many other supporting cells which functions either in nerve signal transmission/ conduction and maintenance (growth and repair). Generally, this system has numerous functions, and two of the most important functional roles of the nervous system are to maintain organ system homeostasis of the physiology and processing of information from the receptor cells to muscular innervations. When it comes into the maintenance and regulation of nerve impulse transmission and conduction, several bio molecules do play an important role to the wellness of this body system function; and these bio molecules are known to be vitamins. There are several types of vitamins that play critical role to the function and maintenance of the nervous system, these vitamins particularly differs according to their biological role, chemical composition and source. For this purpose, only selected vitamins will viewed, specifically those plays critical role and function.
The following are the vitamin that is good for your nervous system with classification, food source and role to nervous system function and maintenance: Vitamin B complex (B1, B2, B6, and B12), vitamin D, vitamin C, and vitamin E. The B vitamin complex is water soluble vitamin, they come into numerous types each with unique structural configurations and functional role to the organ system especially in the central nervous region; B1 (thiamine) help to facilitate impulse transmission by hastening conduction of ion exchange, B2 (riboflavin) aids in the metabolism of nerve cell and cellular nerve repair, B6 (pyridoxine) hasten many metabolic reactions such as nerve cell growth and repair, B12 (cobalamin) important mediator in nerve impulse transmission and repair; there are many food source for B complex vitamins, and this vitamin is abundantly found in meat, green leafy vegetables, fruits such as bananas and many more. The next type is vitamin C (ascorbic acid), it is a water soluble vitamin which aids in body metabolism of iron, amino acids and carbohydrates which are the important raw materials for the maintenance of peripheral and central nervous region structure; vitamin C is found abundantly in fruits and vegetables such as citrus fruits, fleshy fruit and green leafy vegetables. And lastly, is vitamin E (α-trocopherols); is a fat soluble vitamin that serves as catalyst to the enhancement of nerve signal transmission; vitamin E rich food are mostly found among cereals, seafoods, fruits and vegetables and many more.
In convergence, the general function of these vitamins to the nervous system is to enhance the function of nerve impulse transmission and maintenance (repair and nourishment) of nerve cell and other support cells (glial cells). In relation to this, there are several vitamin supplements that are available today; they come into numerous forms such as pills and concentrated liquids (extracts juices, syrup, and many more). Through these alternative vitamin supplements, it is now possible for every individual to avail these vitamins even though they don’t consume these foods that contains high amount of vitamins especially those that are important.





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Some Common Vitamins and Minerals Side Effects


Vitamins and minerals come into numerous types, and they differ according to their chemical structural component and the biological functions that they play. Among of the most common vitamins and minerals that most people take daily are ascorbic acid, the B complex vitamins (niacin, pantothenic, riboflavin, thiamine, and many more), vitamin E, iron, calcium, and many more. Specifically, there are suggested dose for intake of these vitamins and minerals that the body could tolerate in moderation; if these taken too excessively, manifestations of over dosage will come out. Even though taking the right dose of these vitamins and minerals there still some side effects manifestations to some individual. So if you are wondering regarding the side effect of the vitamin and minerals that you are taking daily, this article will guide you to some common signs and symptoms to numbers of vitamins and minerals.

There are numerous vitamins and minerals, and they differ and classified according to their chemical and structural component as well the biological function they serve. As numerous studies suggested, there are some allowable recommended dosage for intake of these vitamins and minerals; and if taken too excessively different signs and symptoms will do appear as well as the toxic effects. Even though these vitamins and minerals are taken in the right dosage, still there are some manifestations of side effects. As numerous studies concluded, there are numerous signs and symptoms and diaseases of vitamins and minerals intoxication ranging from diarrhea, vomiting, and nausea; but the most effective cure into this vitamin and mineral intoxication and side effects is to reduce the dosage or stop taking it.
Here are some vitamins and minerals so with their respective toxic dose and side effects:
The B complex vitamins (Niacin, Pantothenic, Pyridoxine, Riboflavin and Thiamine):
• Niacin, among the common manifestation of side effects and intoxication are headache, nausea, cramps and vomiting; and the toxic dose is 100mg.
• Pantothenic, among the common signs and symptoms of Pantothenic intoxication and side effect is diarrhea; the toxic dose of this vitamin has not yet been established.
• Pyridoxine, among the common signs and symptoms of this vitamin intoxication and side effect is moto nerver impairment; the toxic dose of this vitamin 300mg.
• Riboflavin, among the common signs and symptoms of this vitamin intoxication and side effect have yet been established so with the amount of intoxication.
• Thiamine, no signs and symptoms has been established in regard to this vitamin intoxication, side effects as well as the toxic dose.




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Tuesday, March 22, 2011

Daily Vitamins and Nutrient Intake

The human body is the most complex system, composed of organs each serve unique in purpose. To carry out normal physiological function of each organ most especially in cellular level essential nutrients must be supplemented; nutrient comes into numerous types: carbohydrates, lipids, protein, vitamins and minerals. These bio-molecules serve as row materials to the functioning enzymes and mediate in several cellular interactions such as protein synthesis, cellular respiration and many more. These nutrients has specific requirement depending on person sex, age, and health condition. While in other way around, suggestion to food intake in daily basis has also been recommended and suggested according to sex, age and health condition of an individual.    
 
In our everyday life, we consume numerous types of foods from breakfast, lunch, dinner to snacks. The human diet is among the broadest in terms of food reference, manifesting huge needs for variety of vitamins and minerals for the wellness of the organ system function. For an average individual, the recommended daily dietary allowances as recommended by committee on foods and nutrition are as follows: Calories 270, Protein 56 grams, Calcium 0.8 grams, Iron 10 milligrams, Vitamin A 5000 iu, Thiamine 1.4 milligrams, Ascorbic acid 45 milligrams, Riboflavin 1.6 milligrams, and Niacin 18 milligrams; this recommended everyday nutrient intake is intended to individuals who are healthy, physically active man of 25 years old who weighs 70 kilograms. While on an average healthy woman who is physically active, similar recommended nutrient intake is recommended, but regardless of health conditions variation of daily nutrient intake may differ is also applied for men. For this purpose, recommended daily intake of vitamins and minerals and the suggested food class daily intake will be viewed.
Numerous food types has different suggested intake daily, which varies from age and sex. And as suggested by Department of Agriculture United States, here are the food types and their suggested daily intake: Protein group foods two or more servings daily (meat, eggs, beans, peas, nuts and many more), vegetable and fruits four to six servings (leafy and yellow vegetables, citrus fruit and many more), bread cereal food type four or more servings a day (bread, whole grain based foods, rice and many more), and dairy and milk group of four or more cups daily for adults and nursing mothers and 3 or more cups for children and pregnant women. As stated, these are the food groups and their suggested servings. But specifically, these different foods types constitutes different nutrient component which in breakdown composed of carbohydrates, fats, proteins, vitamins and minerals.
With these facts, it is widely known that intake of vitamins and minerals must be strongly regulated daily. With regard to this, there are special case to special dietary needs such as undernutrition, childhood, pregnancy and obesity. Dietary requirement for individual who undergoes obesity treatment requires specialized and reduced dietary regulation; the calories intake must greatly be reduced in high amount while the vitamins and minerals intake must be maintained in recommended dose. For undernutrition case, high amount of essential nutrients must be regulated, such as high calories food as well as high vitamins and mineral foods in intense time program. While for pregnant mothers, the suggested dietary requirements are the essential elements such as proteins, vitamins and minerals while the caloric intake should be in moderate amount not to cause too much weight increase. And lastly, is the dietary requirement for childhood: in this stage of growth and development, high amount of protein, vitamins and minerals must be recommended especially milk, and food supplements comprising of vitamin C, Vitamin A and other vitamins and minerals.





  




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