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  Vitamin Bp Choline | Vitamin Deficiencies and Essential Nutrients  

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Vitamin B1 thiamineVitamin B Deficiency Effects

Vitamin B1 thiamine

Deficiency causes beriberi. Symptoms of this disease of the nervous system include weight loss, emotional disturbances, Wernicke's encephalopathy (impaired sensory perception), weakness and pain in the limbs, periods of irregular heartbeat, and edema (swelling of bodily tissues). Heart failure and death may occur in advanced cases. Chronic thiamine deficiency can also cause Korsakoff's syndrome, an irreversible psychosis characterized by amnesia and confabulation.

Vitamin B2 RiboflavinVitamin B2 Riboflavin

Deficiency causes ariboflavinosis. Symptoms may include cheilosis (cracks in the lips), high sensitivity to sunlight, angular cheilitis, glossitis (inflammation of the tongue), seborrheic dermatitis or pseudo-syphilis (particularly affecting the scrotum or labia majora and the mouth), pharyngitis (sore throat), hyperemia, and edema of the pharyngeal and oral mucosa.

Vitamin B3 NiacinVitamin B3 Niacin

Deficiency, along with a deficiency of tryptophan causes pellagra. Symptoms include aggression, dermatitis, insomnia, weakness, mental confusion, and diarrhea. In advanced cases, pellagra may lead to dementia and death (the 3(+1) Ds: dermatitis, diarrhea, dementia, and death).

Vitamin B5 Pantothenic AcidPellagra is a vitamin deficiency disease most commonly caused by a chronic lack of niacin (vitamin B3) in the diet. It can be caused by decreased intake of niacin or tryptophan, and possibly by excessive intake of leucine. It may also result from alterations in protein metabolism in disorders such as carcinoid syndrome. A deficiency of the amino acid lysine can lead to a deficiency of niacin as well, meaning that another potential cause of pellagra is lysine deficiency.

Vitamin B5 Pantothenic Acid

Deficiency can result in acne and paresthesia, although it is uncommon.

Vitamin B6 PyridoxineVitamin B6 Pyridoxine

Deficiency may lead to microcytic anemia (because pyridoxyl phosphate is the cofactor for heme synthesis), depression, dermatitis, high blood pressure (hypertension), water retention, and elevated levels of homocysteine.

Vitamin B7 Biotin

Deficiency does not typically cause symptoms in adults but may lead to impaired growth and neurological disorders in infants. Multiple carboxylase deficiency, an inborn error of metabolism, can lead to biotin deficiency even when dietary biotin intake is normal.

Vitamin B7 Biotin
Initial symptoms of biotin deficiency include:

1. Dry skin
2. Seborrheic dermatitis
3. Fungal infections
4. Rashes including red, patchy ones near
the mouth (erythematous periorofacial macular rash)
5. Fine and brittle hair
6. Hair loss or total baldness (alopecia)

If left untreated, neurological symptoms can develop, including:

1. Mild depression, which may progress to profound lassitude, and eventually to somnolence
2. Changes in mental status
Vitamin B9 Folic Acid 3. Generalized muscular pains (myalgias)
4. Hyperesthesias and paresthesias

Vitamin B9 Folic Acid

Deficiency results in a macrocytic anemia, and elevated levels of homocysteine. Deficiency in pregnant women can lead to birth defects. Supplementation is often recommended during pregnancy. Researchers have shown that folic acid might also slow the insidious effects of age on the brain.

Vitamin B12 Cyanocobalamin

Deficiency results in a macrocytic anemia, elevated homocysteine, peripheral neuropathy, memory loss and other cognitive deficits. It is most likely to occur among elderly people, as absorption through the gut declines with age; the autoimmune disease pernicious anemia is another common cause. It can also cause symptoms of mania and psychosis. In rare extreme cases, paralysis can result.

Vitamin B12 CyanocobalaminVitamin B12 deficiency is a reduction in vitamin B12 from inadequate dietary intake or impaired absorption. The condition is commonly asymptomatic, but can also present as anemia characterized by enlarged blood corpuscles with characteristic changes in neutrophils, known as megaloblastic anemia.

In serious cases deficiency can potentially cause severe and irreversible damage to the nervous system, including subacute combined degeneration of spinal cord.

The anemia is thought to be due to problems in DNA synthesis, specifically in the synthesis of thymine, which is dependent on products of the MTR reaction. Other blood cell types such as white blood cells and platelets are often also low. Bone marrow examination may show megaloblastic hemopoiesis. The anemia responds completely to vitamin B12; the neurological symptoms (if any) respond partly or completely, depending on prior severity and duration.

Vitamin B1 Sources Vitamin B1 Benefits
Vitamin B2 Sources Vitamin B2 Benefits
Vitamin B3 Sources Vitamin B3 Benefits
Vitamin B6 Sources Vitamin B6 Benefits
Vitamin B9 Sources Vitamin B9 Benefits
Vitamin B12 Sources Vitamin B12 Benefits

 

 

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