Cause of vitamin b12 deficiency
Cause of vitamin b12 deficiency are mainly divided into three categories:-
1-Nutritional
People are at risk of the deficiency of vitamin B12 having low protein diet. Body can store vitamin B12 up to 2 to 3year, if the absence of vitamin B12 is continue in the diet like liver, beef, cheese and shellfish then there is a chance for the development of vitamin B12.
A person who does not eat any animal product such as meat, milk, egg can suffer from vitamin B12 deficiency so they need a proper supplement of vitamin B12.
Deficiency of vitamin B12 is common in senior citizens because they take less nutritious diet and also take light meal.
2-Gastrointestinal
For the absorption of vitamin B12 gastric acid is extremely important, as vitamin B12 is drawn by gastric acid from protein. Senior citizens have a high risk of anemia and dementia and other illnesses by vitamin B12 deficiency because stomach acid production decreases with age.
Intestinal surgery and gastric bypass patients having a risk of development of nutritional deficiency. during these procedure gastric acid are lost in an excessive amount which are extremely important for the absorption vitamin B12.By the side effect of gastrointestinal surgery bacterial host are present within the intestinal wall which could result in low vitamin B12.
Antacid medication is very necessary for the the patient for proper absorption of vitamin B12 those who are suffering from chronic acid indigestion.Pregnant women should also take supplement of antacid with vitamin B12.
some genetic disorder are also cause irreparable disorder to the intestine which reduce the efficiency of nutrient absorption.patients suffering from celiac disease are sensitive to gluten they should the food containing gluten which could result in intestinal wall injury and malnourishment.Chonic diarrhea and undernourishment are the result of crohn’s disease which is a gastrointestinal condition ;symptoms of crohn’s disease include inflammation to the digestive tract.
3-Hereditary Mal absorption Syndrome
An extremely important antibody called “intrinsic factor” for the utilization of vitamin B12 ,it attach itself to the dietaryand assits in the absorption of vitamin B12.Those who are lacking with intrinsic factor whose presence is determined by heredity,cannot access vitamin B12 naturally from their food and risk becoming anemic.
Mostly sufferer are unaware of their condition of vitamin B12 deficiency untill they recive the blood test.
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Symptoms of vitamin B12 deficiency
To indicate the nutritional vitamin B12 deficiency there are many signs.For the proper analysis vitamin B12 blood screening is crucial.Symptoms include but not limited to:
Neurological symptom:
- Paresthesia
- Combined system disease
- Decrease reflexes
- Ataxia
- Peripheral neuropathy:abnormal gait,improved vibration or position sence,impaired pain or touch perception
- Increased unsteadiness on feet while eyes are closed,also known as Romberg’s sign
- Electric-like shocks down the spine while rotating the head,also known as Lhermitte’s sign
- Unexplained vision or taste impairment
Physical symptoms:
- Nausea
- Heartburn
- Weakness or fatigue
- Impotence
- Muscular soreness
- shortness of breath
- Abdominal blotting
- Headache
- Urinary and fecal incontinence
- Cardiovascular symptoms:
- Heart palpitations
- Increased like hood for heart attack and stroke
Psychological Symptom:
- Disorientation
- Memory loss
- Apathy
- Irritability
- Violent behavior
- Depression
- Paranoia
- Dementia
- Psychosis
- Personality changes
- Hallucinations
Hematological Symptoms:
- Megaloblastic anemia
- Pancytopenia
Pernicious anemia
This is a kind of metablastic anemia,documented in 1900s with the condition of insufficient heamoglobin in red blood cells and tissue.The symptoms of pernicious anemia is cheast pain,coldness in hand and feet,shortness of breath,dizziness headacheand extreme fatigue.
Sub-acute Combined Degeneration
SCD is a deterioration of the spinal cord caused by the deficiency of vitamin B12.SCD cause impairment to the peripheral nerve,eyes and brain.Its damage is irreversible if not detected earlier.symptoms vary between adults and children.
Test for vitamin B12 deficiency
Diagnosis of vitamin B12 deficiency can be obtain only through blood screening.chronic condition require screening in a month.For the prevention on deficiency yearly blood test is recommended.
sign of vitamin b12 deficiency
The person is at risk if belongs to the following group:
- People over the age of 60
- Vegetarian or vegans
- Individual with pernicious anemia
- Gastric bypass and gastrointestinal disorder patients
- Individual with chronic fatigue syndrome
- Autoimmune disease patients
- Athletes
- Crohn’s disease patients
- Chronic pancreatitis patients
- Thyroid disease patients
- Individual with malabsorption syndrome.
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