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Lack of vitamin B12 can cause megaloblastic anemia—a condition characterized by larger than normal red blood cells in a smaller than normal amount. This causes fatigue, paleness in the skin ...
Vitamin B12 deficiency symptoms . Vitamin B12 deficiency has a few hallmark symptoms, according to doctors: Lack of energy. Mental fatigue. Nausea, vomiting, or diarrhea. Lack of appetite. Weight loss
Treatment should take into account the cause and severity of the condition. [6] Treatment is done by vitamin B 12 supplementation, either by mouth or by injection. [3] Initially in high daily doses, followed by less frequent lower doses, as the condition improves. [3] If a reversible cause is found, that cause should be corrected if possible. [11]
[6] [24] Deficiency at levels only slightly lower than normal can cause a range of symptoms such as fatigue, feeling weak, lightheadedness, dizziness, breathlessness, headaches, mouth ulcers, upset stomach, decreased appetite, difficulty walking (staggering balance problems), [15] [25] muscle weakness, depression, poor memory, poor reflexes ...
If the symptoms are serious, frequent injections are typically recommended initially. [7] There are not enough studies that pills are effective in improving or eliminating symptoms. [12] Often, treatment may be needed for life. [13] Pernicious anemia is the most common cause of clinically evident vitamin B 12 deficiency worldwide. [14]
Over time, a deficiency of B12 can cause problems with balance, confusion, depression, poor memory and possibly dementia, and it can even cause permanent damage to the nervous system, Somers says.
Pernicious anaemia is a lifelong condition that affects nearly 5 in 100,000 people in the UK.
Low plasma tryptophan is a non-specific indicator, meaning it can have other causes. The signs and symptoms of niacin deficiency start to revert within days of oral supplementation with large amounts of the vitamin. [23] [24] Chronic alcoholism is a contributing risk factor. Pantothenic acid (Vitamin B 5) deficiency: Irritability, fatigue, and ...