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Deficiency isn't common, but can produce some scary side effects when it does happen. Lack of vitamin B12 can cause megaloblastic anemia —a condition characterized by larger than normal red ...
Vitamin B 12 deficiency, also known as cobalamin deficiency, is the medical condition in which the blood and tissue have a lower than normal level of vitamin B 12. [5] Symptoms can vary from none to severe. [1] Mild deficiency may have few or absent symptoms. [1]
“A B12 deficiency can cause physical and neurological symptoms, and research is also growing to support that it can also cause psychological issues as well,” says Shapiro. The list of ...
Pernicious anemia is a disease where not enough red blood cells are produced due to a deficiency of vitamin B 12. [5] Those affected often have a gradual onset. [5] The most common initial symptoms are feeling tired and weak. [4]
Deficiency symptoms in children include developmental delay, regression, irritability, involuntary movements and hypotonia. [34] Vitamin B 12 deficiency is most commonly caused by malabsorption, but can also result from low intake, immune gastritis, low presence of binding proteins, or use of certain medications. [6]
Ultimately, doctors stress that a vitamin B12 deficiency and the symptoms that come with it are reversible. “The effects of supplements are often noticed within weeks,” Sachdev says. More on ...
Niacin deficiency is a consequence of a diet low in both niacin and the amino acid tryptophan, a precursor for the vitamin. 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]
12 deficiency because it has a slightly lower bioavailability. Some studies have shown it to possess an antihypotensive effect. [5] Vitamin B 12 is an essential nutrient meaning that it cannot be made by the body but is required for life. [12] [10] Cyanocobalamin was first manufactured in the 1940s. [13]